Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

49 files changed, 21129 insertions, 0 deletions

diff --git a/stoc/source/corereflection/base.hxx b/stoc/source/corereflection/base.hxx
new file mode 100644
index 0000000000..03d844de3c
--- /dev/null
+++ b/stoc/source/corereflection/base.hxx
@@ -0,0 +1,406 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+//  #define TEST_LIST_CLASSES
+
+#ifndef INCLUDED_STOC_SOURCE_COREREFLECTION_BASE_HXX
+#define INCLUDED_STOC_SOURCE_COREREFLECTION_BASE_HXX
+
+#include <sal/config.h>
+
+#include <o3tl/any.hxx>
+#include <osl/mutex.hxx>
+#include <uno/mapping.hxx>
+#include <uno/dispatcher.h>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/ref.hxx>
+
+#include "lrucache.hxx"
+
+#ifdef TEST_LIST_CLASSES
+#include <vector>
+#include <algorithm>
+#endif
+#include <unordered_map>
+#include <memory>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+
+#include <com/sun/star/reflection/XIdlReflection.hpp>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::reflection { class XIdlClass; }
+namespace com::sun::star::reflection { class XIdlField; }
+namespace com::sun::star::reflection { class XIdlMethod; }
+
+namespace stoc_corefl
+{
+
+#ifdef TEST_LIST_CLASSES
+extern std::vector<OUString> g_aClassNames;
+#endif
+
+
+::osl::Mutex & getMutexAccess();
+
+
+inline bool td_equals( typelib_TypeDescription * pTD, typelib_TypeDescriptionReference * pType )
+{
+    return (pTD->pWeakRef == pType ||
+            (pTD->pTypeName->length == pType->pTypeName->length &&
+             rtl_ustr_compare( pTD->pTypeName->buffer, pType->pTypeName->buffer ) == 0));
+}
+
+typedef std::unordered_map< OUString, css::uno::WeakReference< css::reflection::XIdlField > > OUString2Field;
+typedef std::unordered_map< OUString, css::uno::WeakReference< css::reflection::XIdlMethod > > OUString2Method;
+
+
+class IdlReflectionServiceImpl
+    : public ::cppu::WeakComponentImplHelper<
+          css::reflection::XIdlReflection,
+          css::container::XHierarchicalNameAccess,
+          css::lang::XServiceInfo>
+{
+    ::osl::Mutex                            _aComponentMutex;
+    css::uno::Reference< css::container::XHierarchicalNameAccess >    _xTDMgr;
+
+    // caching
+    LRU_CacheAnyByOUString                  _aElements;
+
+    css::uno::Mapping                     _aCpp2Uno;
+    css::uno::Mapping                     _aUno2Cpp;
+
+    inline css::uno::Reference< css::reflection::XIdlClass > constructClass( typelib_TypeDescription * pTypeDescr );
+
+public:
+    /// @throws css::uno::RuntimeException
+    const css::uno::Mapping & getCpp2Uno();
+    /// @throws css::uno::RuntimeException
+    const css::uno::Mapping & getUno2Cpp();
+    /// @throws css::uno::RuntimeException
+    uno_Interface * mapToUno( const css::uno::Any & rObj, typelib_InterfaceTypeDescription * pTo );
+
+    // ctor/ dtor
+    explicit IdlReflectionServiceImpl( const css::uno::Reference< css::uno::XComponentContext > & xContext );
+    virtual ~IdlReflectionServiceImpl() override;
+
+    // WeakComponentImplHelper
+    virtual void SAL_CALL disposing() override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString & rServiceName ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XIdlReflection
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL forName( const OUString & rTypeName ) override;
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL getType( const css::uno::Any & rObj ) override;
+
+    // XHierarchicalNameAccess
+    virtual css::uno::Any SAL_CALL getByHierarchicalName( const OUString & rName ) override;
+    virtual sal_Bool SAL_CALL hasByHierarchicalName( const OUString & rName ) override;
+
+    /// @throws css::uno::RuntimeException
+    css::uno::Reference< css::reflection::XIdlClass > forType( typelib_TypeDescription * pTypeDescr );
+    /// @throws css::uno::RuntimeException
+    css::uno::Reference< css::reflection::XIdlClass > forType( typelib_TypeDescriptionReference * pRef );
+};
+
+
+class IdlClassImpl
+    : public ::cppu::WeakImplHelper< css::reflection::XIdlClass >
+{
+    rtl::Reference<IdlReflectionServiceImpl>
+                                 m_xReflection;
+
+    OUString                    _aName;
+    css::uno::TypeClass         _eTypeClass;
+
+    typelib_TypeDescription *   _pTypeDescr;
+
+public:
+    typelib_TypeDescription *   getTypeDescr() const
+        { return _pTypeDescr; }
+    IdlReflectionServiceImpl *  getReflection() const
+        { return m_xReflection.get(); }
+
+    // Ctor
+    IdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                  OUString aName, typelib_TypeClass eTypeClass,
+                  typelib_TypeDescription * pTypeDescr );
+    virtual ~IdlClassImpl() override;
+
+    // XIdlClassImpl default implementation
+    virtual css::uno::TypeClass SAL_CALL getTypeClass() override;
+    virtual OUString SAL_CALL getName() override;
+    virtual sal_Bool SAL_CALL equals( const css::uno::Reference< css::reflection::XIdlClass >& xType ) override;
+
+    virtual sal_Bool SAL_CALL isAssignableFrom( const css::uno::Reference< css::reflection::XIdlClass > & xType ) override;
+    virtual void SAL_CALL createObject( css::uno::Any & rObj ) override;
+
+    // def impl ????
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > > SAL_CALL getClasses() override;
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL getClass( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > > SAL_CALL getInterfaces() override;
+
+    // structs, interfaces
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > > SAL_CALL getSuperclasses() override;
+    // structs
+    virtual css::uno::Reference< css::reflection::XIdlField > SAL_CALL getField( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > SAL_CALL getFields() override;
+    // interfaces
+    virtual css::uno::Uik SAL_CALL getUik() override;
+    virtual css::uno::Reference< css::reflection::XIdlMethod > SAL_CALL getMethod( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlMethod > > SAL_CALL getMethods() override;
+    // array
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL getComponentType() override;
+    virtual css::uno::Reference< css::reflection::XIdlArray > SAL_CALL getArray() override;
+};
+
+
+class InterfaceIdlClassImpl
+    : public IdlClassImpl
+{
+    typedef std::pair< OUString, typelib_TypeDescription * > MemberInit;
+
+    css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > >      _xSuperClasses;
+
+    std::unique_ptr<MemberInit[]>           _pSortedMemberInit; // first methods, then attributes
+    OUString2Field                          _aName2Field;
+    OUString2Method                         _aName2Method;
+    sal_Int32                               _nMethods;
+    sal_Int32                               _nAttributes;
+
+    void initMembers();
+
+public:
+    typelib_InterfaceTypeDescription * getTypeDescr() const
+        { return reinterpret_cast<typelib_InterfaceTypeDescription *>(IdlClassImpl::getTypeDescr()); }
+
+    // ctor/ dtor
+    InterfaceIdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                           const OUString & rName, typelib_TypeClass eTypeClass,
+                           typelib_TypeDescription * pTypeDescr )
+        : IdlClassImpl( pReflection, rName, eTypeClass, pTypeDescr )
+        , _nMethods( 0 )
+        , _nAttributes( 0 )
+        {}
+    virtual ~InterfaceIdlClassImpl() override;
+
+    // IdlClassImpl modifications
+    virtual sal_Bool SAL_CALL isAssignableFrom( const css::uno::Reference< css::reflection::XIdlClass > & xType ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > > SAL_CALL getSuperclasses() override;
+    virtual css::uno::Uik SAL_CALL getUik() override;
+    virtual css::uno::Reference< css::reflection::XIdlMethod > SAL_CALL getMethod( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlMethod > > SAL_CALL getMethods() override;
+    virtual css::uno::Reference< css::reflection::XIdlField > SAL_CALL getField( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > SAL_CALL getFields() override;
+    virtual void SAL_CALL createObject( css::uno::Any & rObj ) override;
+};
+
+
+class CompoundIdlClassImpl
+    : public IdlClassImpl
+{
+    css::uno::Reference< css::reflection::XIdlClass >
+                                             _xSuperClass;
+    std::optional< css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > >
+                                            m_xFields;
+    OUString2Field                          _aName2Field;
+
+public:
+    typelib_CompoundTypeDescription * getTypeDescr() const
+        { return reinterpret_cast<typelib_CompoundTypeDescription *>(IdlClassImpl::getTypeDescr()); }
+
+    // ctor/ dtor
+    CompoundIdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                          const OUString & rName, typelib_TypeClass eTypeClass,
+                          typelib_TypeDescription * pTypeDescr )
+        : IdlClassImpl( pReflection, rName, eTypeClass, pTypeDescr )
+        {}
+    virtual ~CompoundIdlClassImpl() override;
+
+    // IdlClassImpl modifications
+    virtual sal_Bool SAL_CALL isAssignableFrom( const css::uno::Reference< css::reflection::XIdlClass > & xType ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlClass > > SAL_CALL getSuperclasses() override;
+    virtual css::uno::Reference< css::reflection::XIdlField > SAL_CALL getField( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > SAL_CALL getFields() override;
+};
+
+
+typedef cppu::ImplInheritanceHelper<IdlClassImpl, css::reflection::XIdlArray> ArrayIdlClassImpl_Base;
+class ArrayIdlClassImpl : public ArrayIdlClassImpl_Base
+{
+public:
+    typelib_IndirectTypeDescription * getTypeDescr() const
+        { return reinterpret_cast<typelib_IndirectTypeDescription *>(IdlClassImpl::getTypeDescr()); }
+
+    // ctor
+    ArrayIdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                       const OUString & rName, typelib_TypeClass eTypeClass,
+                       typelib_TypeDescription * pTypeDescr )
+        : ArrayIdlClassImpl_Base( pReflection, rName, eTypeClass, pTypeDescr )
+        {}
+
+    // IdlClassImpl modifications
+    virtual sal_Bool SAL_CALL isAssignableFrom( const css::uno::Reference< css::reflection::XIdlClass > & xType ) override;
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL getComponentType() override;
+    virtual css::uno::Reference< css::reflection::XIdlArray > SAL_CALL getArray() override;
+
+    // XIdlArray
+    virtual void SAL_CALL realloc( css::uno::Any & rArray, sal_Int32 nLen ) override;
+    virtual sal_Int32 SAL_CALL getLen( const css::uno::Any & rArray ) override;
+    virtual css::uno::Any SAL_CALL get( const css::uno::Any & rArray, sal_Int32 nIndex ) override;
+    virtual void SAL_CALL set( css::uno::Any & rArray, sal_Int32 nIndex, const css::uno::Any & rNewValue ) override;
+};
+
+
+class EnumIdlClassImpl
+    : public IdlClassImpl
+{
+    std::optional< css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > > m_xFields;
+    OUString2Field                       _aName2Field;
+
+public:
+    typelib_EnumTypeDescription * getTypeDescr() const
+        { return reinterpret_cast<typelib_EnumTypeDescription *>(IdlClassImpl::getTypeDescr()); }
+
+    // ctor/ dtor
+    EnumIdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                      const OUString & rName, typelib_TypeClass eTypeClass,
+                      typelib_TypeDescription * pTypeDescr )
+        : IdlClassImpl( pReflection, rName, eTypeClass, pTypeDescr )
+        {}
+    virtual ~EnumIdlClassImpl() override;
+
+    // IdlClassImpl modifications
+    virtual css::uno::Reference< css::reflection::XIdlField > SAL_CALL getField( const OUString & rName ) override;
+    virtual css::uno::Sequence< css::uno::Reference< css::reflection::XIdlField > > SAL_CALL getFields() override;
+    virtual void SAL_CALL createObject( css::uno::Any & rObj ) override;
+};
+
+
+class IdlMemberImpl
+    : public ::cppu::WeakImplHelper< css::reflection::XIdlMember >
+{
+    rtl::Reference<IdlReflectionServiceImpl>
+                                m_xReflection;
+    OUString                    _aName;
+
+    typelib_TypeDescription *   _pTypeDescr;
+    typelib_TypeDescription *   _pDeclTypeDescr;
+
+protected:
+    css::uno::Reference< css::reflection::XIdlClass >      _xDeclClass;
+
+public:
+    IdlReflectionServiceImpl *  getReflection() const
+        { return m_xReflection.get(); }
+    typelib_TypeDescription *   getTypeDescr() const
+        { return _pTypeDescr; }
+    typelib_TypeDescription *   getDeclTypeDescr() const
+        { return _pDeclTypeDescr; }
+
+    // ctor/ dtor
+    IdlMemberImpl( IdlReflectionServiceImpl * pReflection, OUString aName,
+                   typelib_TypeDescription * pTypeDescr, typelib_TypeDescription * pDeclTypeDescr );
+    virtual ~IdlMemberImpl() override;
+
+    // XIdlMember
+    virtual css::uno::Reference< css::reflection::XIdlClass > SAL_CALL getDeclaringClass() override;
+    virtual OUString SAL_CALL getName() override;
+};
+
+
+// coerces to type descr pTo else queries for it: the interface pointer is returned via rDest
+// ## type to XidlClass coercion possible
+inline bool extract(
+    const css::uno::Any & rObj, typelib_InterfaceTypeDescription * pTo,
+    css::uno::Reference< css::uno::XInterface > & rDest,
+    IdlReflectionServiceImpl * pRefl )
+{
+    rDest.clear();
+    if (nullptr != pTo)
+    {
+        if (! rObj.hasValue())
+            return true;
+        if (rObj.getValueTypeClass() == css::uno::TypeClass_INTERFACE)
+        {
+            return ::uno_type_assignData(
+                &rDest, pTo->aBase.pWeakRef,
+                const_cast< void * >( rObj.getValue() ), rObj.getValueTypeRef(),
+                reinterpret_cast< uno_QueryInterfaceFunc >(css::uno::cpp_queryInterface),
+                reinterpret_cast< uno_AcquireFunc >(css::uno::cpp_acquire),
+                reinterpret_cast< uno_ReleaseFunc >(css::uno::cpp_release) );
+        }
+        else if (auto t = o3tl::tryAccess<css::uno::Type>(rObj))
+        {
+            rDest = pRefl->forType( t->getTypeLibType() );
+            return rDest.is();
+        }
+    }
+    return false;
+}
+
+inline bool coerce_assign(
+    void * pDest, typelib_TypeDescription * pTD, const css::uno::Any & rSource,
+    IdlReflectionServiceImpl * pRefl )
+{
+    if (pTD->eTypeClass == typelib_TypeClass_INTERFACE)
+    {
+        css::uno::Reference< css::uno::XInterface > xVal;
+        if (extract( rSource, reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD), xVal, pRefl ))
+        {
+            if (*static_cast<css::uno::XInterface **>(pDest))
+                (*static_cast<css::uno::XInterface **>(pDest))->release();
+            *static_cast<css::uno::XInterface **>(pDest) = xVal.get();
+            if (*static_cast<css::uno::XInterface **>(pDest))
+                (*static_cast<css::uno::XInterface **>(pDest))->acquire();
+            return true;
+        }
+        return false;
+    }
+    else if (pTD->eTypeClass == typelib_TypeClass_ANY)
+    {
+        return uno_assignData(
+            pDest, pTD,
+            const_cast<css::uno::Any *>(&rSource), pTD,
+            reinterpret_cast< uno_QueryInterfaceFunc >(css::uno::cpp_queryInterface),
+            reinterpret_cast< uno_AcquireFunc >(css::uno::cpp_acquire),
+            reinterpret_cast< uno_ReleaseFunc >(css::uno::cpp_release) );
+    }
+    else
+    {
+        return uno_type_assignData(
+            pDest, pTD->pWeakRef,
+            const_cast<void *>(rSource.getValue()), rSource.getValueTypeRef(),
+            reinterpret_cast< uno_QueryInterfaceFunc >(css::uno::cpp_queryInterface),
+            reinterpret_cast< uno_AcquireFunc >(css::uno::cpp_acquire),
+            reinterpret_cast< uno_ReleaseFunc >(css::uno::cpp_release) );
+    }
+}
+
+}
+
+
+#endif // INCLUDED_STOC_SOURCE_COREREFLECTION_BASE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/crarray.cxx b/stoc/source/corereflection/crarray.cxx
new file mode 100644
index 0000000000..67be31e1ac
--- /dev/null
+++ b/stoc/source/corereflection/crarray.cxx
@@ -0,0 +1,166 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <typelib/typedescription.h>
+#include <uno/data.h>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/typeprovider.hxx>
+
+#include "base.hxx"
+
+using namespace css::lang;
+using namespace css::reflection;
+using namespace css::uno;
+
+namespace stoc_corefl
+{
+
+// XIdlArray
+
+void ArrayIdlClassImpl::realloc( Any & rArray, sal_Int32 nLen )
+{
+    TypeClass eTC = rArray.getValueTypeClass();
+    if (eTC != TypeClass_SEQUENCE)
+    {
+        throw IllegalArgumentException(
+            "expected sequence, but found " + rArray.getValueType().getTypeName(),
+            getXWeak(), 0 );
+    }
+    if (nLen < 0)
+    {
+        throw IllegalArgumentException(
+            "negative length given!",
+            getXWeak(), 1 );
+    }
+
+    uno_Sequence ** ppSeq = const_cast<uno_Sequence **>(static_cast<uno_Sequence * const *>(rArray.getValue()));
+    uno_sequence_realloc( ppSeq, &getTypeDescr()->aBase,
+                          nLen,
+                          reinterpret_cast< uno_AcquireFunc >(cpp_acquire),
+                          reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+    rArray.pData = ppSeq;
+}
+
+sal_Int32 ArrayIdlClassImpl::getLen( const Any & rArray )
+{
+    TypeClass eTC = rArray.getValueTypeClass();
+    if (eTC != TypeClass_SEQUENCE)
+    {
+        throw IllegalArgumentException(
+            "expected sequence, but found " + rArray.getValueType().getTypeName(),
+            getXWeak(), 0 );
+    }
+
+    return (*static_cast<uno_Sequence * const *>(rArray.getValue()))->nElements;
+}
+
+Any ArrayIdlClassImpl::get( const Any & rArray, sal_Int32 nIndex )
+{
+    TypeClass eTC = rArray.getValueTypeClass();
+    if (eTC != TypeClass_SEQUENCE)
+    {
+        throw IllegalArgumentException(
+            "expected sequence, but found " + rArray.getValueType().getTypeName(),
+            getXWeak(), 0 );
+    }
+
+    uno_Sequence * pSeq = *static_cast<uno_Sequence * const *>(rArray.getValue());
+    if (pSeq->nElements <= nIndex)
+    {
+        throw ArrayIndexOutOfBoundsException(
+            "illegal index given, index " + OUString::number(nIndex) + " is < " + OUString::number(pSeq->nElements),
+            getXWeak() );
+    }
+
+    Any aRet;
+    typelib_TypeDescription * pElemTypeDescr = nullptr;
+    TYPELIB_DANGER_GET( &pElemTypeDescr, getTypeDescr()->pType );
+    uno_any_destruct( &aRet, reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+    uno_any_construct( &aRet, &pSeq->elements[nIndex * pElemTypeDescr->nSize],
+                       pElemTypeDescr,
+                       reinterpret_cast< uno_AcquireFunc >(cpp_acquire) );
+    TYPELIB_DANGER_RELEASE( pElemTypeDescr );
+    return aRet;
+}
+
+
+void ArrayIdlClassImpl::set( Any & rArray, sal_Int32 nIndex, const Any & rNewValue )
+{
+    TypeClass eTC = rArray.getValueTypeClass();
+    if (eTC != TypeClass_SEQUENCE)
+    {
+        throw IllegalArgumentException(
+            "expected sequence, but found " + rArray.getValueType().getTypeName(),
+            getXWeak(), 0 );
+    }
+
+    uno_Sequence * pSeq = *static_cast<uno_Sequence * const *>(rArray.getValue());
+    if (pSeq->nElements <= nIndex)
+    {
+        throw ArrayIndexOutOfBoundsException(
+            "illegal index given, index " + OUString::number(nIndex) + " is < " + OUString::number(pSeq->nElements),
+            getXWeak() );
+    }
+
+    uno_Sequence ** ppSeq = const_cast<uno_Sequence **>(static_cast<uno_Sequence * const *>(rArray.getValue()));
+    uno_sequence_reference2One(
+        ppSeq, &getTypeDescr()->aBase,
+        reinterpret_cast< uno_AcquireFunc >(cpp_acquire),
+        reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+    rArray.pData = ppSeq;
+    pSeq = *ppSeq;
+
+    typelib_TypeDescription * pElemTypeDescr = nullptr;
+    TYPELIB_DANGER_GET( &pElemTypeDescr, getTypeDescr()->pType );
+
+    if (! coerce_assign( &pSeq->elements[nIndex * pElemTypeDescr->nSize],
+                         pElemTypeDescr, rNewValue, getReflection() ))
+    {
+        TYPELIB_DANGER_RELEASE( pElemTypeDescr );
+        throw IllegalArgumentException(
+            "sequence element is not assignable by given value!",
+            getXWeak(), 2 );
+    }
+    TYPELIB_DANGER_RELEASE( pElemTypeDescr );
+}
+
+// ArrayIdlClassImpl
+
+sal_Bool ArrayIdlClassImpl::isAssignableFrom( const Reference< XIdlClass > & xType )
+{
+    return (xType.is() &&
+            (equals( xType ) ||
+             (xType->getTypeClass() == getTypeClass() && // must be sequence|array
+              getComponentType()->isAssignableFrom( xType->getComponentType() ))));
+}
+
+Reference< XIdlClass > ArrayIdlClassImpl::getComponentType()
+{
+    return getReflection()->forType( getTypeDescr()->pType );
+}
+
+Reference< XIdlArray > ArrayIdlClassImpl::getArray()
+{
+    return this;
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/crbase.cxx b/stoc/source/corereflection/crbase.cxx
new file mode 100644
index 0000000000..439ee5b222
--- /dev/null
+++ b/stoc/source/corereflection/crbase.cxx
@@ -0,0 +1,250 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <uno/any2.h>
+
+#include <utility>
+
+#include "base.hxx"
+
+using namespace css::reflection;
+using namespace css::uno;
+
+namespace stoc_corefl
+{
+
+#ifdef TEST_LIST_CLASSES
+ClassNameVector g_aClassNames;
+#endif
+
+
+::osl::Mutex & getMutexAccess()
+{
+    static osl::Mutex s_aMutex;
+
+    return s_aMutex;
+}
+
+
+IdlClassImpl::IdlClassImpl( IdlReflectionServiceImpl * pReflection,
+                            OUString aName, typelib_TypeClass eTypeClass,
+                            typelib_TypeDescription * pTypeDescr )
+    : m_xReflection( pReflection )
+    , _aName(std::move( aName ))
+    , _eTypeClass( static_cast<TypeClass>(eTypeClass) )
+    , _pTypeDescr( pTypeDescr )
+{
+    if (_pTypeDescr)
+    {
+        typelib_typedescription_acquire( _pTypeDescr );
+        if (! _pTypeDescr->bComplete)
+            typelib_typedescription_complete( &_pTypeDescr );
+    }
+
+#ifdef TEST_LIST_CLASSES
+    ClassNameVector::const_iterator iFind( std::find( g_aClassNames.begin(), g_aClassNames.end(), _aName ) );
+    OSL_ENSURE( iFind == g_aClassNames.end(), "### idl class already exists!" );
+    g_aClassNames.insert(g_aClassNames.begin(), _aName);
+#endif
+}
+
+IdlClassImpl::~IdlClassImpl()
+{
+    if (_pTypeDescr)
+        typelib_typedescription_release( _pTypeDescr );
+    m_xReflection.clear();
+
+#ifdef TEST_LIST_CLASSES
+    ClassNameVector::iterator iFind( std::find( g_aClassNames.begin(), g_aClassNames.end(), _aName ) );
+    OSL_ENSURE( iFind != g_aClassNames.end(), "### idl class does not exist!" );
+    g_aClassNames.erase( iFind );
+#endif
+}
+
+// XIdlClassImpl default implementation
+
+TypeClass IdlClassImpl::getTypeClass()
+{
+    return _eTypeClass;
+}
+
+OUString IdlClassImpl::getName()
+{
+    return _aName;
+}
+
+sal_Bool IdlClassImpl::equals( const Reference< XIdlClass >& xType )
+{
+    return (xType.is() &&
+            (xType->getTypeClass() == _eTypeClass) && (xType->getName() == _aName));
+}
+
+const bool s_aAssignableFromTab[11][11] =
+{
+                         /* from  CH,    BO,    BY,    SH,    US,    LO,    UL,    HY,    UH,    FL,    DO */
+/* TypeClass_CHAR */            { true,  false, false, false, false, false, false, false, false, false, false },
+/* TypeClass_BOOLEAN */         { false, true,  false, false, false, false, false, false, false, false, false },
+/* TypeClass_BYTE */            { false, false, true,  false, false, false, false, false, false, false, false },
+/* TypeClass_SHORT */           { false, false, true,  true,  true,  false, false, false, false, false, false },
+/* TypeClass_UNSIGNED_SHORT */  { false, false, true,  true,  true,  false, false, false, false, false, false },
+/* TypeClass_LONG */            { false, false, true,  true,  true,  true,  true,  false, false, false, false },
+/* TypeClass_UNSIGNED_LONG */   { false, false, true,  true,  true,  true,  true,  false, false, false, false },
+/* TypeClass_HYPER */           { false, false, true,  true,  true,  true,  true,  true,  true,  false, false },
+/* TypeClass_UNSIGNED_HYPER */  { false, false, true,  true,  true,  true,  true,  true,  true,  false, false },
+/* TypeClass_FLOAT */           { false, false, true,  true,  true,  true,  true,  true,  true,  true,  false },
+/* TypeClass_DOUBLE */          { false, false, true,  true,  true,  true,  true,  true,  true,  true,  true  }
+};
+
+sal_Bool IdlClassImpl::isAssignableFrom( const Reference< XIdlClass > & xType )
+{
+    TypeClass eAssign = getTypeClass();
+    if (equals( xType ) || eAssign == TypeClass_ANY) // default shot
+    {
+        return true;
+    }
+    else
+    {
+        TypeClass eFrom   = xType->getTypeClass();
+        if (eAssign > TypeClass_VOID && eAssign < TypeClass_STRING &&
+            eFrom > TypeClass_VOID && eFrom < TypeClass_STRING)
+        {
+            return s_aAssignableFromTab[static_cast<int>(eAssign)-1][static_cast<int>(eFrom)-1];
+        }
+    }
+    return false;
+}
+
+void IdlClassImpl::createObject( Any & rObj )
+{
+    rObj.clear();
+    uno_any_destruct( &rObj, reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+    uno_any_construct( &rObj, nullptr, getTypeDescr(), nullptr );
+}
+
+// what TODO ????
+
+Sequence< Reference< XIdlClass > > IdlClassImpl::getClasses()
+{
+    OSL_FAIL( "### unexpected use!" );
+    return Sequence< Reference< XIdlClass > >();
+}
+
+Reference< XIdlClass > IdlClassImpl::getClass( const OUString & )
+{
+    OSL_FAIL( "### unexpected use!" );
+    return Reference< XIdlClass >();
+}
+
+Sequence< Reference< XIdlClass > > IdlClassImpl::getInterfaces()
+{
+//      OSL_FAIL( "### unexpected use!" );
+    return Sequence< Reference< XIdlClass > >();
+}
+
+// structs, interfaces
+
+Sequence< Reference< XIdlClass > > IdlClassImpl::getSuperclasses()
+{
+    return Sequence< Reference< XIdlClass > >();
+}
+// structs
+
+Reference< XIdlField > IdlClassImpl::getField( const OUString & )
+{
+    return Reference< XIdlField >();
+}
+
+Sequence< Reference< XIdlField > > IdlClassImpl::getFields()
+{
+    return Sequence< Reference< XIdlField > >();
+}
+// interfaces
+
+Uik IdlClassImpl::getUik()
+{
+    return Uik();
+}
+
+Reference< XIdlMethod > IdlClassImpl::getMethod( const OUString & )
+{
+    return Reference< XIdlMethod >();
+}
+
+Sequence< Reference< XIdlMethod > > IdlClassImpl::getMethods()
+{
+    return Sequence< Reference< XIdlMethod > >();
+}
+// array
+
+Reference< XIdlClass > IdlClassImpl::getComponentType()
+{
+    return Reference< XIdlClass >();
+}
+
+Reference< XIdlArray > IdlClassImpl::getArray()
+{
+    return Reference< XIdlArray >();
+}
+
+
+IdlMemberImpl::IdlMemberImpl( IdlReflectionServiceImpl * pReflection, OUString aName,
+                              typelib_TypeDescription * pTypeDescr,
+                              typelib_TypeDescription * pDeclTypeDescr )
+    : m_xReflection( pReflection )
+    , _aName(std::move( aName ))
+    , _pTypeDescr( pTypeDescr )
+    , _pDeclTypeDescr( pDeclTypeDescr )
+{
+    typelib_typedescription_acquire( _pTypeDescr );
+    if (! _pTypeDescr->bComplete)
+        typelib_typedescription_complete( &_pTypeDescr );
+    typelib_typedescription_acquire( _pDeclTypeDescr );
+    if (! _pDeclTypeDescr->bComplete)
+        typelib_typedescription_complete( &_pDeclTypeDescr );
+}
+
+IdlMemberImpl::~IdlMemberImpl()
+{
+    typelib_typedescription_release( _pDeclTypeDescr );
+    typelib_typedescription_release( _pTypeDescr );
+}
+
+// XIdlMember
+
+Reference< XIdlClass > IdlMemberImpl::getDeclaringClass()
+{
+    if (! _xDeclClass.is())
+    {
+        Reference< XIdlClass > xDeclClass( getReflection()->forType( getDeclTypeDescr() ) );
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! _xDeclClass.is())
+            _xDeclClass = xDeclClass;
+    }
+    return _xDeclClass;
+}
+
+OUString IdlMemberImpl::getName()
+{
+    return _aName;
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/crcomp.cxx b/stoc/source/corereflection/crcomp.cxx
new file mode 100644
index 0000000000..b1143e158b
--- /dev/null
+++ b/stoc/source/corereflection/crcomp.cxx
@@ -0,0 +1,310 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/typeprovider.hxx>
+
+#include <com/sun/star/reflection/XIdlField.hpp>
+#include <com/sun/star/reflection/XIdlField2.hpp>
+#include <com/sun/star/uno/TypeClass.hpp>
+
+#include "base.hxx"
+
+using namespace css::lang;
+using namespace css::reflection;
+using namespace css::uno;
+
+namespace stoc_corefl
+{
+
+namespace {
+
+typedef cppu::ImplInheritanceHelper<IdlMemberImpl, XIdlField, XIdlField2> IdlCompFieldImpl_Base;
+class IdlCompFieldImpl : public IdlCompFieldImpl_Base
+{
+    sal_Int32                   _nOffset;
+
+public:
+    IdlCompFieldImpl( IdlReflectionServiceImpl * pReflection, const OUString & rName,
+                      typelib_TypeDescription * pTypeDescr, typelib_TypeDescription * pDeclTypeDescr,
+                      sal_Int32 nOffset )
+        : IdlCompFieldImpl_Base( pReflection, rName, pTypeDescr, pDeclTypeDescr )
+        , _nOffset( nOffset )
+        {}
+
+    // XIdlMember
+    virtual Reference< XIdlClass > SAL_CALL getDeclaringClass() override;
+    virtual OUString SAL_CALL getName() override;
+    // XIdlField
+    virtual Reference< XIdlClass > SAL_CALL getType() override;
+    virtual FieldAccessMode SAL_CALL getAccessMode() override;
+    virtual Any SAL_CALL get( const Any & rObj ) override;
+    virtual void SAL_CALL set( const Any & rObj, const Any & rValue ) override;
+    // XIdlField2: getType, getAccessMode and get are equal to XIdlField
+    virtual void SAL_CALL set( Any & rObj, const Any & rValue ) override;
+};
+
+}
+
+// XIdlMember
+
+Reference< XIdlClass > IdlCompFieldImpl::getDeclaringClass()
+{
+    if (! _xDeclClass.is())
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! _xDeclClass.is())
+        {
+            typelib_CompoundTypeDescription * pTD =
+                reinterpret_cast<typelib_CompoundTypeDescription *>(getDeclTypeDescr());
+            while (pTD)
+            {
+                typelib_TypeDescriptionReference ** ppTypeRefs = pTD->ppTypeRefs;
+                for ( sal_Int32 nPos = pTD->nMembers; nPos--; )
+                {
+                    if (td_equals( getTypeDescr(), ppTypeRefs[nPos] ))
+                    {
+                        _xDeclClass = getReflection()->forType( &pTD->aBase );
+                        return _xDeclClass;
+                    }
+                }
+                pTD = pTD->pBaseTypeDescription;
+            }
+        }
+    }
+    return _xDeclClass;
+}
+
+OUString IdlCompFieldImpl::getName()
+{
+    return IdlMemberImpl::getName();
+}
+
+// XIdlField
+
+Reference< XIdlClass > IdlCompFieldImpl::getType()
+{
+    return getReflection()->forType( getTypeDescr() );
+}
+
+FieldAccessMode IdlCompFieldImpl::getAccessMode()
+{
+    return FieldAccessMode_READWRITE;
+}
+
+Any IdlCompFieldImpl::get( const Any & rObj )
+{
+    if (rObj.getValueTypeClass() == css::uno::TypeClass_STRUCT ||
+        rObj.getValueTypeClass() == css::uno::TypeClass_EXCEPTION)
+    {
+        typelib_TypeDescription * pObjTD = nullptr;
+        TYPELIB_DANGER_GET( &pObjTD, rObj.getValueTypeRef() );
+
+        typelib_TypeDescription * pTD = pObjTD;
+        typelib_TypeDescription * pDeclTD = getDeclTypeDescr();
+        while (pTD && !typelib_typedescription_equals( pTD, pDeclTD ))
+            pTD = &reinterpret_cast<typelib_CompoundTypeDescription *>(pTD)->pBaseTypeDescription->aBase;
+
+        OSL_ENSURE( pTD, "### illegal object type!" );
+        if (pTD)
+        {
+            TYPELIB_DANGER_RELEASE( pObjTD );
+            Any aRet;
+            uno_any_destruct(
+                &aRet, reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+            uno_any_construct(
+                &aRet, const_cast<char *>(static_cast<char const *>(rObj.getValue()) + _nOffset), getTypeDescr(),
+                reinterpret_cast< uno_AcquireFunc >(cpp_acquire) );
+            return aRet;
+        }
+        TYPELIB_DANGER_RELEASE( pObjTD );
+    }
+    throw IllegalArgumentException(
+        "expected struct or exception, got " + rObj.getValueType().getTypeName(),
+        getXWeak(), 0 );
+}
+
+void IdlCompFieldImpl::set( const Any & rObj, const Any & rValue )
+{
+    if (rObj.getValueTypeClass() == css::uno::TypeClass_STRUCT ||
+        rObj.getValueTypeClass() == css::uno::TypeClass_EXCEPTION)
+    {
+        typelib_TypeDescription * pObjTD = nullptr;
+        TYPELIB_DANGER_GET( &pObjTD, rObj.getValueTypeRef() );
+
+        typelib_TypeDescription * pTD = pObjTD;
+        typelib_TypeDescription * pDeclTD = getDeclTypeDescr();
+        while (pTD && !typelib_typedescription_equals( pTD, pDeclTD ))
+            pTD = &reinterpret_cast<typelib_CompoundTypeDescription *>(pTD)->pBaseTypeDescription->aBase;
+
+        OSL_ENSURE( pTD, "### illegal object type!" );
+        if (pTD)
+        {
+            TYPELIB_DANGER_RELEASE( pObjTD );
+            if (!coerce_assign( const_cast<char *>(static_cast<char const *>(rObj.getValue()) + _nOffset), getTypeDescr(), rValue, getReflection() ))
+            {
+                throw IllegalArgumentException(
+                    "cannot assign value to destination",
+                    getXWeak(), 1 );
+            }
+            return;
+        }
+        TYPELIB_DANGER_RELEASE( pObjTD );
+    }
+    throw IllegalArgumentException(
+        "expected struct or exception, got " + rObj.getValueType().getTypeName(),
+        getXWeak(), 0 );
+}
+
+
+void IdlCompFieldImpl::set( Any & rObj, const Any & rValue )
+{
+    if (rObj.getValueTypeClass() == css::uno::TypeClass_STRUCT ||
+        rObj.getValueTypeClass() == css::uno::TypeClass_EXCEPTION)
+    {
+        typelib_TypeDescription * pObjTD = nullptr;
+        TYPELIB_DANGER_GET( &pObjTD, rObj.getValueTypeRef() );
+
+        typelib_TypeDescription * pTD = pObjTD;
+        typelib_TypeDescription * pDeclTD = getDeclTypeDescr();
+        while (pTD && !typelib_typedescription_equals( pTD, pDeclTD ))
+            pTD = &reinterpret_cast<typelib_CompoundTypeDescription *>(pTD)->pBaseTypeDescription->aBase;
+
+        OSL_ENSURE( pTD, "### illegal object type!" );
+        if (pTD)
+        {
+            TYPELIB_DANGER_RELEASE( pObjTD );
+            if (!coerce_assign( const_cast<char *>(static_cast<char const *>(rObj.getValue()) + _nOffset), getTypeDescr(), rValue, getReflection() ))
+            {
+                throw IllegalArgumentException(
+                    "cannot assign to destination",
+                    getXWeak(), 1 );
+            }
+            return;
+        }
+        TYPELIB_DANGER_RELEASE( pObjTD );
+    }
+    throw IllegalArgumentException(
+        "expected struct or exception, got " + rObj.getValueType().getTypeName(),
+        getXWeak(), 0 );
+}
+
+
+CompoundIdlClassImpl::~CompoundIdlClassImpl()
+{
+}
+
+
+sal_Bool CompoundIdlClassImpl::isAssignableFrom( const Reference< XIdlClass > & xType )
+{
+    if (xType.is())
+    {
+        TypeClass eTC = xType->getTypeClass();
+        if (eTC == TypeClass_STRUCT || eTC == TypeClass_EXCEPTION)
+        {
+            if (equals( xType ))
+                return true;
+            else
+            {
+                const Sequence< Reference< XIdlClass > > & rSeq = xType->getSuperclasses();
+                if (rSeq.hasElements())
+                {
+                    OSL_ENSURE( rSeq.getLength() == 1, "### unexpected len of super classes!" );
+                    return isAssignableFrom( rSeq[0] );
+                }
+            }
+        }
+    }
+    return false;
+}
+
+Sequence< Reference< XIdlClass > > CompoundIdlClassImpl::getSuperclasses()
+{
+    if (! _xSuperClass.is())
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! _xSuperClass.is())
+        {
+            typelib_CompoundTypeDescription * pCompTypeDescr = getTypeDescr()->pBaseTypeDescription;
+            if (pCompTypeDescr)
+                _xSuperClass = getReflection()->forType( &pCompTypeDescr->aBase );
+        }
+    }
+    if (_xSuperClass.is())
+        return Sequence< Reference< XIdlClass > >( &_xSuperClass, 1 );
+    else
+        return Sequence< Reference< XIdlClass > >();
+}
+
+Reference< XIdlField > CompoundIdlClassImpl::getField( const OUString & rName )
+{
+    if (! m_xFields)
+        getFields(); // init fields
+
+    const OUString2Field::const_iterator iFind( _aName2Field.find( rName ) );
+    if (iFind != _aName2Field.end())
+        return Reference< XIdlField >( (*iFind).second );
+    else
+        return Reference< XIdlField >();
+}
+
+Sequence< Reference< XIdlField > > CompoundIdlClassImpl::getFields()
+{
+    ::osl::MutexGuard aGuard( getMutexAccess() );
+    if (! m_xFields)
+    {
+        sal_Int32 nAll = 0;
+        typelib_CompoundTypeDescription * pCompTypeDescr = getTypeDescr();
+        for ( ; pCompTypeDescr; pCompTypeDescr = pCompTypeDescr->pBaseTypeDescription )
+            nAll += pCompTypeDescr->nMembers;
+
+        Sequence< Reference< XIdlField > > aFields( nAll );
+        Reference< XIdlField > * pSeq = aFields.getArray();
+
+        for ( pCompTypeDescr = getTypeDescr(); pCompTypeDescr;
+              pCompTypeDescr = pCompTypeDescr->pBaseTypeDescription )
+        {
+            typelib_TypeDescriptionReference ** ppTypeRefs = pCompTypeDescr->ppTypeRefs;
+            rtl_uString ** ppNames                         = pCompTypeDescr->ppMemberNames;
+            sal_Int32 * pMemberOffsets                     = pCompTypeDescr->pMemberOffsets;
+
+            for ( sal_Int32 nPos = pCompTypeDescr->nMembers; nPos--; )
+            {
+                typelib_TypeDescription * pTD = nullptr;
+                TYPELIB_DANGER_GET( &pTD, ppTypeRefs[nPos] );
+                OSL_ENSURE( pTD, "### cannot get field in struct!" );
+                if (pTD)
+                {
+                    OUString aName( ppNames[nPos] );
+                    _aName2Field[aName] = pSeq[--nAll] = new IdlCompFieldImpl(
+                        getReflection(), aName, pTD, IdlClassImpl::getTypeDescr(), pMemberOffsets[nPos] );
+                    TYPELIB_DANGER_RELEASE( pTD );
+                }
+            }
+        }
+
+        m_xFields = std::move( aFields );
+    }
+    return *m_xFields;
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/crefl.cxx b/stoc/source/corereflection/crefl.cxx
new file mode 100644
index 0000000000..1f4562181a
--- /dev/null
+++ b/stoc/source/corereflection/crefl.cxx
@@ -0,0 +1,333 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/typeprovider.hxx>
+#include <sal/log.hxx>
+
+#include <com/sun/star/reflection/XConstantTypeDescription.hpp>
+#include <com/sun/star/reflection/XTypeDescription.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <o3tl/any.hxx>
+#include <uno/lbnames.h>
+#include "base.hxx"
+
+using namespace css;
+using namespace css::uno;
+using namespace css::lang;
+using namespace css::reflection;
+using namespace cppu;
+using namespace osl;
+
+namespace stoc_corefl
+{
+
+IdlReflectionServiceImpl::IdlReflectionServiceImpl(
+    const Reference< XComponentContext > & xContext )
+    : WeakComponentImplHelper( _aComponentMutex )
+{
+    xContext->getValueByName(
+        "/singletons/com.sun.star.reflection.theTypeDescriptionManager" ) >>= _xTDMgr;
+    OSL_ENSURE( _xTDMgr.is(), "### cannot get singleton \"TypeDescriptionManager\" from context!" );
+}
+
+IdlReflectionServiceImpl::~IdlReflectionServiceImpl() {}
+
+// XComponent
+
+void IdlReflectionServiceImpl::disposing()
+{
+    MutexGuard aGuard( _aComponentMutex );
+    _aElements.clear();
+#ifdef TEST_LIST_CLASSES
+    OSL_ENSURE( g_aClassNames.empty(), "### idl classes still alive!" );
+    for (auto const& className : g_aClassNames)
+    {
+        OUString aName(className);
+    }
+#endif
+}
+
+// XServiceInfo
+
+OUString IdlReflectionServiceImpl::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.CoreReflection";
+}
+
+sal_Bool IdlReflectionServiceImpl::supportsService( const OUString & rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > IdlReflectionServiceImpl::getSupportedServiceNames()
+{
+    Sequence< OUString > seqNames { "com.sun.star.reflection.CoreReflection" };
+    return seqNames;
+}
+
+// XIdlReflection
+
+Reference< XIdlClass > IdlReflectionServiceImpl::getType( const Any & rObj )
+{
+    return (rObj.hasValue() ? forType( rObj.getValueTypeRef() ) : Reference< XIdlClass >());
+}
+
+
+inline Reference< XIdlClass > IdlReflectionServiceImpl::constructClass(
+    typelib_TypeDescription * pTypeDescr )
+{
+    OSL_ENSURE( pTypeDescr->eTypeClass != typelib_TypeClass_TYPEDEF, "### unexpected typedef!" );
+
+    switch (pTypeDescr->eTypeClass)
+    {
+    case typelib_TypeClass_VOID:
+    case typelib_TypeClass_CHAR:
+    case typelib_TypeClass_BOOLEAN:
+    case typelib_TypeClass_BYTE:
+    case typelib_TypeClass_SHORT:
+    case typelib_TypeClass_UNSIGNED_SHORT:
+    case typelib_TypeClass_LONG:
+    case typelib_TypeClass_UNSIGNED_LONG:
+    case typelib_TypeClass_HYPER:
+    case typelib_TypeClass_UNSIGNED_HYPER:
+    case typelib_TypeClass_FLOAT:
+    case typelib_TypeClass_DOUBLE:
+    case typelib_TypeClass_STRING:
+    case typelib_TypeClass_ANY:
+        return new IdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    case typelib_TypeClass_ENUM:
+        return new EnumIdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    case typelib_TypeClass_STRUCT:
+    case typelib_TypeClass_EXCEPTION:
+        return new CompoundIdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    case typelib_TypeClass_SEQUENCE:
+        return new ArrayIdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    case typelib_TypeClass_INTERFACE:
+        return new InterfaceIdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    case typelib_TypeClass_TYPE:
+        return new IdlClassImpl( this, pTypeDescr->pTypeName, pTypeDescr->eTypeClass, pTypeDescr );
+
+    default:
+        SAL_INFO("stoc", "corereflection type unsupported: " << pTypeDescr->pTypeName);
+        return Reference< XIdlClass >();
+    }
+}
+
+Reference< XIdlClass > IdlReflectionServiceImpl::forName( const OUString & rTypeName )
+{
+    Reference< XIdlClass > xRet;
+    Any aAny( _aElements.getValue( rTypeName ) );
+
+    if (aAny.hasValue())
+    {
+        aAny >>= xRet;
+    }
+    else
+    {
+        // try to get _type_ by name
+        typelib_TypeDescription * pTD = nullptr;
+        typelib_typedescription_getByName( &pTD, rTypeName.pData );
+        if (pTD)
+        {
+            xRet = constructClass( pTD );
+            if (xRet.is())
+                _aElements.setValue( rTypeName, Any( xRet ) ); // update
+            typelib_typedescription_release( pTD );
+        }
+    }
+
+    return xRet;
+}
+
+// XHierarchicalNameAccess
+
+Any IdlReflectionServiceImpl::getByHierarchicalName( const OUString & rName )
+{
+    Any aRet( _aElements.getValue( rName ) );
+    if (! aRet.hasValue())
+    {
+        aRet = _xTDMgr->getByHierarchicalName( rName );
+        if (aRet.getValueTypeClass() == TypeClass_INTERFACE)
+        {
+            // type retrieved from tdmgr
+            OSL_ASSERT( (*o3tl::forceAccess<Reference<XInterface>>(aRet))->queryInterface(
+                cppu::UnoType<XTypeDescription>::get()).hasValue() );
+
+            css::uno::Reference< css::reflection::XConstantTypeDescription >
+                ctd;
+            if (aRet >>= ctd)
+            {
+                aRet = ctd->getConstantValue();
+            }
+            else
+            {
+                // if you are interested in a type then CALL forName()!!!
+                // this way is NOT recommended for types, because this method looks for constants first
+
+                // if td manager found some type, it will be in the cache (hopefully... we just got it)
+                // so the second retrieving via c typelib callback chain should succeed...
+
+                // try to get _type_ by name
+                typelib_TypeDescription * pTD = nullptr;
+                typelib_typedescription_getByName( &pTD, rName.pData );
+
+                aRet.clear(); // kick XTypeDescription interface
+
+                if (pTD)
+                {
+                    Reference< XIdlClass > xIdlClass( constructClass( pTD ) );
+                    aRet.setValue( &xIdlClass, cppu::UnoType<XIdlClass>::get());
+                    typelib_typedescription_release( pTD );
+                }
+            }
+        }
+        // else is enum member(?)
+
+        // update
+        if (!aRet.hasValue())
+            throw container::NoSuchElementException( rName );
+
+        _aElements.setValue( rName, aRet );
+    }
+    return aRet;
+}
+
+sal_Bool IdlReflectionServiceImpl::hasByHierarchicalName( const OUString & rName )
+{
+    try
+    {
+        return getByHierarchicalName( rName ).hasValue();
+    }
+    catch (container::NoSuchElementException &)
+    {
+    }
+    return false;
+}
+
+
+Reference< XIdlClass > IdlReflectionServiceImpl::forType( typelib_TypeDescription * pTypeDescr )
+{
+    Reference< XIdlClass > xRet;
+    OUString aName( pTypeDescr->pTypeName );
+    Any aAny( _aElements.getValue( aName ) );
+
+    if (aAny.hasValue())
+    {
+        aAny >>= xRet;
+    }
+    else
+    {
+        xRet = constructClass( pTypeDescr );
+        if (xRet.is())
+            _aElements.setValue( aName, Any( xRet ) ); // update
+    }
+
+    return xRet;
+}
+
+Reference< XIdlClass > IdlReflectionServiceImpl::forType( typelib_TypeDescriptionReference * pRef )
+{
+    typelib_TypeDescription * pTD = nullptr;
+    TYPELIB_DANGER_GET( &pTD, pRef );
+    if (pTD)
+    {
+        Reference< XIdlClass > xRet = forType( pTD );
+        TYPELIB_DANGER_RELEASE( pTD );
+        return xRet;
+    }
+    throw RuntimeException(
+        "IdlReflectionServiceImpl::forType() failed!",
+        getXWeak() );
+}
+
+
+const Mapping & IdlReflectionServiceImpl::getCpp2Uno()
+{
+    if (! _aCpp2Uno.is())
+    {
+        MutexGuard aGuard( getMutexAccess() );
+        if (! _aCpp2Uno.is())
+        {
+            _aCpp2Uno = Mapping( CPPU_CURRENT_LANGUAGE_BINDING_NAME, UNO_LB_UNO );
+            OSL_ENSURE( _aCpp2Uno.is(), "### cannot get c++ to uno mapping!" );
+            if (! _aCpp2Uno.is())
+            {
+                throw RuntimeException(
+                    "cannot get c++ to uno mapping!",
+                    getXWeak() );
+            }
+        }
+    }
+    return _aCpp2Uno;
+}
+
+const Mapping & IdlReflectionServiceImpl::getUno2Cpp()
+{
+    if (! _aUno2Cpp.is())
+    {
+        MutexGuard aGuard( getMutexAccess() );
+        if (! _aUno2Cpp.is())
+        {
+            _aUno2Cpp = Mapping( UNO_LB_UNO, CPPU_CURRENT_LANGUAGE_BINDING_NAME );
+            OSL_ENSURE( _aUno2Cpp.is(), "### cannot get uno to c++ mapping!" );
+            if (! _aUno2Cpp.is())
+            {
+                throw RuntimeException(
+                    "cannot get uno to c++ mapping!",
+                    getXWeak() );
+            }
+        }
+    }
+    return _aUno2Cpp;
+}
+
+uno_Interface * IdlReflectionServiceImpl::mapToUno(
+    const Any & rObj, typelib_InterfaceTypeDescription * pTo )
+{
+    Reference< XInterface > xObj;
+    if (extract( rObj, pTo, xObj, this ))
+        return static_cast<uno_Interface *>(getCpp2Uno().mapInterface( xObj.get(), pTo ));
+
+    throw RuntimeException(
+        "illegal object given!",
+        getXWeak() );
+}
+
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_CoreReflection_get_implementation(
+    css::uno::XComponentContext * context,
+    css::uno::Sequence<css::uno::Any> const & arguments)
+{
+    SAL_WARN_IF(
+        arguments.hasElements(), "stoc", "unexpected singleton arguments");
+    return cppu::acquire(new stoc_corefl::IdlReflectionServiceImpl(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/crenum.cxx b/stoc/source/corereflection/crenum.cxx
new file mode 100644
index 0000000000..2cb07c9b5e
--- /dev/null
+++ b/stoc/source/corereflection/crenum.cxx
@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "base.hxx"
+
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/typeprovider.hxx>
+
+#include <com/sun/star/reflection/XIdlField2.hpp>
+
+using namespace css::lang;
+using namespace css::reflection;
+using namespace css::uno;
+
+namespace stoc_corefl
+{
+
+namespace {
+
+typedef cppu::ImplInheritanceHelper<IdlMemberImpl, XIdlField, XIdlField2> IdlEnumFieldImpl_Base;
+class IdlEnumFieldImpl : public IdlEnumFieldImpl_Base
+{
+    sal_Int32               _nValue;
+
+public:
+    IdlEnumFieldImpl( IdlReflectionServiceImpl * pReflection, const OUString & rName,
+                      typelib_TypeDescription * pTypeDescr, sal_Int32 nValue )
+        : IdlEnumFieldImpl_Base( pReflection, rName, pTypeDescr, pTypeDescr )
+        , _nValue( nValue )
+        {}
+
+    // XIdlMember
+    virtual Reference< XIdlClass > SAL_CALL getDeclaringClass() override;
+    virtual OUString SAL_CALL getName() override;
+    // XIdlField
+    virtual Reference< XIdlClass > SAL_CALL getType() override;
+    virtual FieldAccessMode SAL_CALL getAccessMode() override;
+    virtual Any SAL_CALL get( const Any & rObj ) override;
+    virtual void SAL_CALL set( const Any & rObj, const Any & rValue ) override;
+    // XIdlField2: getType, getAccessMode and get are equal to XIdlField
+    virtual void SAL_CALL set( Any & rObj, const Any & rValue ) override;
+};
+
+}
+
+// XIdlMember
+
+Reference< XIdlClass > IdlEnumFieldImpl::getDeclaringClass()
+{
+    return IdlMemberImpl::getDeclaringClass();
+}
+
+OUString IdlEnumFieldImpl::getName()
+{
+    return IdlMemberImpl::getName();
+}
+
+// XIdlField
+
+Reference< XIdlClass > IdlEnumFieldImpl::getType()
+{
+    return getDeclaringClass();
+}
+
+FieldAccessMode IdlEnumFieldImpl::getAccessMode()
+{
+    return FieldAccessMode_READONLY;
+}
+
+Any IdlEnumFieldImpl::get( const Any & )
+{
+    return Any( &_nValue, getTypeDescr() );
+}
+
+void IdlEnumFieldImpl::set( const Any &, const Any & )
+{
+    throw IllegalAccessException(
+        "cannot set enum field, it is constant",
+        getXWeak() );
+}
+
+void IdlEnumFieldImpl::set( Any &, const Any & )
+{
+    throw IllegalAccessException(
+        "cannot set enum field, it is constant",
+        getXWeak() );
+}
+
+
+EnumIdlClassImpl::~EnumIdlClassImpl()
+{
+}
+
+// IdlClassImpl modifications
+
+Reference< XIdlField > EnumIdlClassImpl::getField( const OUString & rName )
+{
+    if (! m_xFields)
+        getFields(); // init members
+
+    const OUString2Field::const_iterator iFind( _aName2Field.find( rName ) );
+    if (iFind != _aName2Field.end())
+        return (*iFind).second;
+    else
+        return Reference< XIdlField >();
+}
+
+Sequence< Reference< XIdlField > > EnumIdlClassImpl::getFields()
+{
+    if (! m_xFields)
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! m_xFields)
+        {
+            sal_Int32 nFields = getTypeDescr()->nEnumValues;
+            Sequence< Reference< XIdlField > > aFields( nFields );
+            Reference< XIdlField > * pSeq = aFields.getArray();
+
+            while (nFields--)
+            {
+                OUString aName( getTypeDescr()->ppEnumNames[nFields] );
+                _aName2Field[aName] = pSeq[nFields] = new IdlEnumFieldImpl(
+                    getReflection(), aName, IdlClassImpl::getTypeDescr(), getTypeDescr()->pEnumValues[nFields] );
+            }
+
+            m_xFields =  std::move( aFields );
+        }
+    }
+    return *m_xFields;
+}
+
+void EnumIdlClassImpl::createObject( Any & rObj )
+{
+    sal_Int32 eVal =
+        reinterpret_cast<typelib_EnumTypeDescription *>(IdlClassImpl::getTypeDescr())->nDefaultEnumValue;
+    rObj.setValue( &eVal, IdlClassImpl::getTypeDescr() );
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/criface.cxx b/stoc/source/corereflection/criface.cxx
new file mode 100644
index 0000000000..23d3d9bae2
--- /dev/null
+++ b/stoc/source/corereflection/criface.cxx
@@ -0,0 +1,830 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <cstddef>
+#include <limits>
+
+#ifdef SAL_UNX
+#include <sal/alloca.h>
+#endif
+#include <o3tl/any.hxx>
+#include <typelib/typedescription.hxx>
+#include <uno/data.h>
+
+#include "base.hxx"
+
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/reflection/XIdlField2.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/typeprovider.hxx>
+
+using namespace css::lang;
+using namespace css::reflection;
+using namespace css::uno;
+
+namespace {
+
+std::size_t multipleOf16(std::size_t n) {
+    assert(n <= std::numeric_limits<std::size_t>::max() - 15);
+    return (n + 15) & ~std::size_t(15);
+}
+
+}
+
+namespace stoc_corefl
+{
+
+namespace {
+
+typedef cppu::ImplInheritanceHelper<IdlMemberImpl, XIdlField, XIdlField2> IdlAttributeFieldImpl_Base;
+class IdlAttributeFieldImpl : public IdlAttributeFieldImpl_Base
+{
+public:
+    typelib_InterfaceAttributeTypeDescription * getAttributeTypeDescr() const
+        { return reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>(getTypeDescr()); }
+
+    IdlAttributeFieldImpl( IdlReflectionServiceImpl * pReflection, const OUString & rName,
+                           typelib_TypeDescription * pTypeDescr, typelib_TypeDescription * pDeclTypeDescr )
+        : IdlAttributeFieldImpl_Base( pReflection, rName, pTypeDescr, pDeclTypeDescr )
+        {}
+
+    // XIdlMember
+    virtual Reference< XIdlClass > SAL_CALL getDeclaringClass() override;
+    virtual OUString SAL_CALL getName() override;
+    // XIdlField
+    virtual Reference< XIdlClass > SAL_CALL getType() override;
+    virtual FieldAccessMode SAL_CALL getAccessMode() override;
+    virtual Any SAL_CALL get( const Any & rObj ) override;
+    virtual void SAL_CALL set( const Any & rObj, const Any & rValue ) override;
+    // XIdlField2: getType, getAccessMode and get are equal to XIdlField
+    virtual void SAL_CALL set( Any & rObj, const Any & rValue ) override;
+
+private:
+    void checkException(
+        uno_Any * exception, Reference< XInterface > const & context) const;
+};
+
+}
+
+// XIdlMember
+
+Reference< XIdlClass > IdlAttributeFieldImpl::getDeclaringClass()
+{
+    if (! _xDeclClass.is())
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! _xDeclClass.is())
+        {
+            OUString aName(getAttributeTypeDescr()->aBase.aBase.pTypeName);
+            sal_Int32 i = aName.indexOf(':');
+            OSL_ASSERT(i >= 0);
+            _xDeclClass = getReflection()->forName(aName.copy(0, i));
+        }
+    }
+    return _xDeclClass;
+}
+
+OUString IdlAttributeFieldImpl::getName()
+{
+    return IdlMemberImpl::getName();
+}
+
+// XIdlField
+
+Reference< XIdlClass > IdlAttributeFieldImpl::getType()
+{
+    return getReflection()->forType(
+        getAttributeTypeDescr()->pAttributeTypeRef );
+}
+
+FieldAccessMode IdlAttributeFieldImpl::getAccessMode()
+{
+    return (getAttributeTypeDescr()->bReadOnly
+            ? FieldAccessMode_READONLY : FieldAccessMode_READWRITE);
+}
+
+Any IdlAttributeFieldImpl::get( const Any & rObj )
+{
+    uno_Interface * pUnoI = getReflection()->mapToUno(
+        rObj, reinterpret_cast<typelib_InterfaceTypeDescription *>(getDeclTypeDescr()) );
+    OSL_ENSURE( pUnoI, "### illegal destination object given!" );
+    if (pUnoI)
+    {
+        TypeDescription aTD( getAttributeTypeDescr()->pAttributeTypeRef );
+        typelib_TypeDescription * pTD = aTD.get();
+
+        uno_Any aExc;
+        uno_Any * pExc = &aExc;
+        void * pReturn = alloca( pTD->nSize );
+
+        (*pUnoI->pDispatcher)( pUnoI, getTypeDescr(), pReturn, nullptr, &pExc );
+        (*pUnoI->release)( pUnoI );
+
+        checkException(pExc, *o3tl::doAccess<Reference<XInterface>>(rObj));
+        Any aRet;
+        uno_any_destruct(
+            &aRet, reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+        uno_any_constructAndConvert( &aRet, pReturn, pTD, getReflection()->getUno2Cpp().get() );
+        uno_destructData( pReturn, pTD, nullptr );
+        return aRet;
+    }
+    throw IllegalArgumentException(
+        "illegal object given!",
+        getXWeak(), 0 );
+}
+
+void IdlAttributeFieldImpl::set( Any & rObj, const Any & rValue )
+{
+    if (getAttributeTypeDescr()->bReadOnly)
+    {
+        throw IllegalAccessException(
+            "cannot set readonly attribute!",
+            getXWeak() );
+    }
+
+    uno_Interface * pUnoI = getReflection()->mapToUno(
+        rObj, reinterpret_cast<typelib_InterfaceTypeDescription *>(getDeclTypeDescr()) );
+    OSL_ENSURE( pUnoI, "### illegal destination object given!" );
+    if (pUnoI)
+    {
+        TypeDescription aTD( getAttributeTypeDescr()->pAttributeTypeRef );
+        typelib_TypeDescription * pTD = aTD.get();
+
+        // construct uno value to be set
+        void * pArgs[1];
+        void * pArg = pArgs[0] = alloca( pTD->nSize );
+
+        bool bAssign;
+        if (pTD->eTypeClass == typelib_TypeClass_ANY)
+        {
+            uno_copyAndConvertData( pArg, const_cast< Any * >(&rValue),
+                                    pTD, getReflection()->getCpp2Uno().get() );
+            bAssign = true;
+        }
+        else if (typelib_typedescriptionreference_equals( rValue.getValueTypeRef(), pTD->pWeakRef ))
+        {
+            uno_copyAndConvertData( pArg, const_cast< void * >(rValue.getValue()),
+                                    pTD, getReflection()->getCpp2Uno().get() );
+            bAssign = true;
+        }
+        else if (pTD->eTypeClass == typelib_TypeClass_INTERFACE)
+        {
+            Reference< XInterface > xObj;
+            bAssign = extract(
+                rValue, reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD), xObj,
+                getReflection() );
+            if (bAssign)
+            {
+                *static_cast<void **>(pArg) = getReflection()->getCpp2Uno().mapInterface(
+                    xObj.get(), reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) );
+            }
+        }
+        else
+        {
+            typelib_TypeDescription * pValueTD = nullptr;
+            TYPELIB_DANGER_GET( &pValueTD, rValue.getValueTypeRef() );
+            // construct temp uno val to do proper assignment: todo opt
+            void * pTemp = alloca( pValueTD->nSize );
+            uno_copyAndConvertData(
+                pTemp, const_cast<void *>(rValue.getValue()), pValueTD, getReflection()->getCpp2Uno().get() );
+            uno_constructData(
+                pArg, pTD );
+            // assignment does simple conversion
+            bAssign = uno_assignData(
+                pArg, pTD, pTemp, pValueTD, nullptr, nullptr, nullptr );
+            uno_destructData(
+                pTemp, pValueTD, nullptr );
+            TYPELIB_DANGER_RELEASE( pValueTD );
+        }
+
+        if (bAssign)
+        {
+            uno_Any aExc;
+            uno_Any * pExc = &aExc;
+            (*pUnoI->pDispatcher)( pUnoI, getTypeDescr(), nullptr, pArgs, &pExc );
+            (*pUnoI->release)( pUnoI );
+
+            uno_destructData( pArg, pTD, nullptr );
+            checkException(pExc, *o3tl::doAccess<Reference<XInterface>>(rObj));
+            return;
+        }
+        (*pUnoI->release)( pUnoI );
+
+        throw IllegalArgumentException(
+            "illegal value given!",
+            *o3tl::doAccess<Reference<XInterface>>(rObj), 1 );
+    }
+    throw IllegalArgumentException(
+        "illegal destination object given!",
+        getXWeak(), 0 );
+}
+
+void IdlAttributeFieldImpl::set( const Any & rObj, const Any & rValue )
+{
+    IdlAttributeFieldImpl::set( const_cast< Any & >( rObj ), rValue );
+}
+
+void IdlAttributeFieldImpl::checkException(
+    uno_Any * exception, Reference< XInterface > const & context) const
+{
+    if (exception == nullptr)
+        return;
+
+    Any e;
+    uno_any_destruct(&e, reinterpret_cast< uno_ReleaseFunc >(cpp_release));
+    uno_type_any_constructAndConvert(
+        &e, exception->pData, exception->pType,
+        getReflection()->getUno2Cpp().get());
+    uno_any_destruct(exception, nullptr);
+    if (!e.isExtractableTo(
+            cppu::UnoType<RuntimeException>::get()))
+    {
+        throw WrappedTargetRuntimeException(
+            "non-RuntimeException occurred when accessing an"
+            " interface type attribute",
+            context, e);
+    }
+    cppu::throwException(e);
+}
+
+namespace {
+
+typedef cppu::ImplInheritanceHelper<IdlMemberImpl, XIdlMethod> IdlInterfaceMethodImpl_Base;
+class IdlInterfaceMethodImpl : public IdlInterfaceMethodImpl_Base
+{
+    std::optional<Sequence< Reference< XIdlClass > >>   m_xExceptionTypes;
+    std::optional<Sequence< Reference< XIdlClass > >>   m_xParamTypes;
+    std::optional<Sequence< ParamInfo >>                m_xParamInfos;
+
+public:
+    typelib_InterfaceMethodTypeDescription * getMethodTypeDescr() const
+        { return reinterpret_cast<typelib_InterfaceMethodTypeDescription *>(getTypeDescr()); }
+
+    IdlInterfaceMethodImpl( IdlReflectionServiceImpl * pReflection, const OUString & rName,
+                            typelib_TypeDescription * pTypeDescr, typelib_TypeDescription * pDeclTypeDescr )
+        : IdlInterfaceMethodImpl_Base( pReflection, rName, pTypeDescr, pDeclTypeDescr )
+        {}
+
+    // XTypeProvider
+    virtual Sequence< sal_Int8 > SAL_CALL getImplementationId() override;
+
+    // XIdlMember
+    virtual Reference< XIdlClass > SAL_CALL getDeclaringClass() override;
+    virtual OUString SAL_CALL getName() override;
+    // XIdlMethod
+    virtual Reference< XIdlClass > SAL_CALL getReturnType() override;
+    virtual Sequence< Reference< XIdlClass > > SAL_CALL getParameterTypes() override;
+    virtual Sequence< ParamInfo > SAL_CALL getParameterInfos() override;
+    virtual Sequence< Reference< XIdlClass > > SAL_CALL getExceptionTypes() override;
+    virtual MethodMode SAL_CALL getMode() override;
+    virtual Any SAL_CALL invoke( const Any & rObj, Sequence< Any > & rArgs ) override;
+};
+
+}
+
+// XTypeProvider
+
+Sequence< sal_Int8 > IdlInterfaceMethodImpl::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+// XIdlMember
+
+Reference< XIdlClass > IdlInterfaceMethodImpl::getDeclaringClass()
+{
+    if (! _xDeclClass.is())
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! _xDeclClass.is())
+        {
+            OUString aName(getMethodTypeDescr()->aBase.aBase.pTypeName);
+            sal_Int32 i = aName.indexOf(':');
+            OSL_ASSERT(i >= 0);
+            _xDeclClass = getReflection()->forName(aName.copy(0, i));
+        }
+    }
+    return _xDeclClass;
+}
+
+OUString IdlInterfaceMethodImpl::getName()
+{
+    return IdlMemberImpl::getName();
+}
+
+// XIdlMethod
+
+Reference< XIdlClass > SAL_CALL IdlInterfaceMethodImpl::getReturnType()
+{
+    return getReflection()->forType( getMethodTypeDescr()->pReturnTypeRef );
+}
+
+Sequence< Reference< XIdlClass > > IdlInterfaceMethodImpl::getExceptionTypes()
+{
+    if (! m_xExceptionTypes)
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! m_xExceptionTypes)
+        {
+            sal_Int32 nExc = getMethodTypeDescr()->nExceptions;
+            Sequence< Reference< XIdlClass > > aTempExceptionTypes( nExc );
+            Reference< XIdlClass > * pExceptionTypes = aTempExceptionTypes.getArray();
+
+            typelib_TypeDescriptionReference ** ppExc =
+                getMethodTypeDescr()->ppExceptions;
+            IdlReflectionServiceImpl * pRefl = getReflection();
+
+            while (nExc--)
+                pExceptionTypes[nExc] = pRefl->forType( ppExc[nExc] );
+
+            m_xExceptionTypes = std::move(aTempExceptionTypes);
+        }
+    }
+    return *m_xExceptionTypes;
+}
+
+Sequence< Reference< XIdlClass > > IdlInterfaceMethodImpl::getParameterTypes()
+{
+    if (! m_xParamTypes)
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! m_xParamTypes)
+        {
+            sal_Int32 nParams = getMethodTypeDescr()->nParams;
+            Sequence< Reference< XIdlClass > > aTempParamTypes( nParams );
+            Reference< XIdlClass > * pParamTypes = aTempParamTypes.getArray();
+
+            typelib_MethodParameter * pTypelibParams =
+                getMethodTypeDescr()->pParams;
+            IdlReflectionServiceImpl * pRefl = getReflection();
+
+            while (nParams--)
+                pParamTypes[nParams] = pRefl->forType( pTypelibParams[nParams].pTypeRef );
+
+            m_xParamTypes = std::move(aTempParamTypes);
+        }
+    }
+    return *m_xParamTypes;
+}
+
+Sequence< ParamInfo > IdlInterfaceMethodImpl::getParameterInfos()
+{
+    if (! m_xParamInfos)
+    {
+        ::osl::MutexGuard aGuard( getMutexAccess() );
+        if (! m_xParamInfos)
+        {
+            sal_Int32 nParams = getMethodTypeDescr()->nParams;
+            Sequence< ParamInfo > aTempParamInfos( nParams );
+            ParamInfo * pParamInfos = aTempParamInfos.getArray();
+
+            typelib_MethodParameter * pTypelibParams =
+                getMethodTypeDescr()->pParams;
+
+            if (m_xParamTypes) // use param types
+            {
+                const Reference< XIdlClass > * pParamTypes = m_xParamTypes->getConstArray();
+
+                while (nParams--)
+                {
+                    const typelib_MethodParameter & rParam = pTypelibParams[nParams];
+                    ParamInfo & rInfo = pParamInfos[nParams];
+                    rInfo.aName = rParam.pName;
+                    if (rParam.bIn)
+                        rInfo.aMode = (rParam.bOut ? ParamMode_INOUT : ParamMode_IN);
+                    else
+                        rInfo.aMode = ParamMode_OUT;
+                    rInfo.aType = pParamTypes[nParams];
+                }
+            }
+            else // make also param types sequence if not already initialized
+            {
+                Sequence< Reference< XIdlClass > > aTempParamTypes( nParams );
+                Reference< XIdlClass > * pParamTypes = aTempParamTypes.getArray();
+
+                IdlReflectionServiceImpl * pRefl = getReflection();
+
+                while (nParams--)
+                {
+                    const typelib_MethodParameter & rParam = pTypelibParams[nParams];
+                    ParamInfo & rInfo = pParamInfos[nParams];
+                    rInfo.aName = rParam.pName;
+                    if (rParam.bIn)
+                        rInfo.aMode = (rParam.bOut ? ParamMode_INOUT : ParamMode_IN);
+                    else
+                        rInfo.aMode = ParamMode_OUT;
+                    rInfo.aType = pParamTypes[nParams] = pRefl->forType( rParam.pTypeRef );
+                }
+
+                m_xParamTypes = std::move(aTempParamTypes);
+            }
+
+            m_xParamInfos = std::move(aTempParamInfos);
+        }
+    }
+    return *m_xParamInfos;
+}
+
+MethodMode SAL_CALL IdlInterfaceMethodImpl::getMode()
+{
+    return
+        getMethodTypeDescr()->bOneWay ? MethodMode_ONEWAY : MethodMode_TWOWAY;
+}
+
+Any SAL_CALL IdlInterfaceMethodImpl::invoke( const Any & rObj, Sequence< Any > & rArgs )
+{
+    if (auto ifc = o3tl::tryAccess<css::uno::Reference<css::uno::XInterface>>(
+            rObj))
+    {
+        // acquire()/ release()
+        if (rtl_ustr_ascii_compare( getTypeDescr()->pTypeName->buffer,
+                                    "com.sun.star.uno.XInterface::acquire" ) == 0)
+        {
+            (*ifc)->acquire();
+            return Any();
+        }
+        else if (rtl_ustr_ascii_compare( getTypeDescr()->pTypeName->buffer,
+                                         "com.sun.star.uno.XInterface::release" ) == 0)
+        {
+            (*ifc)->release();
+            return Any();
+        }
+    }
+
+    uno_Interface * pUnoI = getReflection()->mapToUno(
+        rObj, reinterpret_cast<typelib_InterfaceTypeDescription *>(getDeclTypeDescr()) );
+    OSL_ENSURE( pUnoI, "### illegal destination object given!" );
+    if (pUnoI)
+    {
+        sal_Int32 nParams = getMethodTypeDescr()->nParams;
+        if (rArgs.getLength() != nParams)
+        {
+            (*pUnoI->release)( pUnoI );
+            throw IllegalArgumentException(
+                "expected " + OUString::number(nParams) +
+                 " arguments, got " + OUString::number(rArgs.getLength()),
+                *o3tl::doAccess<Reference<XInterface>>(rObj), 1 );
+        }
+
+        Any * pCppArgs = rArgs.getArray();
+        typelib_MethodParameter * pParams = getMethodTypeDescr()->pParams;
+        typelib_TypeDescription * pReturnType = nullptr;
+        TYPELIB_DANGER_GET(
+            &pReturnType, getMethodTypeDescr()->pReturnTypeRef );
+
+        // C/C++ ABIs typically assume that structs are padded at the end, and
+        // that those padding bytes may be written to (e.g., to write into the
+        // end of a "short" struct by writing the full contents of a "long"
+        // register); so create enough space here (assuming that no ABI requires
+        // padding larger than 16 byte boundaries):
+        void * pUnoReturn = (pReturnType->nSize == 0) ? nullptr : alloca( multipleOf16(pReturnType->nSize) );
+        void ** ppUnoArgs = static_cast<void **>(alloca( sizeof(void *) * nParams *2 ));
+        typelib_TypeDescription ** ppParamTypes = reinterpret_cast<typelib_TypeDescription **>(ppUnoArgs + nParams);
+
+        // convert arguments
+        for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
+        {
+            ppParamTypes[nPos] = nullptr;
+            TYPELIB_DANGER_GET( ppParamTypes + nPos, pParams[nPos].pTypeRef );
+            typelib_TypeDescription * pTD = ppParamTypes[nPos];
+
+            ppUnoArgs[nPos] = alloca( pTD->nSize );
+            if (pParams[nPos].bIn)
+            {
+                bool bAssign;
+                if (typelib_typedescriptionreference_equals(
+                        pCppArgs[nPos].getValueTypeRef(), pTD->pWeakRef ))
+                {
+                    uno_type_copyAndConvertData(
+                        ppUnoArgs[nPos], const_cast<void *>(pCppArgs[nPos].getValue()),
+                        pCppArgs[nPos].getValueTypeRef(), getReflection()->getCpp2Uno().get() );
+                    bAssign = true;
+                }
+                else if (pTD->eTypeClass == typelib_TypeClass_ANY)
+                {
+                    uno_type_any_constructAndConvert(
+                        static_cast<uno_Any *>(ppUnoArgs[nPos]), const_cast<void *>(pCppArgs[nPos].getValue()),
+                        pCppArgs[nPos].getValueTypeRef(), getReflection()->getCpp2Uno().get() );
+                    bAssign = true;
+                }
+                else if (pTD->eTypeClass == typelib_TypeClass_INTERFACE)
+                {
+                    Reference< XInterface > xDest;
+                    bAssign = extract(
+                        pCppArgs[nPos], reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD),
+                        xDest, getReflection() );
+                    if (bAssign)
+                    {
+                        *static_cast<void **>(ppUnoArgs[nPos]) = getReflection()->getCpp2Uno().mapInterface(
+                            xDest.get(), reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) );
+                    }
+                }
+                else
+                {
+                    typelib_TypeDescription * pValueTD = nullptr;
+                    TYPELIB_DANGER_GET( &pValueTD, pCppArgs[nPos].getValueTypeRef() );
+                    // construct temp uno val to do proper assignment: todo opt
+                    void * pTemp = alloca( pValueTD->nSize );
+                    uno_copyAndConvertData(
+                        pTemp, const_cast<void *>(pCppArgs[nPos].getValue()), pValueTD,
+                        getReflection()->getCpp2Uno().get() );
+                    uno_constructData(
+                        ppUnoArgs[nPos], pTD );
+                    // assignment does simple conversion
+                    bAssign = uno_assignData(
+                        ppUnoArgs[nPos], pTD, pTemp, pValueTD, nullptr, nullptr, nullptr );
+                    uno_destructData(
+                        pTemp, pValueTD, nullptr );
+                    TYPELIB_DANGER_RELEASE( pValueTD );
+                }
+
+                if (! bAssign)
+                {
+                    IllegalArgumentException aExc(
+                        "cannot coerce argument type during corereflection call:"
+                        "\narg no.: " + OUString::number(nPos)
+                        + " expected: \"" + OUString::unacquired(&pTD->pTypeName)
+                        + "\" actual: \"" + OUString::unacquired(&pCppArgs[nPos].getValueTypeRef()->pTypeName)
+                        + "\"",
+                        *o3tl::doAccess<Reference<XInterface>>(rObj), static_cast<sal_Int16>(nPos) );
+
+                    // cleanup
+                    while (nPos--)
+                    {
+                        if (pParams[nPos].bIn)
+                            uno_destructData( ppUnoArgs[nPos], ppParamTypes[nPos], nullptr );
+                        TYPELIB_DANGER_RELEASE( ppParamTypes[nPos] );
+                    }
+                    TYPELIB_DANGER_RELEASE( pReturnType );
+                    (*pUnoI->release)( pUnoI );
+
+                    throw aExc;
+                }
+            }
+        }
+
+        uno_Any aUnoExc;
+        uno_Any * pUnoExc = &aUnoExc;
+
+        (*pUnoI->pDispatcher)(
+            pUnoI, getTypeDescr(), pUnoReturn, ppUnoArgs, &pUnoExc );
+        (*pUnoI->release)( pUnoI );
+
+        Any aRet;
+        if (pUnoExc)
+        {
+            // cleanup
+            while (nParams--)
+            {
+                if (pParams[nParams].bIn)
+                    uno_destructData( ppUnoArgs[nParams], ppParamTypes[nParams], nullptr );
+                TYPELIB_DANGER_RELEASE( ppParamTypes[nParams] );
+            }
+            TYPELIB_DANGER_RELEASE( pReturnType );
+
+            uno_any_destruct(&aRet,
+                reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+            uno_type_copyAndConvertData(&aRet, pUnoExc, cppu::UnoType<Any>::get().getTypeLibType(),
+                getReflection()->getUno2Cpp().get() );
+            uno_any_destruct( pUnoExc, nullptr );
+            throw InvocationTargetException("exception occurred during invocation!",
+                                            *o3tl::doAccess<Reference<XInterface>>(rObj), aRet);
+        }
+        else
+        {
+            // reconvert arguments and cleanup
+            while (nParams--)
+            {
+                if (pParams[nParams].bOut) // write back
+                {
+                    uno_any_destruct(
+                        &pCppArgs[nParams],
+                        reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+                    uno_any_constructAndConvert(
+                        &pCppArgs[nParams], ppUnoArgs[nParams], ppParamTypes[nParams],
+                        getReflection()->getUno2Cpp().get() );
+                }
+                uno_destructData( ppUnoArgs[nParams], ppParamTypes[nParams], nullptr );
+                TYPELIB_DANGER_RELEASE( ppParamTypes[nParams] );
+            }
+            uno_any_destruct(
+                &aRet, reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+            uno_any_constructAndConvert(
+                &aRet, pUnoReturn, pReturnType,
+                getReflection()->getUno2Cpp().get() );
+            uno_destructData( pUnoReturn, pReturnType, nullptr );
+            TYPELIB_DANGER_RELEASE( pReturnType );
+        }
+        return aRet;
+    }
+    throw IllegalArgumentException(
+        "illegal destination object given!",
+        getXWeak(), 0 );
+}
+
+
+InterfaceIdlClassImpl::~InterfaceIdlClassImpl()
+{
+    for ( sal_Int32 nPos = _nMethods + _nAttributes; nPos--; )
+        typelib_typedescription_release( _pSortedMemberInit[nPos].second );
+}
+
+
+Sequence< Reference< XIdlClass > > InterfaceIdlClassImpl::getSuperclasses()
+{
+    ::osl::MutexGuard aGuard(getMutexAccess());
+    if (!_xSuperClasses.hasElements()) {
+        typelib_InterfaceTypeDescription * pType = getTypeDescr();
+        _xSuperClasses.realloc(pType->nBaseTypes);
+        auto pSuperClasses = _xSuperClasses.getArray();
+        for (sal_Int32 i = 0; i < pType->nBaseTypes; ++i) {
+            pSuperClasses[i] = getReflection()->forType(
+                &pType->ppBaseTypes[i]->aBase);
+            OSL_ASSERT(_xSuperClasses[i].is());
+        }
+    }
+    return _xSuperClasses;
+}
+
+void InterfaceIdlClassImpl::initMembers()
+{
+    sal_Int32 nAll = getTypeDescr()->nAllMembers;
+    std::unique_ptr<MemberInit[]> pSortedMemberInit(new MemberInit[nAll]);
+    typelib_TypeDescriptionReference ** ppAllMembers = getTypeDescr()->ppAllMembers;
+
+    for ( sal_Int32 nPos = 0; nPos < nAll; ++nPos )
+    {
+        sal_Int32 nIndex;
+        if (ppAllMembers[nPos]->eTypeClass == typelib_TypeClass_INTERFACE_METHOD)
+        {
+            // methods to front
+            nIndex = _nMethods;
+            ++_nMethods;
+        }
+        else
+        {
+            ++_nAttributes;
+            nIndex = (nAll - _nAttributes);
+            // attributes at the back
+        }
+
+        typelib_TypeDescription * pTD = nullptr;
+        typelib_typedescriptionreference_getDescription( &pTD, ppAllMembers[nPos] );
+        assert(pTD && "### cannot get type description!");
+        pSortedMemberInit[nIndex].first = reinterpret_cast<typelib_InterfaceMemberTypeDescription *>(pTD)->pMemberName;
+        pSortedMemberInit[nIndex].second = pTD;
+    }
+
+    _pSortedMemberInit = std::move(pSortedMemberInit);
+}
+
+sal_Bool InterfaceIdlClassImpl::isAssignableFrom( const Reference< XIdlClass > & xType )
+{
+    if (xType.is() && xType->getTypeClass() == TypeClass_INTERFACE)
+    {
+        if (equals( xType ))
+            return true;
+        else
+        {
+            const Sequence< Reference< XIdlClass > > & rSeq = xType->getSuperclasses();
+            if (std::any_of(rSeq.begin(), rSeq.end(),
+                    [this](const Reference<XIdlClass>& rType){ return isAssignableFrom(rType); }))
+                return true;
+        }
+    }
+    return false;
+}
+
+Uik InterfaceIdlClassImpl::getUik()
+{
+    return Uik(0, 0, 0, 0, 0);
+        // Uiks are deprecated and this function must not be called
+}
+
+Sequence< Reference< XIdlMethod > > InterfaceIdlClassImpl::getMethods()
+{
+    ::osl::MutexGuard aGuard( getMutexAccess() );
+    if (! _pSortedMemberInit)
+        initMembers();
+
+    // create methods sequence
+    Sequence< Reference< XIdlMethod > > aRet( _nMethods );
+    Reference< XIdlMethod > * pRet = aRet.getArray();
+    for ( sal_Int32 nPos = _nMethods; nPos--; )
+    {
+
+        /*_aName2Method[_pSortedMemberInit[nPos].first] = */pRet[nPos] = new IdlInterfaceMethodImpl(
+            getReflection(), _pSortedMemberInit[nPos].first,
+            _pSortedMemberInit[nPos].second, IdlClassImpl::getTypeDescr() );
+    }
+    return aRet;
+}
+
+Sequence< Reference< XIdlField > > InterfaceIdlClassImpl::getFields()
+{
+    ::osl::MutexGuard aGuard( getMutexAccess() );
+    if (! _pSortedMemberInit)
+        initMembers();
+
+    // create fields sequence
+    Sequence< Reference< XIdlField > > aRet( _nAttributes );
+    Reference< XIdlField > * pRet = aRet.getArray();
+    for ( sal_Int32 nPos = _nAttributes; nPos--; )
+    {
+        /*_aName2Field[_pSortedMemberInit[_nMethods+nPos].first] = */pRet[_nAttributes-nPos-1] =
+            new IdlAttributeFieldImpl(
+                getReflection(), _pSortedMemberInit[_nMethods+nPos].first,
+                _pSortedMemberInit[_nMethods+nPos].second, IdlClassImpl::getTypeDescr() );
+    }
+    return aRet;
+}
+
+Reference< XIdlMethod > InterfaceIdlClassImpl::getMethod( const OUString & rName )
+{
+    ::osl::MutexGuard aGuard( getMutexAccess() );
+    if (! _pSortedMemberInit)
+        initMembers();
+
+    Reference< XIdlMethod > xRet;
+
+    // try weak map
+    const OUString2Method::const_iterator iFind( _aName2Method.find( rName ) );
+    if (iFind != _aName2Method.end())
+        xRet = (*iFind).second; // harden ref
+
+    if (! xRet.is())
+    {
+        for ( sal_Int32 nPos = _nMethods; nPos--; )
+        {
+            if (_pSortedMemberInit[nPos].first == rName)
+            {
+                _aName2Method[rName] = xRet = new IdlInterfaceMethodImpl(
+                    getReflection(), rName,
+                    _pSortedMemberInit[nPos].second, IdlClassImpl::getTypeDescr() );
+                break;
+            }
+        }
+    }
+    return xRet;
+}
+
+Reference< XIdlField > InterfaceIdlClassImpl::getField( const OUString & rName )
+{
+    ::osl::MutexGuard aGuard( getMutexAccess() );
+    if (! _pSortedMemberInit)
+        initMembers();
+
+    Reference< XIdlField > xRet;
+
+    // try weak map
+    const OUString2Field::const_iterator iFind( _aName2Field.find( rName ) );
+    if (iFind != _aName2Field.end())
+        xRet = (*iFind).second; // harden ref
+
+    if (! xRet.is())
+    {
+        for ( sal_Int32 nPos = _nAttributes; nPos--; )
+        {
+            if (_pSortedMemberInit[_nMethods+nPos].first == rName)
+            {
+                _aName2Field[rName] = xRet = new IdlAttributeFieldImpl(
+                    getReflection(), rName,
+                    _pSortedMemberInit[_nMethods+nPos].second, IdlClassImpl::getTypeDescr() );
+                break;
+            }
+        }
+    }
+    return xRet;
+}
+
+void InterfaceIdlClassImpl::createObject( Any & rObj )
+{
+    // interfaces cannot be constructed
+    rObj.clear();
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/dump.cxx b/stoc/source/corereflection/dump.cxx
new file mode 100644
index 0000000000..0905393db9
--- /dev/null
+++ b/stoc/source/corereflection/dump.cxx
@@ -0,0 +1,358 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <bitset>
+
+#include <com/sun/star/container/NoSuchElementException.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/reflection/XConstantTypeDescription.hpp>
+#include <com/sun/star/reflection/XConstantsTypeDescription.hpp>
+#include <com/sun/star/reflection/XDump.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/DeploymentException.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/Type.hxx>
+#include <com/sun/star/uno/TypeClass.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <config_typesizes.h>
+#include <cppu/unotype.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/interfacecontainer.hxx>
+#include <o3tl/unreachable.hxx>
+#include <osl/mutex.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <sal/types.h>
+#include <typelib/typedescription.h>
+#include <typelib/typedescription.hxx>
+#include <uno/sequence2.h>
+
+namespace com::sun::star::uno
+{
+class XInterface;
+}
+
+namespace
+{
+template <typename T> OUString hex(T value, sal_Int32 width)
+{
+    OUStringBuffer buf(OUString::number(value, 16));
+    while (buf.getLength() < width)
+    {
+        buf.insert(0, '0');
+    }
+    return buf.makeStringAndClear();
+}
+
+css::uno::TypeDescription getTypeDescription(css::uno::Type const& type)
+{
+    typelib_TypeDescription* d = nullptr;
+    type.getDescription(&d);
+    return css::uno::TypeDescription(d);
+}
+
+OUString
+getIdentifier(css::uno::Reference<css::reflection::XConstantTypeDescription> const& constant)
+{
+    auto const n = constant->getName();
+    auto const i = n.lastIndexOf('.');
+    if (i == -1 || i == n.getLength() - 1)
+    {
+        throw css::uno::DeploymentException("bad constant name " + n);
+    }
+    return n.copy(i + 1);
+}
+
+OUString
+dumpBitset(css::uno::Sequence<css::uno::Reference<css::reflection::XConstantTypeDescription>> const&
+               constants,
+           sal_uInt64 value)
+{
+    OUStringBuffer buf;
+    auto a = value;
+    for (auto const& i : constants)
+    {
+        sal_uInt64 c;
+        if ((i->getConstantValue() >>= c) && std::bitset<64>{ c }.count() == 1 && (a & c) != 0)
+        {
+            if (!buf.isEmpty())
+            {
+                buf.append('+');
+            }
+            buf.append(getIdentifier(i));
+            a &= ~c;
+        }
+    }
+    return a == 0 && !buf.isEmpty() ? buf.makeStringAndClear() : OUString::number(value);
+}
+
+class Dump : public cppu::BaseMutex, public cppu::WeakComponentImplHelper<css::reflection::XDump>
+{
+public:
+    explicit Dump(css::uno::Reference<css::uno::XComponentContext> const& context)
+        : WeakComponentImplHelper(m_aMutex)
+        , manager_(context->getValueByName(
+                       "/singletons/com.sun.star.reflection.theTypeDescriptionManager"),
+                   css::uno::UNO_QUERY_THROW)
+    {
+    }
+
+    void SAL_CALL disposing() override
+    {
+        osl::MutexGuard g(m_aMutex);
+        manager_.clear();
+    }
+
+    OUString SAL_CALL dumpValue(css::uno::Any const& value) override
+    {
+        switch (value.getValueTypeClass())
+        {
+            case css::uno::TypeClass_VOID:
+                return "void";
+            case css::uno::TypeClass_BOOLEAN:
+                return OUString::boolean(value.get<bool>());
+            case css::uno::TypeClass_BYTE:
+                return OUString::number(value.get<sal_Int8>());
+            case css::uno::TypeClass_SHORT:
+                return OUString::number(value.get<sal_Int16>());
+            case css::uno::TypeClass_UNSIGNED_SHORT:
+                return OUString::number(value.get<sal_uInt16>());
+            case css::uno::TypeClass_LONG:
+                return OUString::number(value.get<sal_Int32>());
+            case css::uno::TypeClass_UNSIGNED_LONG:
+                return OUString::number(value.get<sal_uInt32>());
+            case css::uno::TypeClass_HYPER:
+                return OUString::number(value.get<sal_Int64>());
+            case css::uno::TypeClass_UNSIGNED_HYPER:
+                return OUString::number(value.get<sal_uInt64>());
+            case css::uno::TypeClass_FLOAT:
+                return OUString::number(value.get<float>());
+            case css::uno::TypeClass_DOUBLE:
+                return OUString::number(value.get<double>());
+            case css::uno::TypeClass_CHAR:
+                return "U+" + hex(value.get<sal_Unicode>(), 16);
+            case css::uno::TypeClass_STRING:
+            {
+                auto const s = value.get<OUString>();
+                OUStringBuffer buf;
+                for (sal_Int32 i = 0; i != s.getLength();)
+                {
+                    auto const c = s.iterateCodePoints(&i);
+                    if (c >= u8' ' && c <= u8'~')
+                    {
+                        if (c == u8'\"' || c == u8'\\')
+                        {
+                            buf.append('\\');
+                        }
+                        buf.append(char(c));
+                    }
+                    else if (c <= 0xFFFF)
+                    {
+                        buf.append("\\u" + hex(c, 4));
+                    }
+                    else
+                    {
+                        buf.append("\\U" + hex(c, 8));
+                    }
+                }
+                return "\"" + buf + "\"";
+            }
+            case css::uno::TypeClass_TYPE:
+                return value.get<css::uno::Type>().getTypeName();
+            case css::uno::TypeClass_SEQUENCE:
+            {
+                css::uno::Type const t(reinterpret_cast<typelib_IndirectTypeDescription const*>(
+                                           getTypeDescription(value.getValueType()).get())
+                                           ->pType);
+                auto const n = getTypeDescription(t).get()->nSize;
+                auto const s = *static_cast<uno_Sequence* const*>(value.getValue());
+                OUStringBuffer buf;
+                for (sal_Int32 i = 0; i != s->nElements; ++i)
+                {
+                    if (i != 0)
+                    {
+                        buf.append(", ");
+                    }
+                    css::uno::Any const e(s->elements + i * n, t);
+                    buf.append(t == cppu::UnoType<css::uno::Any>::get() ? dumpAny(e)
+                                                                        : dumpValue(e));
+                }
+                return "[" + buf + "]";
+            }
+            case css::uno::TypeClass_ENUM:
+            {
+                auto const d = getTypeDescription(value.getValueType());
+                auto const ed = reinterpret_cast<typelib_EnumTypeDescription const*>(d.get());
+                auto const e = *static_cast<sal_Int32 const*>(value.getValue());
+                for (sal_Int32 i = 0; i != ed->nEnumValues; ++i)
+                {
+                    if (ed->pEnumValues[i] == e)
+                    {
+                        return OUString(ed->ppEnumNames[i]);
+                    }
+                }
+                return OUString::number(e);
+            }
+            case css::uno::TypeClass_STRUCT:
+            case css::uno::TypeClass_EXCEPTION:
+            {
+                auto const d = getTypeDescription(value.getValueType());
+                OUStringBuffer buf;
+                dumpCompoundType(reinterpret_cast<typelib_CompoundTypeDescription const*>(d.get()),
+                                 value.getValue(), &buf);
+                return "[" + buf + "]";
+            }
+            case css::uno::TypeClass_INTERFACE:
+            {
+                auto const p = *static_cast<void* const*>(value.getValue());
+                return p == nullptr ? OUString("null")
+                                    : OUString("0x"
+                                               + hex(reinterpret_cast<sal_uIntPtr>(p),
+                                                     SAL_TYPES_SIZEOFPOINTER * 2));
+            }
+            default:
+                O3TL_UNREACHABLE;
+        }
+    }
+
+    OUString SAL_CALL dumpAny(css::uno::Any const& value) override
+    {
+        return "[" + value.getValueType().getTypeName() + ": " + dumpValue(value) + "]";
+    }
+
+    OUString SAL_CALL dumpConstant(OUString const& constantsGroup,
+                                   css::uno::Any const& value) override
+    {
+        css::uno::Reference<css::container::XHierarchicalNameAccess> manager;
+        {
+            osl::MutexGuard g(m_aMutex);
+            if (rBHelper.bDisposed)
+            {
+                throw css::lang::DisposedException("css.reflection.Dumper");
+            }
+            manager = manager_;
+        }
+        css::uno::Reference<css::reflection::XConstantsTypeDescription> g;
+        try
+        {
+            manager_->getByHierarchicalName(constantsGroup) >>= g;
+        }
+        catch (css::container::NoSuchElementException)
+        {
+        }
+        if (!g.is())
+        {
+            throw css::lang::IllegalArgumentException("not a constants group: " + constantsGroup,
+                                                      {}, 0);
+        }
+        auto const s = g->getConstants();
+        switch (value.getValueTypeClass())
+        {
+            case css::uno::TypeClass_BOOLEAN:
+                for (auto const& i : s)
+                {
+                    if (i->getConstantValue() == value)
+                    {
+                        return getIdentifier(i);
+                    }
+                }
+                return OUString::boolean(value.get<bool>());
+            case css::uno::TypeClass_BYTE:
+            case css::uno::TypeClass_SHORT:
+            case css::uno::TypeClass_LONG:
+            case css::uno::TypeClass_HYPER:
+            {
+                auto const v = value.get<sal_Int64>();
+                for (auto const& i : s)
+                {
+                    sal_Int64 c;
+                    if ((i->getConstantValue() >>= c) && c == v)
+                    {
+                        return getIdentifier(i);
+                    }
+                }
+                return v >= 0 ? dumpBitset(s, v) : OUString::number(v);
+            }
+            case css::uno::TypeClass_UNSIGNED_SHORT:
+            case css::uno::TypeClass_UNSIGNED_LONG:
+            case css::uno::TypeClass_UNSIGNED_HYPER:
+            {
+                auto const v = value.get<sal_uInt64>();
+                for (auto const& i : s)
+                {
+                    sal_uInt64 c;
+                    if ((i->getConstantValue() >>= c) && c == v)
+                    {
+                        return getIdentifier(i);
+                    }
+                }
+                return dumpBitset(s, v);
+            }
+            case css::uno::TypeClass_FLOAT:
+            case css::uno::TypeClass_DOUBLE:
+            {
+                auto const v = value.get<double>();
+                for (auto const& i : s)
+                {
+                    double c;
+                    if ((i->getConstantValue() >>= c) && c == v)
+                    {
+                        return getIdentifier(i);
+                    }
+                }
+                return OUString::number(v);
+            }
+            default:
+                throw css::lang::IllegalArgumentException(
+                    "not a numeric type: " + value.getValueTypeName(), {}, 1);
+        }
+    }
+
+private:
+    css::uno::Reference<css::container::XHierarchicalNameAccess> manager_;
+
+    void dumpCompoundType(typelib_CompoundTypeDescription const* description, void const* data,
+                          OUStringBuffer* buffer)
+    {
+        if (auto base = description->pBaseTypeDescription)
+        {
+            dumpCompoundType(base, data, buffer);
+        }
+        for (sal_Int32 i = 0; i != description->nMembers; ++i)
+        {
+            if (!buffer->isEmpty())
+            {
+                buffer->append(", ");
+            }
+            buffer->append(OUString::unacquired(description->ppMemberNames + i) + ": ");
+            css::uno::Type t(description->ppTypeRefs[i]);
+            css::uno::Any const m(static_cast<char const*>(data) + description->pMemberOffsets[i],
+                                  t);
+            buffer->append(t == cppu::UnoType<css::uno::Any>::get() ? dumpAny(m) : dumpValue(m));
+        }
+    }
+};
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_stoc_Dump_get_implementation(css::uno::XComponentContext* context,
+                                               css::uno::Sequence<css::uno::Any> const& arguments)
+{
+    SAL_WARN_IF(arguments.hasElements(), "stoc", "unexpected singleton arguments");
+    return cppu::acquire(new Dump(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/stoc/source/corereflection/lrucache.hxx b/stoc/source/corereflection/lrucache.hxx
new file mode 100644
index 0000000000..d5eebe804f
--- /dev/null
+++ b/stoc/source/corereflection/lrucache.hxx
@@ -0,0 +1,209 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_STOC_SOURCE_COREREFLECTION_LRUCACHE_HXX
+#define INCLUDED_STOC_SOURCE_COREREFLECTION_LRUCACHE_HXX
+
+// __CACHE_DIAGNOSE forces cache size to 4 and works only for OUString keys
+//  #define __CACHE_DIAGNOSE 1
+
+#include <rtl/ustring.hxx>
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+namespace com::sun::star::uno { class Any; }
+
+/** Implementation of a least recently used (lru) cache.
+    <br>
+*/
+template< class t_Key, class t_Val, class t_KeyHash >
+class LRU_Cache
+{
+    struct CacheEntry
+    {
+        t_Key               aKey;
+        t_Val               aVal;
+        CacheEntry *        pPred;
+        CacheEntry *        pSucc;
+    };
+    typedef std::unordered_map< t_Key, CacheEntry *, t_KeyHash > t_Key2Element;
+
+    mutable std::mutex        _aCacheMutex;
+    sal_Int32                   _nCachedElements;
+    t_Key2Element               _aKey2Element;
+
+    std::unique_ptr<CacheEntry[]> _pBlock;
+    mutable CacheEntry *        _pHead;
+    mutable CacheEntry *        _pTail;
+    inline void toFront( CacheEntry * pEntry ) const;
+
+public:
+    /** Constructor:
+        <br>
+        @param nCachedElements number of elements to be cached; default param set to 128
+    */
+    explicit inline LRU_Cache();
+
+    /** Retrieves a value from the cache. Returns default constructed value,
+        if none was found.
+        <br>
+        @param rKey a key
+        @return value
+    */
+    inline t_Val getValue( const t_Key & rKey ) const;
+    /** Sets a value to be cached for given key.
+        <br>
+        @param rKey a key
+        @param rValue a value
+    */
+    inline void setValue( const t_Key & rKey, const t_Val & rValue );
+    /** Clears the cache, thus releasing all cached elements and keys.
+        <br>
+    */
+    inline void clear();
+};
+
+template< class t_Key, class t_Val, class t_KeyHash >
+inline LRU_Cache< t_Key, t_Val, t_KeyHash >::LRU_Cache()
+#ifdef __CACHE_DIAGNOSE
+    : _nCachedElements( 4 )
+#else
+    : _nCachedElements( 256 )
+#endif
+    , _pBlock( nullptr )
+    , _pHead( nullptr )
+    , _pTail( nullptr )
+{
+    _pBlock.reset(new CacheEntry[_nCachedElements]);
+    _pHead = _pBlock.get();
+    _pTail = _pBlock.get() + _nCachedElements - 1;
+    for (sal_Int32 nPos = _nCachedElements; nPos--;)
+    {
+        _pBlock[nPos].pPred = _pBlock.get() + nPos - 1;
+        _pBlock[nPos].pSucc = _pBlock.get() + nPos + 1;
+    }
+}
+
+template< class t_Key, class t_Val, class t_KeyHash >
+inline void LRU_Cache< t_Key, t_Val, t_KeyHash >::toFront( CacheEntry * pEntry ) const
+{
+    if (pEntry != _pHead)
+    {
+        // cut out element
+        if (pEntry == _pTail)
+        {
+            _pTail = pEntry->pPred;
+        }
+        else
+        {
+            pEntry->pSucc->pPred = pEntry->pPred;
+            pEntry->pPred->pSucc = pEntry->pSucc;
+        }
+        // push to front
+        _pHead->pPred = pEntry;
+        pEntry->pSucc = _pHead;
+        _pHead        = pEntry;
+    }
+}
+
+template< class t_Key, class t_Val, class t_KeyHash >
+inline t_Val LRU_Cache< t_Key, t_Val, t_KeyHash >::getValue( const t_Key & rKey ) const
+{
+    std::scoped_lock aGuard( _aCacheMutex );
+    const typename t_Key2Element::const_iterator iFind( _aKey2Element.find( rKey ) );
+    if (iFind != _aKey2Element.end())
+    {
+        CacheEntry * pEntry = (*iFind).second;
+        toFront( pEntry );
+#ifdef __CACHE_DIAGNOSE
+        SAL_INFO("stoc.corerefl", "> retrieved element \"" );
+        SAL_INFO("stoc.corerefl", "" << pEntry->aKey);
+        SAL_INFO("stoc.corerefl", "\" from cache <" );
+#endif
+        return pEntry->aVal;
+    }
+    return t_Val();
+}
+
+template< class t_Key, class t_Val, class t_KeyHash >
+inline void LRU_Cache< t_Key, t_Val, t_KeyHash >::setValue(
+    const t_Key & rKey, const t_Val & rValue )
+{
+    std::scoped_lock aGuard( _aCacheMutex );
+    if (_nCachedElements > 0)
+    {
+        const typename t_Key2Element::const_iterator iFind( _aKey2Element.find( rKey ) );
+
+        CacheEntry * pEntry;
+        if (iFind == _aKey2Element.end())
+        {
+            pEntry = _pTail; // erase last element
+#ifdef __CACHE_DIAGNOSE
+            if (pEntry->aKey.getLength())
+            {
+                SAL_INFO("stoc.corerefl", "> kicking element \"" );
+                SAL_INFO("stoc.corerefl", "" << pEntry->aKey);
+                SAL_INFO("stoc.corerefl", "\" from cache <" );
+            }
+#endif
+            _aKey2Element.erase( pEntry->aKey );
+            pEntry->aKey = rKey;
+            _aKey2Element[ rKey ] = pEntry;
+        }
+        else
+        {
+            pEntry = (*iFind).second;
+#ifdef __CACHE_DIAGNOSE
+            SAL_INFO("stoc.corerefl", "> replacing element \"" );
+            SAL_INFO("stoc.corerefl", "" << pEntry->aKey);
+            SAL_INFO("stoc.corerefl", "\" in cache <" );
+#endif
+        }
+        pEntry->aVal = rValue;
+        toFront( pEntry );
+    }
+}
+
+template< class t_Key, class t_Val, class t_KeyHash >
+inline void LRU_Cache< t_Key, t_Val, t_KeyHash >::clear()
+{
+    std::scoped_lock aGuard( _aCacheMutex );
+    _aKey2Element.clear();
+    for ( sal_Int32 nPos = _nCachedElements; nPos--; )
+    {
+        _pBlock[nPos].aKey = t_Key();
+        _pBlock[nPos].aVal = t_Val();
+    }
+    _nCachedElements = 0;
+#ifdef __CACHE_DIAGNOSE
+    SAL_INFO("stoc.corerefl", "> cleared cache <" );
+#endif
+}
+
+
+/** Template instance for OUString keys, Any values.<br>
+*/
+typedef LRU_Cache< OUString, css::uno::Any, OUStringHash >
+    LRU_CacheAnyByOUString;
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/corereflection/reflection.component b/stoc/source/corereflection/reflection.component
new file mode 100644
index 0000000000..0210c80904
--- /dev/null
+++ b/stoc/source/corereflection/reflection.component
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.CoreReflection"
+      constructor="com_sun_star_comp_stoc_CoreReflection_get_implementation"
+      single-instance="true">
+    <service name="com.sun.star.reflection.CoreReflection"/>
+    <singleton name="com.sun.star.reflection.theCoreReflection"/>
+  </implementation>
+  <implementation name="com.sun.star.comp.stoc.Dump"
+      constructor="com_sun_star_comp_stoc_Dump_get_implementation"
+      single-instance="true">
+    <singleton name="com.sun.star.reflection.Dump"/>
+  </implementation>
+</component>
diff --git a/stoc/source/defaultregistry/defaultregistry.cxx b/stoc/source/defaultregistry/defaultregistry.cxx
new file mode 100644
index 0000000000..815d7a6679
--- /dev/null
+++ b/stoc/source/defaultregistry/defaultregistry.cxx
@@ -0,0 +1,1186 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <osl/mutex.hxx>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <rtl/ref.hxx>
+
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/container/XEnumerationAccess.hpp>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+using namespace css::uno;
+using namespace css::registry;
+using namespace css::lang;
+using namespace css::container;
+using namespace cppu;
+using namespace osl;
+
+namespace {
+
+class NestedRegistryImpl : public WeakImplHelper < XSimpleRegistry, XInitialization, XServiceInfo, XEnumerationAccess >
+{
+public:
+    NestedRegistryImpl( );
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName(  ) override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) override;
+
+    // XSimpleRegistry
+    virtual OUString SAL_CALL getURL() override;
+    virtual void SAL_CALL open( const OUString& rURL, sal_Bool bReadOnly, sal_Bool bCreate ) override;
+    virtual sal_Bool SAL_CALL isValid(  ) override;
+    virtual void SAL_CALL close(  ) override;
+    virtual void SAL_CALL destroy(  ) override;
+    virtual Reference< XRegistryKey > SAL_CALL getRootKey(  ) override;
+    virtual sal_Bool SAL_CALL isReadOnly(  ) override;
+    virtual void SAL_CALL mergeKey( const OUString& aKeyName, const OUString& aUrl ) override;
+
+    // XEnumerationAccess
+    virtual Reference< XEnumeration > SAL_CALL createEnumeration(  ) override;
+    virtual Type SAL_CALL getElementType(  ) override;
+    virtual sal_Bool SAL_CALL hasElements(  ) override;
+
+    friend class NestedKeyImpl;
+protected:
+    Mutex                       m_mutex;
+    sal_uInt32                  m_state;
+    Reference<XSimpleRegistry>  m_localReg;
+    Reference<XSimpleRegistry>  m_defaultReg;
+
+};
+
+
+// class NestedKeyImpl the implementation of interface XRegistryKey
+
+class NestedKeyImpl : public WeakImplHelper< XRegistryKey >
+{
+public:
+    NestedKeyImpl( NestedRegistryImpl* pDefaultRegistry,
+                   Reference<XRegistryKey>& localKey,
+                   Reference<XRegistryKey>& defaultKey);
+
+    NestedKeyImpl( const OUString& aKeyName,
+                    NestedKeyImpl* pKey);
+
+    // XRegistryKey
+    virtual OUString SAL_CALL getKeyName() override;
+    virtual sal_Bool SAL_CALL isReadOnly(  ) override;
+    virtual sal_Bool SAL_CALL isValid(  ) override;
+    virtual RegistryKeyType SAL_CALL getKeyType( const OUString& rKeyName ) override;
+    virtual RegistryValueType SAL_CALL getValueType(  ) override;
+    virtual sal_Int32 SAL_CALL getLongValue(  ) override;
+    virtual void SAL_CALL setLongValue( sal_Int32 value ) override;
+    virtual Sequence< sal_Int32 > SAL_CALL getLongListValue(  ) override;
+    virtual void SAL_CALL setLongListValue( const css::uno::Sequence< sal_Int32 >& seqValue ) override;
+    virtual OUString SAL_CALL getAsciiValue(  ) override;
+    virtual void SAL_CALL setAsciiValue( const OUString& value ) override;
+    virtual Sequence< OUString > SAL_CALL getAsciiListValue(  ) override;
+    virtual void SAL_CALL setAsciiListValue( const css::uno::Sequence< OUString >& seqValue ) override;
+    virtual OUString SAL_CALL getStringValue(  ) override;
+    virtual void SAL_CALL setStringValue( const OUString& value ) override;
+    virtual Sequence< OUString > SAL_CALL getStringListValue(  ) override;
+    virtual void SAL_CALL setStringListValue( const css::uno::Sequence< OUString >& seqValue ) override;
+    virtual Sequence< sal_Int8 > SAL_CALL getBinaryValue(  ) override;
+    virtual void SAL_CALL setBinaryValue( const css::uno::Sequence< sal_Int8 >& value ) override;
+    virtual Reference< XRegistryKey > SAL_CALL openKey( const OUString& aKeyName ) override;
+    virtual Reference< XRegistryKey > SAL_CALL createKey( const OUString& aKeyName ) override;
+    virtual void SAL_CALL closeKey(  ) override;
+    virtual void SAL_CALL deleteKey( const OUString& rKeyName ) override;
+    virtual Sequence< Reference< XRegistryKey > > SAL_CALL openKeys(  ) override;
+    virtual Sequence< OUString > SAL_CALL getKeyNames(  ) override;
+    virtual sal_Bool SAL_CALL createLink( const OUString& aLinkName, const OUString& aLinkTarget ) override;
+    virtual void SAL_CALL deleteLink( const OUString& rLinkName ) override;
+    virtual OUString SAL_CALL getLinkTarget( const OUString& rLinkName ) override;
+    virtual OUString SAL_CALL getResolvedName( const OUString& aKeyName ) override;
+
+protected:
+    void        computeChanges();
+    OUString    computeName(const OUString& name);
+
+    OUString                    m_name;
+    sal_uInt32                  m_state;
+    rtl::Reference<NestedRegistryImpl> m_xRegistry;
+    Reference<XRegistryKey>     m_localKey;
+    Reference<XRegistryKey>     m_defaultKey;
+};
+
+
+NestedKeyImpl::NestedKeyImpl( NestedRegistryImpl* pDefaultRegistry,
+                              Reference<XRegistryKey>& localKey,
+                              Reference<XRegistryKey>& defaultKey )
+    : m_state(pDefaultRegistry->m_state), m_xRegistry(pDefaultRegistry), m_localKey(localKey), m_defaultKey(defaultKey)
+{
+    if (m_localKey.is())
+    {
+        m_name = m_localKey->getKeyName();
+    }
+    else if (m_defaultKey.is())
+    {
+        m_name = m_defaultKey->getKeyName();
+    }
+}
+
+
+NestedKeyImpl::NestedKeyImpl( const OUString& rKeyName,
+                              NestedKeyImpl* pKey)
+    : m_xRegistry(pKey->m_xRegistry)
+{
+    if (pKey->m_localKey.is() && pKey->m_localKey->isValid())
+    {
+        m_localKey = pKey->m_localKey->openKey(rKeyName);
+    }
+    if (pKey->m_defaultKey.is() && pKey->m_defaultKey->isValid())
+    {
+        m_defaultKey = pKey->m_defaultKey->openKey(rKeyName);
+    }
+
+    if (m_localKey.is())
+    {
+        m_name = m_localKey->getKeyName();
+    }
+    else if (m_defaultKey.is())
+    {
+        m_name = m_defaultKey->getKeyName();
+    }
+
+    m_state = m_xRegistry->m_state;
+}
+
+void NestedKeyImpl::computeChanges()
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( m_state == m_xRegistry->m_state )
+        return;
+
+    Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+
+    Reference<XRegistryKey> tmpKey = rootKey->openKey(m_name);
+
+    if ( tmpKey.is() )
+    {
+        m_localKey = rootKey->openKey(m_name);
+    }
+
+    m_state = m_xRegistry->m_state;
+}
+
+
+// NestedKey_Impl::computeName()
+
+OUString NestedKeyImpl::computeName(const OUString& name)
+{
+    OUString resLocalName, resDefaultName;
+
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    try
+    {
+        if ( m_localKey.is() && m_localKey->isValid() )
+        {
+            resLocalName = m_localKey->getResolvedName(name);
+        }
+        else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+        {
+            return m_defaultKey->getResolvedName(name);
+        }
+
+        if ( !resLocalName.isEmpty() && m_xRegistry->m_defaultReg->isValid() )
+        {
+            Reference<XRegistryKey> localRoot(m_xRegistry->m_localReg->getRootKey());
+            Reference<XRegistryKey> defaultRoot(m_xRegistry->m_defaultReg->getRootKey());
+
+            resDefaultName = defaultRoot->getResolvedName(resLocalName);
+
+            sal_uInt32 count = 100;
+
+            while (resLocalName != resDefaultName && count > 0)
+            {
+                count--;
+
+                if (resLocalName.isEmpty() || resDefaultName.isEmpty())
+                    throw InvalidRegistryException();
+
+                resLocalName = localRoot->getResolvedName(resDefaultName);
+                resDefaultName = defaultRoot->getResolvedName(resLocalName);
+            }
+        }
+    }
+    catch(InvalidRegistryException& )
+    {
+    }
+
+    return resLocalName;
+}
+
+
+OUString SAL_CALL NestedKeyImpl::getKeyName()
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    return m_name;
+}
+
+
+sal_Bool SAL_CALL NestedKeyImpl::isReadOnly(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( !m_localKey.is() || !m_localKey->isValid() )
+        throw InvalidRegistryException();
+
+    return m_localKey->isReadOnly();
+}
+
+
+sal_Bool SAL_CALL NestedKeyImpl::isValid(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    return ((m_localKey.is() && m_localKey->isValid()) ||
+            (m_defaultKey.is() && m_defaultKey->isValid()) );
+}
+
+
+RegistryKeyType SAL_CALL NestedKeyImpl::getKeyType( const OUString& rKeyName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getKeyType(rKeyName);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getKeyType(rKeyName);
+    }
+
+    return RegistryKeyType_KEY;
+}
+
+
+RegistryValueType SAL_CALL NestedKeyImpl::getValueType(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getValueType();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getValueType();
+    }
+
+    return RegistryValueType_NOT_DEFINED;
+}
+
+
+sal_Int32 SAL_CALL NestedKeyImpl::getLongValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getLongValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getLongValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setLongValue( sal_Int32 value )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setLongValue(value);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setLongValue(value);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+Sequence< sal_Int32 > SAL_CALL NestedKeyImpl::getLongListValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getLongListValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getLongListValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setLongListValue( const Sequence< sal_Int32 >& seqValue )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setLongListValue(seqValue);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setLongListValue(seqValue);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+OUString SAL_CALL NestedKeyImpl::getAsciiValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getAsciiValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getAsciiValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setAsciiValue( const OUString& value )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setAsciiValue(value);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setAsciiValue(value);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+Sequence< OUString > SAL_CALL NestedKeyImpl::getAsciiListValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getAsciiListValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getAsciiListValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setAsciiListValue( const Sequence< OUString >& seqValue )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setAsciiListValue(seqValue);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setAsciiListValue(seqValue);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+OUString SAL_CALL NestedKeyImpl::getStringValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getStringValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getStringValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setStringValue( const OUString& value )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setStringValue(value);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setStringValue(value);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+Sequence< OUString > SAL_CALL NestedKeyImpl::getStringListValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getStringListValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getStringListValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setStringListValue( const Sequence< OUString >& seqValue )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setStringListValue(seqValue);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setStringListValue(seqValue);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+Sequence< sal_Int8 > SAL_CALL NestedKeyImpl::getBinaryValue(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        return m_localKey->getBinaryValue();
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        return m_defaultKey->getBinaryValue();
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::setBinaryValue( const Sequence< sal_Int8 >& value )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    computeChanges();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->setBinaryValue(value);
+    }
+    else if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+        m_localKey = rootKey->createKey(m_name);
+        m_localKey->setBinaryValue(value);
+        m_state = m_xRegistry->m_state++;
+    }
+    else
+    {
+        throw InvalidRegistryException();
+    }
+}
+
+
+Reference< XRegistryKey > SAL_CALL NestedKeyImpl::openKey( const OUString& aKeyName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString resolvedName = computeName(aKeyName);
+
+    if ( resolvedName.isEmpty() )
+        throw InvalidRegistryException();
+
+    Reference<XRegistryKey> localKey, defaultKey;
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        localKey = m_xRegistry->m_localReg->getRootKey()->openKey(resolvedName);
+    }
+    if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        defaultKey = m_xRegistry->m_defaultReg->getRootKey()->openKey(resolvedName);
+    }
+
+    if ( localKey.is() || defaultKey.is() )
+    {
+        return new NestedKeyImpl(m_xRegistry.get(), localKey, defaultKey);
+    }
+    else
+    {
+        return Reference<XRegistryKey>();
+    }
+}
+
+
+Reference< XRegistryKey > SAL_CALL NestedKeyImpl::createKey( const OUString& aKeyName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( (!m_localKey.is() && !m_defaultKey.is()) ||
+         (m_localKey.is() && m_localKey->isReadOnly()) )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString resolvedName = computeName(aKeyName);
+
+    if ( resolvedName.isEmpty() )
+        throw InvalidRegistryException();
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        Reference<XRegistryKey> localKey, defaultKey;
+
+        localKey = m_xRegistry->m_localReg->getRootKey()->createKey(resolvedName);
+        if ( localKey.is() )
+        {
+            if ( m_defaultKey.is() && m_defaultKey->isValid() )
+            {
+                defaultKey = m_xRegistry->m_defaultReg->getRootKey()->openKey(resolvedName);
+            }
+
+            m_state = m_xRegistry->m_state++;
+
+            return new NestedKeyImpl(m_xRegistry.get(), localKey, defaultKey);
+        }
+    }
+    else
+    {
+        Reference<XRegistryKey> localKey, defaultKey;
+
+        if ( m_defaultKey.is() && m_defaultKey->isValid() )
+        {
+            Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+            m_localKey = rootKey->createKey(m_name);
+
+            localKey = m_xRegistry->m_localReg->getRootKey()->createKey(resolvedName);
+
+            if ( localKey.is() )
+            {
+                defaultKey = m_xRegistry->m_defaultReg->getRootKey()->openKey(resolvedName);
+
+                m_state = m_xRegistry->m_state++;
+
+                return new NestedKeyImpl(m_xRegistry.get(), localKey, defaultKey);
+            }
+        }
+    }
+
+    return Reference<XRegistryKey>();
+}
+
+
+void SAL_CALL NestedKeyImpl::closeKey(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        m_localKey->closeKey();
+    }
+    if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        m_defaultKey->closeKey();
+    }
+}
+
+
+void SAL_CALL NestedKeyImpl::deleteKey( const OUString& rKeyName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() || !m_localKey->isValid() ||
+         m_localKey->isReadOnly() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString resolvedName = computeName(rKeyName);
+
+    if ( resolvedName.isEmpty() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    m_xRegistry->m_localReg->getRootKey()->deleteKey(resolvedName);
+}
+
+
+Sequence< Reference< XRegistryKey > > SAL_CALL NestedKeyImpl::openKeys(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    Sequence<OUString> localSeq, defaultSeq;
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        localSeq = m_localKey->getKeyNames();
+    }
+    if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        defaultSeq = m_defaultKey->getKeyNames();
+    }
+
+    std::vector< Reference<XRegistryKey> > retVec;
+    retVec.reserve(localSeq.getLength() + defaultSeq.getLength());
+
+    auto lKeyNameToRegKey = [this](const OUString& rName) -> Reference<XRegistryKey> {
+        sal_Int32 lastIndex = rName.lastIndexOf('/');
+        OUString name = rName.copy(lastIndex);
+        return new NestedKeyImpl(name, this);
+    };
+
+    for (const auto& rKeyName : std::as_const(localSeq))
+        retVec.push_back(lKeyNameToRegKey(rKeyName));
+
+    for (const auto& rKeyName : std::as_const(defaultSeq))
+    {
+        if ( comphelper::findValue(localSeq, rKeyName) == -1 )
+        {
+            retVec.push_back(lKeyNameToRegKey(rKeyName));
+        }
+    }
+
+    return comphelper::containerToSequence(retVec);
+}
+
+
+Sequence< OUString > SAL_CALL NestedKeyImpl::getKeyNames(  )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    Sequence<OUString> localSeq, defaultSeq;
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        localSeq = m_localKey->getKeyNames();
+    }
+    if ( m_defaultKey.is() && m_defaultKey->isValid() )
+    {
+        defaultSeq = m_defaultKey->getKeyNames();
+    }
+
+    return comphelper::combineSequences(localSeq, defaultSeq);
+}
+
+
+sal_Bool SAL_CALL NestedKeyImpl::createLink( const OUString& aLinkName, const OUString& aLinkTarget )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+
+    bool isCreated = false;
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString    resolvedName;
+    sal_Int32   lastIndex = aLinkName.lastIndexOf('/');
+
+    if ( lastIndex > 0 )
+    {
+        OUString linkName = aLinkName.copy(0, lastIndex);
+
+        resolvedName = computeName(linkName);
+
+        if ( resolvedName.isEmpty() )
+        {
+            throw InvalidRegistryException();
+        }
+
+        resolvedName += aLinkName.subView(lastIndex);
+    }
+    else
+    {
+        if ( lastIndex == 0 )
+            resolvedName = m_name + aLinkName;
+        else
+            resolvedName = m_name + "/" + aLinkName;
+    }
+
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        isCreated = m_xRegistry->m_localReg->getRootKey()->createLink(resolvedName, aLinkTarget);
+    }
+    else
+    {
+        if ( m_defaultKey.is() && m_defaultKey->isValid() )
+        {
+            Reference<XRegistryKey> rootKey(m_xRegistry->m_localReg->getRootKey());
+            m_localKey = rootKey->createKey(m_name);
+
+            isCreated = m_xRegistry->m_localReg->getRootKey()->createLink(resolvedName, aLinkTarget);
+        }
+    }
+
+    if ( isCreated )
+        m_state = m_xRegistry->m_state++;
+
+    return isCreated;
+}
+
+
+void SAL_CALL NestedKeyImpl::deleteLink( const OUString& rLinkName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString    resolvedName;
+    sal_Int32   lastIndex = rLinkName.lastIndexOf('/');
+
+    if ( lastIndex > 0 )
+    {
+        OUString linkName = rLinkName.copy(0, lastIndex);
+
+        resolvedName = computeName(linkName);
+
+        if ( resolvedName.isEmpty() )
+        {
+            throw InvalidRegistryException();
+        }
+
+        resolvedName += rLinkName.subView(lastIndex);
+    }
+    else
+    {
+        if ( lastIndex == 0 )
+            resolvedName = m_name + rLinkName;
+        else
+            resolvedName = m_name + "/" + rLinkName;
+    }
+
+    if ( !m_localKey.is() || !m_localKey->isValid() ||
+         m_localKey->isReadOnly() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    m_xRegistry->m_localReg->getRootKey()->deleteLink(resolvedName);
+}
+
+
+OUString SAL_CALL NestedKeyImpl::getLinkTarget( const OUString& rLinkName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString    resolvedName;
+    sal_Int32   lastIndex = rLinkName.lastIndexOf('/');
+
+    if ( lastIndex > 0 )
+    {
+        OUString linkName = rLinkName.copy(0, lastIndex);
+
+        resolvedName = computeName(linkName);
+
+        if ( resolvedName.isEmpty() )
+        {
+            throw InvalidRegistryException();
+        }
+
+        resolvedName += rLinkName.subView(lastIndex);
+    }
+    else
+    {
+        if ( lastIndex == 0 )
+            resolvedName = m_name + rLinkName;
+        else
+            resolvedName = m_name + "/" + rLinkName;
+    }
+
+    OUString linkTarget;
+    if ( m_localKey.is() && m_localKey->isValid() )
+    {
+        try
+        {
+            linkTarget = m_xRegistry->m_localReg->getRootKey()->getLinkTarget(resolvedName);
+            return linkTarget;
+        }
+        catch(InvalidRegistryException& )
+        {
+        }
+    }
+
+    if ( m_defaultKey.is() && m_defaultKey->isValid() )
+        linkTarget = m_xRegistry->m_defaultReg->getRootKey()->getLinkTarget(resolvedName);
+
+    return linkTarget;
+}
+
+
+OUString SAL_CALL NestedKeyImpl::getResolvedName( const OUString& aKeyName )
+{
+    Guard< Mutex > aGuard( m_xRegistry->m_mutex );
+    if ( !m_localKey.is() && !m_defaultKey.is() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    OUString resolvedName = computeName(aKeyName);
+
+    if ( resolvedName.isEmpty() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    return resolvedName;
+}
+
+
+// DefaultRegistry Implementation
+
+
+NestedRegistryImpl::NestedRegistryImpl( )
+    : m_state(0)
+{}
+
+class RegistryEnumueration : public WeakImplHelper< XEnumeration >
+{
+public:
+    RegistryEnumueration(
+        const Reference< XSimpleRegistry > &r1,
+        const Reference< XSimpleRegistry > &r2 )
+        : m_xReg1( r1 ) , m_xReg2( r2 )
+        {}
+public:
+    virtual sal_Bool SAL_CALL hasMoreElements(  ) override;
+    virtual Any SAL_CALL nextElement(  ) override;
+
+private:
+    Reference< XSimpleRegistry > m_xReg1;
+    Reference< XSimpleRegistry > m_xReg2;
+};
+
+sal_Bool RegistryEnumueration::hasMoreElements(  )
+{
+    return m_xReg1.is() || m_xReg2.is();
+}
+
+Any RegistryEnumueration::nextElement(  )
+{
+    Any a;
+    if( m_xReg1.is() )
+    {
+        a <<= m_xReg1;
+        m_xReg1.clear();
+    }
+    else if( m_xReg2.is() )
+    {
+        a <<= m_xReg2;
+        m_xReg2.clear();
+    }
+    else
+    {
+        throw NoSuchElementException( "NestedRegistry: no nextElement() !" );
+    }
+    return a;
+}
+
+
+Reference< XEnumeration > NestedRegistryImpl::createEnumeration(  )
+{
+    MutexGuard guard( m_mutex );
+    return new RegistryEnumueration( m_localReg, m_defaultReg );
+}
+
+Type NestedRegistryImpl::getElementType(  )
+{
+    return cppu::UnoType<decltype(m_localReg)>::get();
+}
+
+sal_Bool SAL_CALL NestedRegistryImpl::hasElements(  )
+{
+    MutexGuard guard( m_mutex );
+    return m_localReg.is() || m_defaultReg.is();
+}
+
+
+OUString SAL_CALL NestedRegistryImpl::getImplementationName(  )
+{
+    return "com.sun.star.comp.stoc.NestedRegistry";
+}
+
+sal_Bool SAL_CALL NestedRegistryImpl::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence<OUString> SAL_CALL NestedRegistryImpl::getSupportedServiceNames(  )
+{
+    Sequence< OUString > seqNames { "com.sun.star.registry.NestedRegistry" };
+    return seqNames;
+}
+
+
+void SAL_CALL NestedRegistryImpl::initialize( const Sequence< Any >& aArguments )
+{
+    Guard< Mutex > aGuard( m_mutex );
+    if ( (aArguments.getLength() == 2) &&
+         (aArguments[0].getValueType().getTypeClass() == TypeClass_INTERFACE) &&
+         (aArguments[1].getValueType().getTypeClass() == TypeClass_INTERFACE) )
+    {
+        aArguments[0] >>= m_localReg;
+        aArguments[1] >>= m_defaultReg;
+        if ( m_localReg == m_defaultReg )
+            m_defaultReg.clear();
+    }
+}
+
+
+OUString SAL_CALL NestedRegistryImpl::getURL()
+{
+    Guard< Mutex > aGuard( m_mutex );
+    try
+    {
+        if ( m_localReg.is() && m_localReg->isValid() )
+            return m_localReg->getURL();
+    }
+    catch(InvalidRegistryException& )
+    {
+    }
+
+    return OUString();
+}
+
+
+void SAL_CALL NestedRegistryImpl::open( const OUString&, sal_Bool, sal_Bool )
+{
+    throw InvalidRegistryException(
+            "the 'open' method is not specified for a nested registry" );
+}
+
+
+sal_Bool SAL_CALL NestedRegistryImpl::isValid(  )
+{
+    Guard< Mutex > aGuard( m_mutex );
+    try
+    {
+        if ( (m_localReg.is() && m_localReg->isValid()) ||
+             (m_defaultReg.is() && m_defaultReg->isValid()) )
+            return true;
+    }
+    catch(InvalidRegistryException& )
+    {
+    }
+
+    return false;
+}
+
+
+void SAL_CALL NestedRegistryImpl::close(  )
+{
+    Guard< Mutex > aGuard( m_mutex );
+    if ( m_localReg.is() && m_localReg->isValid() )
+    {
+        m_localReg->close();
+    }
+    if ( m_defaultReg.is() && m_defaultReg->isValid() )
+    {
+        m_defaultReg->close();
+    }
+}
+
+
+void SAL_CALL NestedRegistryImpl::destroy(  )
+{
+    throw InvalidRegistryException(
+            "the 'destroy' method is not specified for a nested registry" );
+}
+
+
+Reference< XRegistryKey > SAL_CALL NestedRegistryImpl::getRootKey(  )
+{
+    Guard< Mutex > aGuard( m_mutex );
+    if ( !m_localReg.is() || !m_localReg->isValid() )
+    {
+        throw InvalidRegistryException();
+    }
+
+    Reference<XRegistryKey> localKey, defaultKey;
+
+    localKey = m_localReg->getRootKey();
+
+    if ( localKey.is() )
+    {
+        if ( m_defaultReg.is() && m_defaultReg->isValid() )
+        {
+            defaultKey = m_defaultReg->getRootKey();
+        }
+
+        return new NestedKeyImpl(this, localKey, defaultKey);
+    }
+
+    return Reference<XRegistryKey>();
+}
+
+
+sal_Bool SAL_CALL NestedRegistryImpl::isReadOnly(  )
+{
+    Guard< Mutex > aGuard( m_mutex );
+    try
+    {
+        if ( m_localReg.is() && m_localReg->isValid() )
+            return m_localReg->isReadOnly();
+    }
+    catch(InvalidRegistryException& )
+    {
+    }
+
+    return false;
+}
+
+
+void SAL_CALL NestedRegistryImpl::mergeKey( const OUString&, const OUString& )
+{
+    throw css::uno::RuntimeException("css.registry.NestedRegistry::mergeKey: not implemented");
+}
+
+} // namespace
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_NestedRegistry_get_implementation(
+    SAL_UNUSED_PARAMETER css::uno::XComponentContext *,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new NestedRegistryImpl);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/implementationregistration/implreg.cxx b/stoc/source/implementationregistration/implreg.cxx
new file mode 100644
index 0000000000..ca8c6b2673
--- /dev/null
+++ b/stoc/source/implementationregistration/implreg.cxx
@@ -0,0 +1,1580 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <string.h>
+#include <string_view>
+#include <vector>
+
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <comphelper/sequence.hxx>
+#include <rtl/ustring.hxx>
+
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/loader/XImplementationLoader.hpp>
+#include <com/sun/star/registry/XImplementationRegistration2.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/reflection/XServiceTypeDescription.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include "mergekeys.hxx"
+
+#if defined(_WIN32)
+#include <io.h>
+#endif
+
+
+using namespace com::sun::star;
+using namespace css::uno;
+using namespace css::loader;
+using namespace css::beans;
+using namespace css::lang;
+using namespace css::registry;
+using namespace cppu;
+using namespace osl;
+
+namespace {
+
+constexpr OUString slash_UNO_slash_REGISTRY_LINKS
+        = u"/UNO/REGISTRY_LINKS"_ustr;
+constexpr OUString slash_IMPLEMENTATIONS
+        =  u"/IMPLEMENTATIONS"_ustr;
+constexpr OUString slash_UNO
+        = u"/UNO"_ustr;
+constexpr OUString slash_UNO_slash_SERVICES
+        = u"/UNO/SERVICES"_ustr;
+constexpr OUString slash_UNO_slash_SINGLETONS
+        = u"/UNO/SINGLETONS"_ustr;
+constexpr OUString slash_SERVICES
+        = u"/SERVICES/"_ustr;
+constexpr OUString slash_UNO_slash_LOCATION
+        = u"/UNO/LOCATION"_ustr;
+constexpr OUString slash_UNO_slash_ACTIVATOR
+        = u"/UNO/ACTIVATOR"_ustr;
+constexpr OUString colon_old
+        = u":old"_ustr;
+constexpr OUStringLiteral com_sun_star_registry_SimpleRegistry
+        = u"com.sun.star.registry.SimpleRegistry";
+constexpr OUString Registry
+        = u"Registry"_ustr;
+
+//  static deleteAllLinkReferences()
+
+void deleteAllLinkReferences(const Reference < XSimpleRegistry >& xReg,
+                                    const Reference < XRegistryKey >& xSource)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    Reference < XRegistryKey > xKey = xSource->openKey(
+        slash_UNO_slash_REGISTRY_LINKS );
+
+    if (!(xKey.is() && (xKey->getValueType() == RegistryValueType_ASCIILIST)))
+        return;
+
+    const Sequence<OUString> linkNames = xKey->getAsciiListValue();
+
+    if (!linkNames.hasElements())
+        return;
+
+    OUString            aLinkName;
+    OUString            aLinkParent;
+    Reference < XRegistryKey >  xLinkParent;
+    const sal_Unicode*  pTmpName = nullptr;
+    const sal_Unicode*  pShortName = nullptr;
+    sal_Int32           sEnd = 0;
+
+    for (const OUString& rLinkName : linkNames)
+    {
+        aLinkName = rLinkName;
+
+        pTmpName = aLinkName.getStr();
+
+        if (pTmpName[0] != L'/')
+            continue;
+
+        sal_Int32 nIndex = rtl_ustr_indexOfChar( pTmpName, '%' );
+        if ( nIndex == -1 )
+            pShortName = nullptr;
+        else
+            pShortName = pTmpName+nIndex;
+
+        while (pShortName && pShortName[1] == L'%')
+        {
+            nIndex = rtl_ustr_indexOfChar( pShortName+2, '%' );
+            if ( nIndex == -1 )
+                pShortName = nullptr;
+            else
+                pShortName += nIndex+2;
+        }
+
+        if (pShortName)
+        {
+            aLinkName = aLinkName.copy(0, pShortName - pTmpName);
+        }
+
+        xReg->getRootKey()->deleteLink(aLinkName);
+
+        sEnd = aLinkName.lastIndexOf( '/' );
+
+        aLinkParent = aLinkName.copy(0, sEnd);
+
+        while(!aLinkParent.isEmpty())
+        {
+            xLinkParent = xReg->getRootKey()->openKey(aLinkParent);
+
+            if (xLinkParent.is() && !xLinkParent->getKeyNames().hasElements())
+            {
+                aLinkName = aLinkParent;
+
+                xReg->getRootKey()->deleteKey(aLinkParent);
+
+                sEnd = aLinkName.lastIndexOf( '/' );
+
+                aLinkParent = aLinkName.copy(0, sEnd);
+            }
+            else
+            {
+                break;
+            }
+        }
+    }
+}
+
+
+//  static prepareLink
+
+void prepareLink( const Reference < XSimpleRegistry > & xDest,
+                         const Reference < XRegistryKey > & xSource,
+                         const OUString& link)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    OUString linkRefName = xSource->getKeyName();
+    OUString linkName(link);
+    bool    isRelativ = false;
+
+    const sal_Unicode*  pTmpName = link.getStr();
+    const sal_Unicode*  pShortName;
+    sal_Int32           nIndex = rtl_ustr_indexOfChar( pTmpName, '%' );
+    if ( nIndex == -1 )
+        pShortName = nullptr;
+    else
+        pShortName = pTmpName+nIndex;
+
+    if (pTmpName[0] != L'/')
+        isRelativ = true;
+
+    while (pShortName && pShortName[1] == L'%')
+    {
+        nIndex = rtl_ustr_indexOfChar( pShortName+2, '%' );
+        if ( nIndex == -1 )
+            pShortName = nullptr;
+        else
+            pShortName += nIndex+2;
+    }
+
+    if (pShortName)
+    {
+        linkRefName += link.subView(pShortName - pTmpName + 1);
+        linkName = link.copy(0, pShortName - pTmpName);
+    }
+
+    if (isRelativ)
+        xSource->createLink(linkName, linkRefName);
+    else
+        xDest->getRootKey()->createLink(linkName, linkRefName);
+}
+
+
+//  static searchImplForLink
+
+OUString searchImplForLink(
+    const Reference < XRegistryKey > & xRootKey,
+    std::u16string_view linkName,
+    std::u16string_view implName )
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    Reference < XRegistryKey > xKey = xRootKey->openKey( slash_IMPLEMENTATIONS );
+    if (xKey.is())
+    {
+        const Sequence< Reference < XRegistryKey > > subKeys( xKey->openKeys() );
+        OUString key_name( slash_UNO + linkName );
+
+        for (const Reference < XRegistryKey >& xImplKey : subKeys)
+        {
+            try
+            {
+                if (xImplKey->getKeyType( key_name ) == RegistryKeyType_LINK)
+                {
+                    OUString oldImplName = xImplKey->getKeyName().copy(strlen("/IMPLEMENTATIONS/"));
+                    if (implName != oldImplName)
+                    {
+                        return oldImplName;
+                    }
+                }
+            }
+            catch(InvalidRegistryException&)
+            {
+            }
+        }
+    }
+
+    return OUString();
+}
+
+
+//  static searchLinkTargetForImpl
+
+OUString searchLinkTargetForImpl(const Reference < XRegistryKey >& xRootKey,
+                                        std::u16string_view linkName,
+                                        const OUString& implName)
+{
+    Reference < XRegistryKey > xKey = xRootKey->openKey( slash_IMPLEMENTATIONS );
+
+    if (xKey.is())
+    {
+        const Sequence< Reference < XRegistryKey > > subKeys = xKey->openKeys();
+
+        OUString qualifiedLinkName( slash_UNO + linkName );
+
+        auto pSubKey = std::find_if(subKeys.begin(), subKeys.end(),
+            [&implName, &qualifiedLinkName](const Reference<XRegistryKey>& rSubKey) {
+                OUString tmpImplName = rSubKey->getKeyName().copy(strlen("/IMPLEMENTATIONS/"));
+                return tmpImplName == implName
+                    && rSubKey->getKeyType( qualifiedLinkName ) == RegistryKeyType_LINK;
+            });
+        if (pSubKey != subKeys.end())
+            return (*pSubKey)->getLinkTarget( qualifiedLinkName );
+    }
+
+    return OUString();
+}
+
+
+//  static createUniqueSubEntry
+
+void createUniqueSubEntry(const Reference < XRegistryKey > & xSuperKey,
+                                 const OUString& value)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    if (!xSuperKey.is())
+        return;
+
+    if (xSuperKey->getValueType() == RegistryValueType_ASCIILIST)
+    {
+        const Sequence<OUString> implEntries = xSuperKey->getAsciiListValue();
+        sal_Int32 length = implEntries.getLength();
+
+        bool bReady = comphelper::findValue(implEntries, value) != -1;
+
+        if (bReady)
+        {
+            Sequence<OUString> implEntriesNew(length);
+            auto it = implEntriesNew.getArray();
+            *it = value;
+
+            std::copy_if(implEntries.begin(), implEntries.end(), std::next(it),
+                [&value](const OUString& rEntry) { return rEntry != value; });
+            xSuperKey->setAsciiListValue(implEntriesNew);
+        } else
+        {
+            Sequence<OUString> implEntriesNew(length+1);
+            auto it = implEntriesNew.getArray();
+            *it = value;
+
+            std::copy(implEntries.begin(), implEntries.end(), std::next(it));
+            xSuperKey->setAsciiListValue(implEntriesNew);
+        }
+    } else
+    {
+        Sequence<OUString> implEntriesNew { value };
+
+        xSuperKey->setAsciiListValue(implEntriesNew);
+    }
+}
+
+
+//  static deleteSubEntry
+
+bool deleteSubEntry(const Reference < XRegistryKey >& xSuperKey, const OUString& value)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    if (xSuperKey->getValueType() == RegistryValueType_ASCIILIST)
+    {
+        const Sequence<OUString> implEntries = xSuperKey->getAsciiListValue();
+        sal_Int32 length = implEntries.getLength();
+        sal_Int32 equals = static_cast<sal_Int32>(std::count(implEntries.begin(), implEntries.end(), value));
+        bool hasNoImplementations = false;
+
+        if (equals == length)
+        {
+            hasNoImplementations = true;
+        } else
+        {
+            Sequence<OUString> implEntriesNew(length - equals);
+
+            std::copy_if(implEntries.begin(), implEntries.end(), implEntriesNew.getArray(),
+                [&value](const OUString& rEntry) { return rEntry != value; });
+            xSuperKey->setAsciiListValue(implEntriesNew);
+        }
+
+        if (hasNoImplementations)
+        {
+            return true;
+        }
+    }
+    return false;
+}
+
+
+//  static prepareUserLink
+
+void prepareUserLink(const Reference < XSimpleRegistry >& xDest,
+                                const OUString& linkName,
+                                const OUString& linkTarget,
+                                std::u16string_view implName)
+{
+    Reference < XRegistryKey > xRootKey = xDest->getRootKey();
+
+    if (xRootKey->getKeyType(linkName) == RegistryKeyType_LINK)
+    {
+        OUString oldImplName(searchImplForLink(xRootKey, linkName, implName));
+
+        if (!oldImplName.isEmpty())
+        {
+            createUniqueSubEntry(xDest->getRootKey()->createKey(
+                linkName + colon_old ), oldImplName);
+        }
+    }
+
+    if (xRootKey->isValid())
+        xRootKey->createLink(linkName, linkTarget);
+}
+
+
+//  static deleteUserLink
+
+void deletePathIfPossible(const Reference < XRegistryKey >& xRootKey,
+                                 const OUString& path)
+{
+    try
+    {
+        Sequence<OUString> keyNames(xRootKey->openKey(path)->getKeyNames());
+
+        if (!keyNames.hasElements() &&
+            xRootKey->openKey(path)->getValueType() == RegistryValueType_NOT_DEFINED)
+        {
+            xRootKey->deleteKey(path);
+
+            OUString newPath = path.copy(0, path.lastIndexOf('/'));
+
+            if (newPath.getLength() > 1)
+                deletePathIfPossible(xRootKey, newPath);
+        }
+    }
+    catch(InvalidRegistryException&)
+    {
+    }
+}
+
+
+//  static deleteUserLink
+
+void deleteUserLink(const Reference < XRegistryKey >& xRootKey,
+                               const OUString& linkName,
+                               std::u16string_view linkTarget,
+                               const OUString& implName)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    bool bClean = false;
+
+    if (xRootKey->getKeyType(linkName) == RegistryKeyType_LINK)
+    {
+        OUString tmpTarget = xRootKey->getLinkTarget(linkName);
+
+        if (tmpTarget == linkTarget)
+        {
+            xRootKey->deleteLink(linkName);
+        }
+    }
+
+    Reference < XRegistryKey > xOldKey = xRootKey->openKey(
+        linkName + colon_old );
+    if (xOldKey.is())
+    {
+        if (xOldKey->getValueType() == RegistryValueType_ASCIILIST)
+        {
+            const Sequence<OUString> implEntries = xOldKey->getAsciiListValue();
+            sal_Int32 length = implEntries.getLength();
+            sal_Int32 equals = static_cast<sal_Int32>(std::count(implEntries.begin(), implEntries.end(), implName));
+            bool hasNoImplementations = false;
+
+            if (equals == length)
+            {
+                hasNoImplementations = true;
+            } else
+            {
+                OUString oldImpl;
+
+                if (length > equals + 1)
+                {
+                    Sequence<OUString> implEntriesNew(length - equals - 1);
+                    auto pNewArray = implEntriesNew.getArray();
+
+                    sal_Int32 j = 0;
+                    bool first = true;
+                    for (sal_Int32 i = 0; i < length; i++)
+                    {
+                        if (implEntries[i] != implName)
+                        {
+                            if (first)
+                            {
+                                oldImpl = implEntries[i];
+                                first = false;
+                            } else
+                            {
+                                pNewArray[j++] = implEntries[i];
+                            }
+                        }
+                    }
+
+                    xOldKey->setAsciiListValue(implEntriesNew);
+                } else
+                {
+                    oldImpl = implEntries[0];
+                    OUString path(xOldKey->getKeyName());
+                    xOldKey->closeKey();
+                    xRootKey->deleteKey(path);
+                }
+
+                OUString oldTarget = searchLinkTargetForImpl(xRootKey, linkName, oldImpl);
+                if (!oldTarget.isEmpty())
+                {
+                    xRootKey->createLink(linkName, oldTarget);
+                }
+            }
+
+            if (hasNoImplementations)
+            {
+                bClean = true;
+                OUString path(xOldKey->getKeyName());
+                xOldKey->closeKey();
+                xRootKey->deleteKey(path);
+            }
+        }
+    } else
+    {
+        bClean = true;
+    }
+
+    if (bClean)
+    {
+        OUString path = linkName.copy(0, linkName.lastIndexOf('/'));
+        deletePathIfPossible(xRootKey, path);
+    }
+}
+
+
+//  static prepareUserKeys
+
+void prepareUserKeys(const Reference < XSimpleRegistry >& xDest,
+                                const Reference < XRegistryKey >& xUnoKey,
+                                const Reference < XRegistryKey >& xKey,
+                                const OUString& implName,
+                                bool bRegister)
+{
+    bool hasSubKeys = false;
+
+    Sequence<OUString> keyNames = xKey->getKeyNames();
+
+    OUString relativKey;
+    if (keyNames.hasElements())
+        relativKey = keyNames.getConstArray()[0].copy(xKey->getKeyName().getLength()+1);
+
+    if (keyNames.getLength() == 1 &&
+        xKey->getKeyType(relativKey) == RegistryKeyType_LINK)
+    {
+        hasSubKeys = true;
+
+        OUString linkTarget = xKey->getLinkTarget(relativKey);
+        OUString linkName(
+            OUString::Concat(xKey->getKeyName().subView(xUnoKey->getKeyName().getLength()))
+            + "/" + relativKey);
+
+        if (bRegister)
+        {
+            prepareUserLink(xDest, linkName, linkTarget, implName);
+        } else
+        {
+            deleteUserLink(xDest->getRootKey(), linkName, linkTarget, implName);
+        }
+    } else
+    {
+        const Sequence< Reference < XRegistryKey> > subKeys = xKey->openKeys();
+
+        if (subKeys.hasElements())
+        {
+            hasSubKeys = true;
+
+            for (const Reference < XRegistryKey > & rSubKey : subKeys)
+            {
+                prepareUserKeys(xDest, xUnoKey, rSubKey, implName, bRegister);
+            }
+        }
+    }
+
+    if (hasSubKeys)
+        return;
+
+    OUString keyName(xKey->getKeyName().copy(xUnoKey->getKeyName().getLength()));
+
+    Reference < XRegistryKey > xRootKey = xDest->getRootKey();
+    if (bRegister)
+    {
+        createUniqueSubEntry(xRootKey->createKey(keyName), implName);
+    }
+    else
+    {
+        Reference< XRegistryKey > rKey = xRootKey->openKey(keyName);
+        if( rKey.is() )
+        {
+            deleteSubEntry(rKey, implName);
+            xRootKey->deleteKey(keyName);
+        }
+
+        OUString path = keyName.copy(0, keyName.lastIndexOf('/'));
+        if( !path.isEmpty() )
+        {
+            deletePathIfPossible(xRootKey, path);
+        }
+    }
+}
+
+
+//  static deleteAllImplementations
+
+void deleteAllImplementations(   const Reference < XSimpleRegistry >& xReg,
+                                        const Reference < XRegistryKey >& xSource,
+                                        std::u16string_view locationUrl,
+                                        std::vector<OUString> & implNames)
+    // throw (InvalidRegistryException, RuntimeException)
+{
+    Sequence < Reference < XRegistryKey > > subKeys = xSource->openKeys();
+
+    if (subKeys.hasElements())
+    {
+        bool hasLocationUrl = false;
+
+        for (const Reference < XRegistryKey> & xImplKey : std::as_const(subKeys))
+        {
+            Reference < XRegistryKey > xKey = xImplKey->openKey(
+                slash_UNO_slash_LOCATION );
+
+            if (xKey.is() && (xKey->getValueType() == RegistryValueType_ASCII))
+            {
+                if (xKey->getAsciiValue() == locationUrl)
+                {
+                    hasLocationUrl = true;
+
+                    OUString implName(xImplKey->getKeyName().copy(1));
+                    sal_Int32 firstDot = implName.indexOf('/');
+
+                    if (firstDot >= 0)
+                        implName = implName.copy(firstDot + 1);
+
+                    implNames.push_back(implName);
+
+                    deleteAllLinkReferences(xReg, xImplKey);
+
+                    xKey = xImplKey->openKey( slash_UNO );
+                    if (xKey.is())
+                    {
+                        const Sequence< Reference < XRegistryKey > > subKeys2 = xKey->openKeys();
+
+                        for (const Reference < XRegistryKey > & rSubKey2 : subKeys2)
+                        {
+                            if (rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_SERVICES ) &&
+                                rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_REGISTRY_LINKS ) &&
+                                rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_ACTIVATOR ) &&
+                                rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_SINGLETONS ) &&
+                                rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_LOCATION) )
+                            {
+                                prepareUserKeys(xReg, xKey, rSubKey2, implName, false);
+                            }
+                        }
+                    }
+                }
+            }
+
+            if (hasLocationUrl)
+            {
+                hasLocationUrl = false;
+                OUString path(xImplKey->getKeyName());
+                xImplKey->closeKey();
+                xReg->getRootKey()->deleteKey(path);
+            }
+        }
+
+        subKeys = xSource->openKeys();
+        if (!subKeys.hasElements())
+        {
+            OUString path(xSource->getKeyName());
+            xSource->closeKey();
+            xReg->getRootKey()->deleteKey(path);
+        }
+    } else
+    {
+        OUString path(xSource->getKeyName());
+        xSource->closeKey();
+        xReg->getRootKey()->deleteKey(path);
+    }
+}
+
+
+void delete_all_singleton_entries(
+    Reference < registry::XRegistryKey > const & xSingletons_section,
+    ::std::vector< OUString > const & impl_names )
+    // throw (InvalidRegistryException, RuntimeException)
+{
+    Sequence< Reference< registry::XRegistryKey > > singletons( xSingletons_section->openKeys() );
+    Reference< registry::XRegistryKey > const * subkeys = singletons.getConstArray();
+    for ( sal_Int32 nPos = singletons.getLength(); nPos--; )
+    {
+        Reference< registry::XRegistryKey > const & xSingleton = subkeys[ nPos ];
+        Reference< registry::XRegistryKey > xRegisteredImplNames(
+            xSingleton->openKey( "REGISTERED_BY" ) );
+        if (xRegisteredImplNames.is() && xRegisteredImplNames->isValid())
+        {
+            Sequence< OUString > registered_implnames;
+            try
+            {
+                registered_implnames = xRegisteredImplNames->getAsciiListValue();
+            }
+            catch (registry::InvalidValueException &)
+            {
+            }
+            auto aNonConstRange = asNonConstRange(registered_implnames);
+            sal_Int32 nOrigRegLength = registered_implnames.getLength();
+            sal_Int32 nNewLength = nOrigRegLength;
+            for ( sal_Int32 n = nOrigRegLength; n--; )
+            {
+                OUString const & registered_implname = registered_implnames[ n ];
+
+                for (auto const& impl_name : impl_names)
+                {
+                    if (impl_name == registered_implname)
+                    {
+                        aNonConstRange[ n ] = registered_implnames[ nNewLength -1 ];
+                        --nNewLength;
+                    }
+                }
+            }
+
+            if (nNewLength != nOrigRegLength)
+            {
+                if (0 == nNewLength)
+                {
+                    // remove whole entry
+                    xRegisteredImplNames->closeKey();
+                    xSingleton->deleteKey( "REGISTERED_BY" );
+                    // registry key cannot provide its relative name, only absolute :(
+                    OUString abs( xSingleton->getKeyName() );
+                    xSingletons_section->deleteKey( abs.copy( abs.lastIndexOf( '/' ) +1 ) );
+                }
+                else
+                {
+                    registered_implnames.realloc( nNewLength );
+                    xRegisteredImplNames->setAsciiListValue( registered_implnames );
+                }
+            }
+        }
+    }
+}
+
+
+//  static deleteAllServiceEntries
+
+void deleteAllServiceEntries(    const Reference < XSimpleRegistry >& xReg,
+                                        const Reference < XRegistryKey >& xSource,
+                                        const OUString& implName)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    Sequence< Reference < XRegistryKey > > subKeys = xSource->openKeys();
+
+    if (subKeys.hasElements())
+    {
+        bool hasNoImplementations = false;
+
+        for (const Reference < XRegistryKey > & xServiceKey : std::as_const(subKeys))
+        {
+            if (xServiceKey->getValueType() == RegistryValueType_ASCIILIST)
+            {
+                const Sequence<OUString> implEntries = xServiceKey->getAsciiListValue();
+                sal_Int32 length = implEntries.getLength();
+                sal_Int32 equals = static_cast<sal_Int32>(std::count(implEntries.begin(), implEntries.end(), implName));
+
+                if (equals == length)
+                {
+                    hasNoImplementations = true;
+                } else
+                {
+                    if (equals > 0)
+                    {
+                        Sequence<OUString> implEntriesNew(length-equals);
+
+                        std::copy_if(implEntries.begin(), implEntries.end(), implEntriesNew.getArray(),
+                            [&implName](const OUString& rEntry) { return rEntry != implName; });
+
+                        xServiceKey->setAsciiListValue(implEntriesNew);
+                    }
+                }
+            }
+
+            if (hasNoImplementations)
+            {
+                hasNoImplementations = false;
+                OUString path(xServiceKey->getKeyName());
+                xServiceKey->closeKey();
+                xReg->getRootKey()->deleteKey(path);
+            }
+        }
+
+        subKeys = xSource->openKeys();
+        if (!subKeys.hasElements())
+        {
+            OUString path(xSource->getKeyName());
+            xSource->closeKey();
+            xReg->getRootKey()->deleteKey(path);
+        }
+    } else
+    {
+        OUString path(xSource->getKeyName());
+        xSource->closeKey();
+        xReg->getRootKey()->deleteKey(path);
+    }
+}
+
+
+bool is_supported_service(
+    OUString const & service_name,
+    Reference< reflection::XServiceTypeDescription > const & xService_td )
+{
+    if (xService_td->getName() == service_name)
+        return true;
+    const Sequence< Reference< reflection::XServiceTypeDescription > > seq(
+        xService_td->getMandatoryServices() );
+    return std::any_of(seq.begin(), seq.end(), [&service_name](const auto& rService) {
+        return is_supported_service( service_name, rService ); });
+}
+
+
+void insert_singletons(
+    Reference< registry::XSimpleRegistry > const & xDest,
+    Reference< registry::XRegistryKey > const & xImplKey,
+    Reference< XComponentContext > const & xContext )
+    // throw( registry::InvalidRegistryException, registry::CannotRegisterImplementationException, RuntimeException )
+{
+    // singletons
+    Reference< registry::XRegistryKey > xKey( xImplKey->openKey( "UNO/SINGLETONS" ) );
+    if (!(xKey.is() && xKey->isValid()))
+        return;
+
+    OUString implname( xImplKey->getKeyName().copy( sizeof ("/IMPLEMENTATIONS/") -1 ) );
+    // singleton entries
+    Sequence< Reference< registry::XRegistryKey > > xSingletons_section( xKey->openKeys() );
+    Reference< registry::XRegistryKey > const * p = xSingletons_section.getConstArray();
+    for ( sal_Int32 nPos = xSingletons_section.getLength(); nPos--; )
+    {
+        Reference< registry::XRegistryKey > const & xSingleton = p[ nPos ];
+        OUString singleton_name(
+            xSingleton->getKeyName().copy(
+                implname.getLength() + sizeof ("/IMPLEMENTATIONS//UNO/SINGLETONS/") -1 ) );
+        OUString service_name( xSingleton->getStringValue() );
+
+        OUString keyname( "/SINGLETONS/" + singleton_name );
+        Reference< registry::XRegistryKey > xKey2( xDest->getRootKey()->openKey( keyname ) );
+        if (xKey2.is() && xKey2->isValid())
+        {
+            try
+            {
+                OUString existing_name( xKey2->getStringValue() );
+                if ( existing_name != service_name )
+                {
+                    Reference< container::XHierarchicalNameAccess > xTDMgr;
+                    OUString the_tdmgr =
+                        "/singletons/com.sun.star.reflection.theTypeDescriptionManager";
+                    xContext->getValueByName( the_tdmgr ) >>= xTDMgr;
+                    if (! xTDMgr.is())
+                    {
+                        throw RuntimeException( "cannot get singleton " + the_tdmgr );
+                    }
+                    try
+                    {
+                        Reference< reflection::XServiceTypeDescription > xExistingService_td;
+                        xTDMgr->getByHierarchicalName( existing_name ) >>= xExistingService_td;
+                        if (! xExistingService_td.is())
+                        {
+                            throw RuntimeException( "cannot get service type description: " + existing_name );
+                        }
+
+                        // everything's fine if existing service entry supports the one
+                        // to be registered
+                        if (! is_supported_service( service_name, xExistingService_td ))
+                        {
+                            throw registry::CannotRegisterImplementationException(
+                                "existing singleton service (" + singleton_name + "=" + existing_name + ") "
+                                " does not support given one: " + service_name);
+                        }
+                    }
+                    catch (const container::NoSuchElementException & exc)
+                    {
+                        css::uno::Any anyEx = cppu::getCaughtException();
+                        throw css::lang::WrappedTargetRuntimeException(
+                                "cannot get service type description: " + exc.Message,
+                                nullptr, anyEx );
+                    }
+                }
+            }
+            catch (registry::InvalidValueException &)
+            {
+                // repair
+                xKey2->setStringValue( service_name );
+            }
+        }
+        else
+        {
+            // insert singleton entry
+            xKey2 = xDest->getRootKey()->createKey( keyname );
+            xKey2->setStringValue( service_name );
+        }
+
+        Reference< registry::XRegistryKey > xRegisteredImplNames(
+            xKey2->openKey( "REGISTERED_BY" ) );
+        if (!xRegisteredImplNames.is() || !xRegisteredImplNames->isValid())
+        {
+            // create
+            xRegisteredImplNames = xKey2->createKey( "REGISTERED_BY" );
+        }
+
+        Sequence< OUString > implnames;
+        try
+        {
+            implnames = xRegisteredImplNames->getAsciiListValue();
+        }
+        catch (registry::InvalidValueException &)
+        {
+        }
+        // check implname is already in
+        if (comphelper::findValue(implnames, implname) == -1)
+        {
+            // append and write back
+            implnames.realloc( implnames.getLength() +1 );
+            implnames.getArray()[ implnames.getLength() -1 ] = implname;
+            xRegisteredImplNames->setAsciiListValue( implnames );
+        }
+    }
+}
+
+
+//  static prepareRegistry
+
+void prepareRegistry(
+    const Reference < XSimpleRegistry >& xDest,
+    const Reference < XRegistryKey >& xSource,
+    const OUString& implementationLoaderUrl,
+    const OUString& locationUrl,
+    Reference< XComponentContext > const & xContext )
+    // throw ( InvalidRegistryException, CannotRegisterImplementationException, RuntimeException )
+{
+    const Sequence< Reference < XRegistryKey > > subKeys = xSource->openKeys();
+
+    if (!subKeys.hasElements())
+    {
+        throw InvalidRegistryException(
+            "prepareRegistry(): source registry is empty" );
+    }
+
+    for (const Reference < XRegistryKey >& xImplKey : subKeys)
+    {
+        Reference < XRegistryKey >  xKey = xImplKey->openKey(
+            slash_UNO_slash_SERVICES );
+
+        if (xKey.is())
+        {
+            // update entries in SERVICES section
+            const Sequence< Reference < XRegistryKey > > serviceKeys = xKey->openKeys();
+
+            OUString implName = xImplKey->getKeyName().copy(1);
+            sal_Int32 firstDot = implName.indexOf('/');
+
+            if (firstDot >= 0)
+                implName = implName.copy(firstDot + 1);
+
+            sal_Int32 offset = xKey->getKeyName().getLength() + 1;
+
+            for (const Reference < XRegistryKey >& rServiceKey : serviceKeys)
+            {
+                OUString serviceName = rServiceKey->getKeyName().copy(offset);
+
+                createUniqueSubEntry(
+                    xDest->getRootKey()->createKey(
+                        slash_SERVICES + serviceName ),
+                    implName);
+            }
+
+            xKey = xImplKey->openKey( slash_UNO );
+            if (xKey.is())
+            {
+                const Sequence< Reference < XRegistryKey > > subKeys2 = xKey->openKeys();
+
+                for (const Reference < XRegistryKey >& rSubKey2 : subKeys2)
+                {
+                    if (rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_SERVICES) &&
+                        rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_REGISTRY_LINKS ) &&
+                        rSubKey2->getKeyName() != Concat2View(xImplKey->getKeyName() + slash_UNO_slash_SINGLETONS ))
+                    {
+                        prepareUserKeys(xDest, xKey, rSubKey2, implName, true);
+                    }
+                }
+            }
+        }
+
+        // update LOCATION entry
+        xKey = xImplKey->createKey( slash_UNO_slash_LOCATION );
+
+        if (xKey.is())
+        {
+            xKey->setAsciiValue(locationUrl);
+        }
+
+        // update ACTIVATOR entry
+        xKey = xImplKey->createKey( slash_UNO_slash_ACTIVATOR );
+
+        if (xKey.is())
+        {
+            xKey->setAsciiValue(implementationLoaderUrl);
+        }
+
+        xKey = xImplKey->openKey( slash_UNO_slash_SERVICES );
+
+        if (xKey.is() && (xKey->getValueType() == RegistryValueType_ASCIILIST))
+        {
+            // update link entries in REGISTRY_LINKS section
+            const Sequence<OUString> linkNames = xKey->getAsciiListValue();
+
+            for (const OUString& rLinkName : linkNames)
+            {
+                prepareLink(xDest, xImplKey, rLinkName);
+            }
+        }
+
+        insert_singletons( xDest, xImplKey, xContext );
+    }
+}
+
+
+void findImplementations(    const Reference < XRegistryKey > & xSource,
+                                    std::vector<OUString>& implNames)
+{
+    bool isImplKey = false;
+
+    try
+    {
+        Reference < XRegistryKey > xKey = xSource->openKey(
+            slash_UNO_slash_SERVICES );
+
+        if (xKey.is() && xKey->getKeyNames().hasElements())
+        {
+            isImplKey = true;
+
+            OUString implName = xSource->getKeyName().copy(1).replace('/', '.');
+            sal_Int32 firstDot = implName.indexOf('.');
+
+            if (firstDot >= 0)
+                implName = implName.copy(firstDot + 1);
+
+            implNames.push_back(implName);
+        }
+    }
+    catch(InvalidRegistryException&)
+    {
+    }
+
+    if (isImplKey) return;
+
+    try
+    {
+        const Sequence< Reference < XRegistryKey > > subKeys = xSource->openKeys();
+
+        for (const Reference < XRegistryKey >& rSubKey : subKeys)
+        {
+            findImplementations(rSubKey, implNames);
+        }
+    }
+    catch(InvalidRegistryException&)
+    {
+    }
+}
+
+
+class ImplementationRegistration
+    : public WeakImplHelper< XImplementationRegistration2, XServiceInfo, XInitialization >
+{
+public:
+    explicit ImplementationRegistration( const Reference < XComponentContext > & rSMgr );
+
+    // XServiceInfo
+    OUString                        SAL_CALL getImplementationName() override;
+    sal_Bool                        SAL_CALL supportsService(const OUString& ServiceName) override;
+    Sequence< OUString >            SAL_CALL getSupportedServiceNames() override;
+
+    // XImplementationRegistration
+    virtual void SAL_CALL registerImplementation(
+        const OUString& implementationLoader,
+        const OUString& location,
+        const Reference < XSimpleRegistry > & xReg) override;
+
+    virtual sal_Bool SAL_CALL revokeImplementation(
+        const OUString& location,
+        const Reference < XSimpleRegistry >& xReg) override;
+
+    virtual Sequence< OUString > SAL_CALL getImplementations(
+        const OUString& implementationLoader,
+        const OUString& location) override;
+    virtual Sequence< OUString > SAL_CALL checkInstantiation(
+        const OUString& implementationName) override;
+
+    // XImplementationRegistration2
+    virtual void SAL_CALL registerImplementationWithLocation(
+        const OUString& implementationLoader,
+        const OUString& location,
+        const OUString& registeredLocation,
+        const Reference < XSimpleRegistry > & xReg) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize(
+        const css::uno::Sequence< css::uno::Any >& aArguments ) override;
+
+private: // helper methods
+    void prepareRegister(
+        const OUString& implementationLoader,
+        const OUString& location,
+        const OUString& registeredLocation,
+        const Reference < XSimpleRegistry > & xReg);
+    // throw( CannotRegisterImplementationException, RuntimeException )
+
+    static void doRegister( const Reference < XMultiComponentFactory >& xSMgr,
+                            const Reference < XComponentContext > &xCtx,
+                            const Reference < XImplementationLoader >& xAct,
+                            const Reference < XSimpleRegistry >& xDest,
+                            const OUString& implementationLoaderUrl,
+                            const OUString& locationUrl,
+                            const OUString& registeredLocationUrl);
+        /* throw ( InvalidRegistryException,
+                   MergeConflictException,
+                   CannotRegisterImplementationException, RuntimeException ) */
+
+    static void doRevoke( const Reference < XSimpleRegistry >& xDest,
+                          std::u16string_view locationUrl );
+        // throw( InvalidRegistryException, RuntimeException )
+    Reference< XSimpleRegistry > getRegistryFromServiceManager() const;
+
+    static Reference< XSimpleRegistry > createTemporarySimpleRegistry(
+        const Reference< XMultiComponentFactory > &rSMgr,
+        const Reference < XComponentContext > & rCtx );
+
+private: // members
+    Reference < XMultiComponentFactory >    m_xSMgr;
+    Reference < XComponentContext >         m_xCtx;
+};
+
+
+// ImplementationRegistration()
+
+ImplementationRegistration::ImplementationRegistration( const Reference < XComponentContext > & xCtx )
+    : m_xSMgr( xCtx->getServiceManager() )
+    , m_xCtx( xCtx )
+{}
+
+// XServiceInfo
+OUString ImplementationRegistration::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.ImplementationRegistration";
+}
+
+// XServiceInfo
+sal_Bool ImplementationRegistration::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+// XServiceInfo
+Sequence< OUString > ImplementationRegistration::getSupportedServiceNames()
+{
+    return { "com.sun.star.registry.ImplementationRegistration" };
+}
+
+Reference< XSimpleRegistry > ImplementationRegistration::getRegistryFromServiceManager() const
+{
+    Reference < XPropertySet > xPropSet( m_xSMgr, UNO_QUERY );
+    Reference < XSimpleRegistry > xRegistry;
+
+    if( xPropSet.is() ) {
+
+        try {  // the implementation does not support XIntrospectionAccess !
+
+            Any aAny = xPropSet->getPropertyValue( Registry );
+
+            if( aAny.getValueType().getTypeClass() == TypeClass_INTERFACE ) {
+                aAny >>= xRegistry;
+            }
+         }
+         catch( UnknownPropertyException & ) {
+             // empty reference is error signal !
+        }
+    }
+
+    return xRegistry;
+}
+
+
+// XInitialization
+
+void ImplementationRegistration::initialize(
+    const css::uno::Sequence< css::uno::Any >& aArgs )
+{
+
+    if( aArgs.getLength() != 4 ) {
+        throw IllegalArgumentException(
+            "ImplementationRegistration::initialize() expects 4 parameters, got "  + OUString::number( aArgs.getLength() ),
+            Reference<XInterface > (), 0 );
+    }
+
+    Reference< XImplementationLoader > rLoader;
+    OUString loaderServiceName;
+    OUString locationUrl;
+    Reference< XSimpleRegistry > rReg;
+
+    // 1st argument : An instance of an implementation loader
+    if( aArgs.getConstArray()[0].getValueType().getTypeClass() == TypeClass_INTERFACE ) {
+        aArgs.getConstArray()[0] >>= rLoader;
+    }
+    if( !rLoader.is()) {
+        throw IllegalArgumentException(
+            "ImplementationRegistration::initialize() invalid first parameter,"
+            "expected " + cppu::UnoType<decltype(rLoader)>::get().getTypeName() +
+            ", got " + aArgs.getConstArray()[0].getValueTypeName(),
+            Reference< XInterface > (), 0 );
+    }
+
+    // 2nd argument : The service name of the loader. This name is written into the registry
+    if( aArgs.getConstArray()[1].getValueType().getTypeClass() == TypeClass_STRING ) {
+        aArgs.getConstArray()[1] >>= loaderServiceName;
+    }
+    if( loaderServiceName.isEmpty() ) {
+        throw IllegalArgumentException(
+            "ImplementationRegistration::initialize() invalid second parameter,"
+            "expected string, got " + aArgs.getConstArray()[1].getValueTypeName(),
+            Reference< XInterface > (), 0 );
+    }
+
+    // 3rd argument : The file name of the dll, that contains the loader
+    if( aArgs.getConstArray()[2].getValueType().getTypeClass() == TypeClass_STRING ) {
+        aArgs.getConstArray()[2] >>= locationUrl;
+    }
+    if( locationUrl.isEmpty() ) {
+        throw IllegalArgumentException(
+            "ImplementationRegistration::initialize() invalid third parameter,"
+            "expected string, got " + aArgs.getConstArray()[2].getValueTypeName(),
+            Reference< XInterface > (), 0 );
+    }
+
+    // 4th argument : The registry, the service should be written to
+    if( aArgs.getConstArray()[3].getValueType().getTypeClass() == TypeClass_INTERFACE ) {
+        aArgs.getConstArray()[3] >>= rReg;
+    }
+
+    if( !rReg.is() ) {
+        rReg = getRegistryFromServiceManager();
+        if( !rReg.is() ) {
+            throw IllegalArgumentException(
+                "ImplementationRegistration::initialize() invalid fourth parameter,"
+                "expected " + cppu::UnoType<decltype(rReg)>::get().getTypeName() +
+                ", got " + aArgs.getConstArray()[3].getValueTypeName(),
+                Reference< XInterface > (), 0 );
+        }
+    }
+
+    doRegister(m_xSMgr, m_xCtx, rLoader , rReg, loaderServiceName , locationUrl, locationUrl);
+}
+
+
+// virtual function registerImplementationWithLocation of XImplementationRegistration2
+
+void ImplementationRegistration::registerImplementationWithLocation(
+    const OUString& implementationLoaderUrl,
+    const OUString& locationUrl,
+    const OUString& registeredLocationUrl,
+    const Reference < XSimpleRegistry > & xReg)
+{
+    prepareRegister(
+        implementationLoaderUrl, locationUrl, registeredLocationUrl, xReg);
+}
+
+// helper function
+void ImplementationRegistration::prepareRegister(
+    const OUString& implementationLoaderUrl,
+    const OUString& locationUrl,
+    const OUString& registeredLocationUrl,
+    const Reference < XSimpleRegistry > & xReg)
+    // throw( CannotRegisterImplementationException, RuntimeException )
+{
+    OUString activatorName;
+
+    if (!implementationLoaderUrl.isEmpty())
+    {
+        activatorName = implementationLoaderUrl.getToken(0, ':');
+    } else
+    {
+        // check locationUrl to find out what kind of loader is needed
+        // set implLoaderUrl
+    }
+
+    if( !m_xSMgr.is() )    {
+        throw CannotRegisterImplementationException(
+                "ImplementationRegistration::registerImplementation() "
+                "no componentcontext available to instantiate loader" );
+    }
+
+    try
+    {
+        Reference < XImplementationLoader > xAct(
+            m_xSMgr->createInstanceWithContext(activatorName, m_xCtx) , UNO_QUERY );
+        if (!xAct.is())
+        {
+            throw CannotRegisterImplementationException(
+                "ImplementationRegistration::registerImplementation() - The service "
+                + activatorName + " cannot be instantiated" );
+        }
+
+        Reference < XSimpleRegistry > xRegistry;
+
+        if (xReg.is())
+        {
+            // registry supplied by user
+            xRegistry = xReg;
+        }
+        else
+        {
+            xRegistry = getRegistryFromServiceManager();
+        }
+
+        if ( xRegistry.is())
+        {
+            doRegister(m_xSMgr, m_xCtx, xAct, xRegistry, implementationLoaderUrl,
+                       locationUrl, registeredLocationUrl);
+        }
+
+    }
+    catch( CannotRegisterImplementationException & )
+    {
+        throw;
+    }
+    catch( const InvalidRegistryException & e )
+    {
+        throw CannotRegisterImplementationException(
+            "ImplementationRegistration::registerImplementation() "
+            "InvalidRegistryException during registration (" + e.Message + ")" );
+    }
+    catch( const MergeConflictException & e )
+    {
+        throw CannotRegisterImplementationException(
+            "ImplementationRegistration::registerImplementation() "
+            "MergeConflictException during registration (" + e.Message + ")" );
+    }
+
+}
+
+
+// virtual function registerImplementation of XImplementationRegistration
+
+void ImplementationRegistration::registerImplementation(
+    const OUString& implementationLoaderUrl,
+    const OUString& locationUrl,
+    const Reference < XSimpleRegistry > & xReg)
+{
+    prepareRegister(implementationLoaderUrl, locationUrl, locationUrl, xReg);
+}
+
+
+// virtual function revokeImplementation of XImplementationRegistration
+
+sal_Bool ImplementationRegistration::revokeImplementation(const OUString& location,
+                                                      const Reference < XSimpleRegistry >& xReg)
+{
+    bool ret = false;
+
+    Reference < XSimpleRegistry > xRegistry;
+
+    if (xReg.is()) {
+        xRegistry = xReg;
+    }
+    else {
+        Reference < XPropertySet > xPropSet( m_xSMgr, UNO_QUERY );
+        if( xPropSet.is() ) {
+            try {
+                Any aAny = xPropSet->getPropertyValue( Registry );
+
+                if( aAny.getValueType().getTypeClass() == TypeClass_INTERFACE )
+                {
+                    aAny >>= xRegistry;
+                }
+            }
+            catch ( UnknownPropertyException & ) {
+            }
+        }
+    }
+
+    if (xRegistry.is())
+    {
+        try
+        {
+            doRevoke(xRegistry, location);
+            ret = true;
+        }
+        catch( InvalidRegistryException & )
+        {
+            // no way to transport the error, as no exception is specified and a runtime
+            // exception is not appropriate.
+            OSL_FAIL( "InvalidRegistryException during revokeImplementation" );
+        }
+    }
+
+    return ret;
+}
+
+
+// virtual function getImplementations of XImplementationRegistration
+
+Sequence< OUString > ImplementationRegistration::getImplementations(
+    const OUString & implementationLoaderUrl,
+    const OUString & locationUrl)
+{
+    OUString activatorName;
+
+    if (!implementationLoaderUrl.isEmpty())
+    {
+        activatorName = implementationLoaderUrl.getToken(0, ':');
+    } else
+    {
+        // check locationUrl to find out what kind of loader is needed
+        // set implementationLoaderUrl
+    }
+
+    if( m_xSMgr.is() ) {
+
+        Reference < XImplementationLoader > xAct(
+            m_xSMgr->createInstanceWithContext( activatorName, m_xCtx ), UNO_QUERY );
+
+        if (xAct.is())
+        {
+
+            Reference < XSimpleRegistry > xReg =
+                createTemporarySimpleRegistry( m_xSMgr, m_xCtx);
+
+            if (xReg.is())
+            {
+                try
+                {
+                    xReg->open(OUString() /* in mem */, false, true);
+                    Reference < XRegistryKey > xImpl;
+
+                    { // only necessary for deleting the temporary variable of rootkey
+                        xImpl = xReg->getRootKey()->createKey( slash_IMPLEMENTATIONS );
+                    }
+                    if (xAct->writeRegistryInfo(xImpl, implementationLoaderUrl, locationUrl))
+                    {
+                        std::vector<OUString> implNames;
+
+                        findImplementations(xImpl, implNames);
+
+                        if (!implNames.empty())
+                        {
+                            Sequence<OUString> seqImpl(comphelper::containerToSequence(implNames));
+                            xImpl->closeKey();
+                            return seqImpl;
+                        }
+                    }
+
+                    xImpl->closeKey();
+                }
+                catch(MergeConflictException&)
+                {
+                }
+                catch(InvalidRegistryException&)
+                {
+                }
+            }
+        }
+    }
+
+    return Sequence<OUString>();
+}
+
+
+// virtual function checkInstantiation of XImplementationRegistration
+
+Sequence< OUString > ImplementationRegistration::checkInstantiation(const OUString&)
+{
+    OSL_FAIL( "ImplementationRegistration::checkInstantiation not implemented" );
+    return Sequence<OUString>();
+}
+
+
+// helper function doRegistration
+
+
+void ImplementationRegistration::doRevoke(
+    const Reference < XSimpleRegistry >& xDest,
+    std::u16string_view locationUrl)
+    // throw ( InvalidRegistryException, RuntimeException )
+{
+    if( !xDest.is() )
+        return;
+
+    std::vector<OUString> aNames;
+
+    Reference < XRegistryKey > xRootKey( xDest->getRootKey() );
+
+    Reference < XRegistryKey > xKey =
+        xRootKey->openKey( slash_IMPLEMENTATIONS );
+    if (xKey.is() && xKey->isValid())
+    {
+        deleteAllImplementations(xDest, xKey, locationUrl, aNames);
+    }
+
+    xKey = xRootKey->openKey( slash_SERVICES );
+    if (xKey.is())
+    {
+        for (auto const& name : aNames)
+        {
+            deleteAllServiceEntries(xDest, xKey, name);
+        }
+    }
+
+    xKey = xRootKey->openKey( "/SINGLETONS" );
+    if (xKey.is() && xKey->isValid())
+    {
+        delete_all_singleton_entries( xKey, aNames );
+    }
+
+    if (xRootKey.is())
+        xRootKey->closeKey();
+    if (xKey.is() && xKey->isValid() )
+        xKey->closeKey();
+}
+
+void ImplementationRegistration::doRegister(
+    const Reference< XMultiComponentFactory > & xSMgr,
+    const Reference< XComponentContext > &xCtx,
+    const Reference < XImplementationLoader > & xAct,
+    const Reference < XSimpleRegistry >& xDest,
+    const OUString& implementationLoaderUrl,
+    const OUString& locationUrl,
+    const OUString& registeredLocationUrl)
+    /* throw ( InvalidRegistryException,
+               MergeConflictException,
+               CannotRegisterImplementationException, RuntimeException ) */
+{
+    Reference < XSimpleRegistry >   xReg =
+        createTemporarySimpleRegistry( xSMgr, xCtx );
+    Reference < XRegistryKey >      xSourceKey;
+
+    if (!(xAct.is() && xReg.is() && xDest.is()))
+        return;
+
+    try
+    {
+        xReg->open(OUString() /* in mem */, false, true);
+
+        { // only necessary for deleting the temporary variable of rootkey
+            xSourceKey = xReg->getRootKey()->createKey( slash_IMPLEMENTATIONS );
+        }
+
+        bool bSuccess =
+            xAct->writeRegistryInfo(xSourceKey, implementationLoaderUrl, locationUrl);
+        if ( !bSuccess )
+        {
+            throw CannotRegisterImplementationException(
+                "ImplementationRegistration::doRegistration() component registration signaled failure" );
+        }
+
+        prepareRegistry(xDest, xSourceKey, implementationLoaderUrl, registeredLocationUrl, xCtx);
+
+        xSourceKey->closeKey();
+
+        xSourceKey = xReg->getRootKey();
+        Reference < XRegistryKey > xDestKey = xDest->getRootKey();
+        stoc_impreg::mergeKeys( xDestKey, xSourceKey );
+        xDestKey->closeKey();
+        xSourceKey->closeKey();
+
+
+        // Cleanup Source registry.
+        if ( xSourceKey->isValid() )
+            xSourceKey->closeKey();
+    }
+    catch(CannotRegisterImplementationException&)
+    {
+        if ( xSourceKey->isValid() )
+            xSourceKey->closeKey();
+        // and throw again
+        throw;
+    }
+}
+
+
+Reference< XSimpleRegistry > ImplementationRegistration::createTemporarySimpleRegistry(
+    const Reference< XMultiComponentFactory > &rSMgr,
+    const Reference < XComponentContext > & xCtx)
+{
+
+    Reference < XSimpleRegistry > xReg(
+        rSMgr->createInstanceWithContext(
+            com_sun_star_registry_SimpleRegistry,   xCtx ),
+        UNO_QUERY);
+    OSL_ASSERT( xReg.is() );
+    return xReg;
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_ImplementationRegistration_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new ImplementationRegistration(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/implementationregistration/mergekeys.cxx b/stoc/source/implementationregistration/mergekeys.cxx
new file mode 100644
index 0000000000..dde219b9ad
--- /dev/null
+++ b/stoc/source/implementationregistration/mergekeys.cxx
@@ -0,0 +1,177 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <utility>
+#include <vector>
+
+#include <osl/diagnose.h>
+
+#include <com/sun/star/registry/XRegistryKey.hpp>
+
+#include "mergekeys.hxx"
+
+using namespace ::osl;
+using namespace css::uno;
+using namespace ::com::sun::star;
+
+namespace stoc_impreg
+{
+
+namespace {
+
+struct Link
+{
+    OUString m_name;
+    OUString m_target;
+
+    Link( OUString name, OUString target )
+        : m_name(std::move( name ))
+        , m_target(std::move( target ))
+        {}
+};
+
+}
+
+typedef ::std::vector< Link > t_links;
+
+
+static void mergeKeys(
+    Reference< registry::XRegistryKey > const & xDest,
+    Reference< registry::XRegistryKey > const & xSource,
+    t_links & links )
+    // throw( registry::InvalidRegistryException, registry::MergeConflictException, RuntimeException )
+{
+    if (!xSource.is() || !xSource->isValid()) {
+        throw registry::InvalidRegistryException(
+            "source key is null or invalid!" );
+    }
+    if (!xDest.is() || !xDest->isValid()) {
+        throw registry::InvalidRegistryException(
+            "destination key is null or invalid!" );
+    }
+
+    // write value
+    switch (xSource->getValueType())
+    {
+    case registry::RegistryValueType_NOT_DEFINED:
+        break;
+    case registry::RegistryValueType_LONG:
+        xDest->setLongValue( xSource->getLongValue() );
+        break;
+    case registry::RegistryValueType_ASCII:
+        xDest->setAsciiValue( xSource->getAsciiValue() );
+        break;
+    case registry::RegistryValueType_STRING:
+        xDest->setStringValue( xSource->getStringValue() );
+        break;
+    case registry::RegistryValueType_BINARY:
+        xDest->setBinaryValue( xSource->getBinaryValue() );
+        break;
+    case registry::RegistryValueType_LONGLIST:
+        xDest->setLongListValue( xSource->getLongListValue() );
+        break;
+    case registry::RegistryValueType_ASCIILIST:
+        xDest->setAsciiListValue( xSource->getAsciiListValue() );
+        break;
+    case registry::RegistryValueType_STRINGLIST:
+        xDest->setStringListValue( xSource->getStringListValue() );
+        break;
+    default:
+        OSL_ASSERT(false);
+        break;
+    }
+
+    // sub keys
+    Sequence< OUString > sourceKeys( xSource->getKeyNames() );
+    OUString const * pSourceKeys = sourceKeys.getConstArray();
+    for ( sal_Int32 nPos = sourceKeys.getLength(); nPos--; )
+    {
+        // key name
+        OUString name( pSourceKeys[ nPos ] );
+        sal_Int32 nSlash = name.lastIndexOf( '/' );
+        if (nSlash >= 0)
+        {
+            name = name.copy( nSlash +1 );
+        }
+
+        if (xSource->getKeyType( name ) == registry::RegistryKeyType_KEY)
+        {
+            // try to open existing dest key or create new one
+            Reference< registry::XRegistryKey > xDestKey( xDest->createKey( name ) );
+            Reference< registry::XRegistryKey > xSourceKey( xSource->openKey( name ) );
+            mergeKeys( xDestKey, xSourceKey, links );
+            xSourceKey->closeKey();
+            xDestKey->closeKey();
+        }
+        else // link
+        {
+            // remove existing key
+            Reference< registry::XRegistryKey > xDestKey( xDest->openKey( name ) );
+            if (xDestKey.is() && xDestKey->isValid()) // something to remove
+            {
+                xDestKey->closeKey();
+                if (xDest->getKeyType( name ) == registry::RegistryKeyType_LINK)
+                {
+                    xDest->deleteLink( name );
+                }
+                else
+                {
+                    xDest->deleteKey( name );
+                }
+            }
+
+            links.push_back( Link(
+                pSourceKeys[ nPos ], // abs path
+                xSource->getResolvedName( name ) // abs resolved name
+                ) );
+        }
+    }
+}
+
+
+void mergeKeys(
+    Reference< registry::XRegistryKey > const & xDest,
+    Reference< registry::XRegistryKey > const & xSource )
+    // throw( registry::InvalidRegistryException, registry::MergeConflictException, RuntimeException )
+{
+    if (!xDest.is() || !xDest->isValid()) {
+        throw registry::InvalidRegistryException(
+            "destination key is null or invalid!" );
+    }
+    if (xDest->isReadOnly())
+    {
+        throw registry::InvalidRegistryException(
+            "destination registry is read-only!  cannot merge!" );
+    }
+
+    t_links links;
+    links.reserve( 16 );
+    mergeKeys( xDest, xSource, links );
+
+    for ( size_t nPos = links.size(); nPos--; )
+    {
+        Link const & r = links[ nPos ];
+        OSL_VERIFY( xDest->createLink( r.m_name, r.m_target ) );
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/implementationregistration/mergekeys.hxx b/stoc/source/implementationregistration/mergekeys.hxx
new file mode 100644
index 0000000000..3f54e57124
--- /dev/null
+++ b/stoc/source/implementationregistration/mergekeys.hxx
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STOC_SOURCE_IMPLEMENTATIONREGISTRATION_MERGEKEYS_HXX
+#define INCLUDED_STOC_SOURCE_IMPLEMENTATIONREGISTRATION_MERGEKEYS_HXX
+
+#include <sal/config.h>
+#include <sal/types.h>
+
+namespace com::sun::star::registry {
+    class XRegistryKey;
+}
+namespace com::sun::star::uno { template <typename > class Reference; }
+
+namespace stoc_impreg {
+
+// throws css::registry::InvalidRegistryException,
+// css::registry::MergeConflictException,
+// css::uno::RuntimeException:
+void mergeKeys(
+    css::uno::Reference< css::registry::XRegistryKey >
+        const & xDest,
+    css::uno::Reference< css::registry::XRegistryKey >
+        const & xSource);
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/inspect/introspection.component b/stoc/source/inspect/introspection.component
new file mode 100644
index 0000000000..84e121fad1
--- /dev/null
+++ b/stoc/source/inspect/introspection.component
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.Introspection"
+      constructor="com_sun_star_comp_stoc_Introspection_get_implementation"
+      single-instance="true">
+    <service name="com.sun.star.beans.Introspection"/>
+    <singleton name="com.sun.star.beans.theIntrospection"/>
+  </implementation>
+</component>
diff --git a/stoc/source/inspect/introspection.cxx b/stoc/source/inspect/introspection.cxx
new file mode 100644
index 0000000000..eb06b66568
--- /dev/null
+++ b/stoc/source/inspect/introspection.cxx
@@ -0,0 +1,2420 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <cstddef>
+#include <limits>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <set>
+
+#include <o3tl/any.hxx>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <comphelper/sequence.hxx>
+#include <salhelper/simplereferenceobject.hxx>
+
+#include <com/sun/star/lang/NoSuchMethodException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XUnoTunnel.hpp>
+#include <com/sun/star/reflection/XIdlReflection.hpp>
+#include <com/sun/star/reflection/XIdlClass.hpp>
+#include <com/sun/star/reflection/XIdlField2.hpp>
+#include <com/sun/star/reflection/theCoreReflection.hpp>
+#include <com/sun/star/beans/UnknownPropertyException.hpp>
+#include <com/sun/star/beans/Property.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/XFastPropertySet.hpp>
+#include <com/sun/star/beans/XIntrospection.hpp>
+#include <com/sun/star/beans/XIntrospectionAccess.hpp>
+#include <com/sun/star/beans/XMaterialHolder.hpp>
+#include <com/sun/star/beans/XExactName.hpp>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/beans/PropertyConcept.hpp>
+#include <com/sun/star/beans/MethodConcept.hpp>
+#include <com/sun/star/container/XNameContainer.hpp>
+#include <com/sun/star/container/XIndexContainer.hpp>
+#include <com/sun/star/container/XEnumerationAccess.hpp>
+
+#include <rtl/ref.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <unordered_map>
+#include <utility>
+
+using namespace css::uno;
+using namespace css::lang;
+using namespace css::reflection;
+using namespace css::container;
+using namespace css::beans;
+using namespace css::beans::PropertyAttribute;
+using namespace css::beans::PropertyConcept;
+using namespace css::beans::MethodConcept;
+using namespace cppu;
+using namespace osl;
+
+namespace
+{
+
+typedef WeakImplHelper< XIntrospectionAccess, XMaterialHolder, XExactName,
+                        XPropertySet, XFastPropertySet, XPropertySetInfo,
+                        XNameContainer, XIndexContainer, XEnumerationAccess,
+                        XIdlArray, XUnoTunnel > IntrospectionAccessHelper;
+
+
+// Special value for Method-Concept, to be able to mark "normal" functions
+#define  MethodConcept_NORMAL_IMPL        0x80000000
+
+
+// Method to assert, if a class is derived from another class
+bool isDerivedFrom( const Reference<XIdlClass>& xToTestClass, const Reference<XIdlClass>& xDerivedFromClass )
+{
+    const Sequence< Reference<XIdlClass> > aClassesSeq = xToTestClass->getSuperclasses();
+
+    return std::any_of(aClassesSeq.begin(), aClassesSeq.end(),
+        [&xDerivedFromClass](const Reference<XIdlClass>& rxClass) {
+            return xDerivedFromClass->equals( rxClass )
+                || isDerivedFrom( rxClass, xDerivedFromClass );
+        });
+}
+
+
+// *** Classification of Properties (no enum, to be able to use Sequence) ***
+// Properties from a PropertySet-Interface
+#define MAP_PROPERTY_SET    0
+// Properties from Fields
+#define MAP_FIELD            1
+// Properties that get described with get/set methods
+#define MAP_GETSET            2
+// Properties with only a set method
+#define MAP_SETONLY            3
+
+
+// Increments by which the size of sequences get adjusted
+#define ARRAY_SIZE_STEP        20
+
+
+//*** IntrospectionAccessStatic_Impl ***
+
+// Equals to the old IntrospectionAccessImpl, forms now a static
+// part of the new Instance-related ImplIntrospectionAccess
+
+// Hashtable for the search of names
+typedef std::unordered_map
+<
+    OUString,
+    sal_Int32
+>
+IntrospectionNameMap;
+
+
+// Hashtable to assign exact names to the Lower-Case
+// converted names, for the support of XExactName
+typedef std::unordered_map
+<
+    OUString,
+    OUString
+>
+LowerToExactNameMap;
+
+
+class IntrospectionAccessStatic_Impl: public salhelper::SimpleReferenceObject
+{
+    friend class Implementation;
+    friend class ImplIntrospectionAccess;
+
+    // Holding CoreReflection
+    Reference< XIdlReflection > mxCoreReflection;
+
+    // InterfaceSequences, to save additional information in a property
+    // for example the Field at MAP_FIELD, the get/set-Methods at MAP_GETSET, et cetera
+    std::vector< Reference<XInterface> > aInterfaceSeq1;
+    std::vector< Reference<XInterface> > aInterfaceSeq2;
+
+    // Hashtables for names
+    IntrospectionNameMap maPropertyNameMap;
+    IntrospectionNameMap maMethodNameMap;
+    LowerToExactNameMap  maLowerToExactNameMap;
+
+    // Vector of all Properties, also for delivering from getProperties()
+    std::vector<Property> maAllPropertySeq;
+
+    // Mapping of properties to Access-Types
+    std::vector<sal_Int16> maMapTypeSeq;
+
+    // Classification of found methods
+    std::vector<sal_Int32> maPropertyConceptSeq;
+
+    // Number of Properties
+    sal_Int32 mnPropCount;
+
+    // Number of Properties, which are assigned to particular concepts
+    //sal_Int32 mnDangerousPropCount;
+    sal_Int32 mnPropertySetPropCount;
+    sal_Int32 mnAttributePropCount;
+    sal_Int32 mnMethodPropCount;
+
+    // Flags which indicate if various interfaces are present
+    bool mbFastPropSet;
+    bool mbElementAccess;
+    bool mbNameAccess;
+    bool mbNameReplace;
+    bool mbNameContainer;
+    bool mbIndexAccess;
+    bool mbIndexReplace;
+    bool mbIndexContainer;
+    bool mbEnumerationAccess;
+    bool mbIdlArray;
+    bool mbUnoTunnel;
+
+    // Original handles of FastPropertySets
+    std::unique_ptr<sal_Int32[]> mpOrgPropertyHandleArray;
+
+    // MethodSequence, that accepts all methods
+    std::vector< Reference<XIdlMethod> > maAllMethodSeq;
+
+    // Classification of found methods
+    std::vector<sal_Int32> maMethodConceptSeq;
+
+    // Number of methods
+    sal_Int32 mnMethCount;
+
+    // Sequence of Listener, that can be registered
+    std::vector< Type > maSupportedListenerSeq;
+
+    // Helper-methods for adjusting sizes of Sequences
+    void checkPropertyArraysSize( sal_Int32 iNextIndex );
+    static void checkInterfaceArraySize( std::vector< Reference<XInterface> >& rSeq, std::vector<Reference<XInterface>>& rInterfaceVec,
+        sal_Int32 iNextIndex );
+
+public:
+    explicit IntrospectionAccessStatic_Impl( Reference< XIdlReflection > const & xCoreReflection_ );
+    sal_Int32 getPropertyIndex( const OUString& aPropertyName ) const;
+    sal_Int32 getMethodIndex( const OUString& aMethodName ) const;
+
+    // Methods of XIntrospectionAccess (OLD, now only Impl)
+    void setPropertyValue(const Any& obj, const OUString& aPropertyName, const Any& aValue) const;
+//    void setPropertyValue(Any& obj, const OUString& aPropertyName, const Any& aValue) const;
+    Any getPropertyValue(const Any& obj, const OUString& aPropertyName) const;
+    void setPropertyValueByIndex(const Any& obj, sal_Int32 nIndex, const Any& aValue) const;
+//    void setPropertyValueByIndex(Any& obj, sal_Int32 nIndex, const Any& aValue) const;
+    Any getPropertyValueByIndex(const Any& obj, sal_Int32 nIndex) const;
+
+    const std::vector<Property>& getProperties() const              { return maAllPropertySeq; }
+    const std::vector< Reference<XIdlMethod> >& getMethods() const  { return maAllMethodSeq; }
+    const std::vector< Type >& getSupportedListeners() const        { return maSupportedListenerSeq; }
+    const std::vector<sal_Int32>& getPropertyConcepts() const       { return maPropertyConceptSeq; }
+    const std::vector<sal_Int32>& getMethodConcepts() const         { return maMethodConceptSeq; }
+};
+
+
+// Ctor
+IntrospectionAccessStatic_Impl::IntrospectionAccessStatic_Impl( Reference< XIdlReflection > const & xCoreReflection_ )
+    : mxCoreReflection( xCoreReflection_ )
+{
+    aInterfaceSeq1.resize( ARRAY_SIZE_STEP );
+    aInterfaceSeq2.resize( ARRAY_SIZE_STEP );
+
+    // Property-Data
+    maAllPropertySeq.resize( ARRAY_SIZE_STEP );
+    maMapTypeSeq.resize( ARRAY_SIZE_STEP );
+    maPropertyConceptSeq.resize( ARRAY_SIZE_STEP );
+
+    mbFastPropSet = false;
+    mbElementAccess = false;
+    mbNameAccess = false;
+    mbNameReplace = false;
+    mbNameContainer = false;
+    mbIndexAccess = false;
+    mbIndexReplace = false;
+    mbIndexContainer = false;
+    mbEnumerationAccess = false;
+    mbIdlArray = false;
+    mbUnoTunnel = false;
+
+    mpOrgPropertyHandleArray = nullptr;
+
+    mnPropCount = 0;
+    //mnDangerousPropCount = 0;
+    mnPropertySetPropCount = 0;
+    mnAttributePropCount = 0;
+    mnMethodPropCount = 0;
+
+    // Method-Data
+    mnMethCount = 0;
+}
+
+sal_Int32 IntrospectionAccessStatic_Impl::getPropertyIndex( const OUString& aPropertyName ) const
+{
+    auto aIt = maPropertyNameMap.find(aPropertyName);
+    if (aIt != maPropertyNameMap.end())
+        return aIt->second;
+
+    return -1;
+}
+
+sal_Int32 IntrospectionAccessStatic_Impl::getMethodIndex( const OUString& aMethodName ) const
+{
+    auto aIt = maMethodNameMap.find(aMethodName);
+    if (aIt != maMethodNameMap.end())
+    {
+        return aIt->second;
+    }
+
+    // #95159 Check if full qualified name matches
+    sal_Int32 nSearchFrom = aMethodName.getLength();
+    while( true )
+    {
+        // Strategy: Search back until the first '_' is found
+        sal_Int32 nFound = aMethodName.lastIndexOf( '_', nSearchFrom );
+        if( nFound == -1 )
+            break;
+
+        OUString aPureMethodName = aMethodName.copy( nFound + 1 );
+
+        aIt = maMethodNameMap.find( aPureMethodName );
+        if (aIt != maMethodNameMap.end())
+        {
+            // Check if it can be a type?
+            // Problem: Does not work if package names contain _ ?!
+            OUString aStr = aMethodName.copy( 0, nFound );
+            OUString aTypeName = aStr.replace( '_', '.' );
+            Reference< XIdlClass > xClass = mxCoreReflection->forName( aTypeName );
+            if( xClass.is() )
+            {
+                // If this is a valid class it could be the right method
+
+                // Could be the right method, type has to be checked
+                const sal_Int32 iHashResult = aIt->second;
+
+                const Reference<XIdlMethod> xMethod = maAllMethodSeq[iHashResult];
+
+                Reference< XIdlClass > xMethClass = xMethod->getDeclaringClass();
+                if( xClass->equals( xMethClass ) )
+                {
+                    return iHashResult;
+                }
+                else
+                {
+                    // Could also be another method with the same name
+                    // Iterate over all methods
+                    size_t nLen = maAllMethodSeq.size();
+                    for (size_t i = 0; i < nLen; ++i)
+                    {
+                        const Reference<XIdlMethod> xMethod2 = maAllMethodSeq[ i ];
+                        if( xMethod2->getName() == aPureMethodName )
+                        {
+                            Reference< XIdlClass > xMethClass2 = xMethod2->getDeclaringClass();
+
+                            if( xClass->equals( xMethClass2 ) )
+                            {
+                                return i;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        nSearchFrom = nFound - 1;
+        if( nSearchFrom < 0 )
+            break;
+    }
+    return -1;
+}
+
+void IntrospectionAccessStatic_Impl::setPropertyValue( const Any& obj, const OUString& aPropertyName, const Any& aValue ) const
+//void IntrospectionAccessStatic_Impl::setPropertyValue( Any& obj, const OUString& aPropertyName, const Any& aValue ) const
+{
+    sal_Int32 i = getPropertyIndex( aPropertyName );
+    if( i == -1 )
+        throw UnknownPropertyException(aPropertyName);
+    setPropertyValueByIndex( obj, i, aValue );
+}
+
+void IntrospectionAccessStatic_Impl::setPropertyValueByIndex(const Any& obj, sal_Int32 nSequenceIndex, const Any& aValue) const
+//void IntrospectionAccessStatic_Impl::setPropertyValueByIndex( Any& obj, sal_Int32 nSequenceIndex, const Any& aValue) const
+{
+    // Is the passed object something that fits?
+    Reference<XInterface> xInterface;
+    if( !(obj >>= xInterface) )
+    {
+        TypeClass eObjType = obj.getValueType().getTypeClass();
+        if( nSequenceIndex >= mnPropCount)
+            throw IllegalArgumentException(
+                "IntrospectionAccessStatic_Impl::setPropertyValueByIndex(), index > propertyCount, " +
+                OUString::number(nSequenceIndex) + " > " + OUString::number(mnPropCount),
+                Reference<XInterface>(), 0);
+        if( eObjType != TypeClass_STRUCT && eObjType != TypeClass_EXCEPTION )
+            throw IllegalArgumentException(
+                "IntrospectionAccessStatic_Impl::setPropertyValueByIndex(), expected struct or exception, got" +
+                obj.getValueType().getTypeName(), Reference<XInterface>(), 0);
+    }
+
+    // Test flags
+    if( (maAllPropertySeq[ nSequenceIndex ].Attributes & READONLY) != 0 )
+    {
+        throw UnknownPropertyException(
+            "IntrospectionAccessStatic_Impl::setPropertyValueByIndex(), property at index " + OUString::number(nSequenceIndex) + " is readonly");
+    }
+
+    switch( maMapTypeSeq[ nSequenceIndex ] )
+    {
+        case MAP_PROPERTY_SET:
+        {
+            // Get Property
+            const Property& rProp = maAllPropertySeq[ nSequenceIndex ];
+
+            // Convert Interface-Parameter to the correct type
+            bool bUseCopy = false;
+            Any aRealValue;
+
+            if( auto valInterface = o3tl::tryAccess<
+                    css::uno::Reference<css::uno::XInterface>>(aValue) )
+            {
+                Type aPropType = rProp.Type;
+                OUString aTypeName( aPropType.getTypeName() );
+                Reference< XIdlClass > xPropClass = mxCoreReflection->forName( aTypeName );
+                //Reference<XIdlClass> xPropClass = rProp.Type;
+                if( xPropClass.is() && xPropClass->getTypeClass() == TypeClass_INTERFACE )
+                {
+                    if( valInterface->is() )
+                    {
+                        //Any queryInterface( const Type& rType );
+                        aRealValue = (*valInterface)->queryInterface( aPropType );
+                        if( aRealValue.hasValue() )
+                            bUseCopy = true;
+                    }
+                }
+            }
+
+            // Do we have a FastPropertySet and a valid Handle?
+            // CAUTION: At this point we exploit that the PropertySet
+            // gets queried at the beginning of the Introspection-Process.
+            sal_Int32 nOrgHandle;
+            if( mbFastPropSet && ( nOrgHandle = mpOrgPropertyHandleArray[ nSequenceIndex ] ) != -1 )
+            {
+                // Retrieve PropertySet-Interface
+                Reference<XFastPropertySet> xFastPropSet =
+                    Reference<XFastPropertySet>::query( xInterface );
+                if( xFastPropSet.is() )
+                {
+                    xFastPropSet->setFastPropertyValue( nOrgHandle, bUseCopy ? aRealValue : aValue );
+                }
+                else
+                {
+                    // throw UnknownPropertyException
+                }
+            }
+            // else take the normal one
+            else
+            {
+                // Retrieve PropertySet-Interface
+                Reference<XPropertySet> xPropSet =
+                    Reference<XPropertySet>::query( xInterface );
+                if( xPropSet.is() )
+                {
+                    xPropSet->setPropertyValue( rProp.Name, bUseCopy ? aRealValue : aValue );
+                }
+                else
+                {
+                    // throw UnknownPropertyException
+                }
+            }
+        }
+        break;
+
+        case MAP_FIELD:
+        {
+            Reference<XIdlField> xField = static_cast<XIdlField*>(aInterfaceSeq1[ nSequenceIndex ].get());
+            Reference<XIdlField2> xField2(xField, UNO_QUERY);
+            if( xField2.is() )
+            {
+                xField2->set( const_cast<Any&>(obj), aValue );
+                // IllegalArgumentException
+                // NullPointerException
+            } else
+            if( xField.is() )
+            {
+                xField->set( obj, aValue );
+                // IllegalArgumentException
+                // NullPointerException
+            }
+            else
+            {
+                // throw IllegalArgumentException();
+            }
+        }
+        break;
+
+        case MAP_GETSET:
+        case MAP_SETONLY:
+        {
+            // Fetch set method
+            Reference<XIdlMethod> xMethod = static_cast<XIdlMethod*>(aInterfaceSeq2[ nSequenceIndex ].get());
+            if( xMethod.is() )
+            {
+                Sequence<Any> args( 1 );
+                args.getArray()[0] = aValue;
+                xMethod->invoke( obj, args );
+            }
+            else
+            {
+                // throw IllegalArgumentException();
+            }
+        }
+        break;
+    }
+}
+
+Any IntrospectionAccessStatic_Impl::getPropertyValue( const Any& obj, const OUString& aPropertyName ) const
+{
+    sal_Int32 i = getPropertyIndex( aPropertyName );
+    if( i != -1 )
+        return getPropertyValueByIndex( obj, i );
+
+    throw UnknownPropertyException(aPropertyName);
+}
+
+Any IntrospectionAccessStatic_Impl::getPropertyValueByIndex(const Any& obj, sal_Int32 nSequenceIndex) const
+{
+    Any aRet;
+
+    // Is there anything suitable in the passed object?
+    Reference<XInterface> xInterface;
+    if( !(obj >>= xInterface) )
+    {
+        TypeClass eObjType = obj.getValueType().getTypeClass();
+        if( nSequenceIndex >= mnPropCount || ( eObjType != TypeClass_STRUCT && eObjType != TypeClass_EXCEPTION ) )
+        {
+            // throw IllegalArgumentException();
+            return aRet;
+        }
+    }
+
+    switch( maMapTypeSeq[ nSequenceIndex ] )
+    {
+        case MAP_PROPERTY_SET:
+        {
+            // Acquire property
+            const Property& rProp = maAllPropertySeq[ nSequenceIndex ];
+
+            // Do we have a FastPropertySet and a valid handle?
+            // NOTE: At this point is exploited that the PropertySet
+            // is queried at the beginning of introspection process.
+            sal_Int32 nOrgHandle;
+            if( mbFastPropSet && ( nOrgHandle = mpOrgPropertyHandleArray[ nSequenceIndex ] ) != -1 )
+            {
+                // Fetch the PropertySet interface
+                Reference<XFastPropertySet> xFastPropSet =
+                    Reference<XFastPropertySet>::query( xInterface );
+                if( xFastPropSet.is() )
+                {
+                    aRet = xFastPropSet->getFastPropertyValue( nOrgHandle);
+                }
+                else
+                {
+                    // throw UnknownPropertyException
+                    return aRet;
+                }
+            }
+            // Otherwise use the normal one
+            else
+            {
+                // Fetch the PropertySet interface
+                Reference<XPropertySet> xPropSet =
+                    Reference<XPropertySet>::query( xInterface );
+                if( xPropSet.is() )
+                {
+                    aRet = xPropSet->getPropertyValue( rProp.Name );
+                }
+                else
+                {
+                    // throw UnknownPropertyException
+                    return aRet;
+                }
+            }
+        }
+        break;
+
+        case MAP_FIELD:
+        {
+            Reference<XIdlField> xField = static_cast<XIdlField*>(aInterfaceSeq1[ nSequenceIndex ].get());
+            if( xField.is() )
+            {
+                aRet = xField->get( obj );
+                // IllegalArgumentException
+                // NullPointerException
+            }
+            else
+            {
+                // throw IllegalArgumentException();
+                return aRet;
+            }
+        }
+        break;
+
+        case MAP_GETSET:
+        {
+            // Fetch get method
+            Reference<XIdlMethod> xMethod = static_cast<XIdlMethod*>(aInterfaceSeq1[ nSequenceIndex ].get());
+            if( xMethod.is() )
+            {
+                Sequence<Any> args;
+                aRet = xMethod->invoke( obj, args );
+            }
+            else
+            {
+                // throw IllegalArgumentException();
+                return aRet;
+            }
+        }
+        break;
+
+        case MAP_SETONLY:
+            // Get method does not exist
+            // throw WriteOnlyPropertyException();
+            return aRet;
+    }
+    return aRet;
+}
+
+
+// Helper method to adjust the size of the vectors
+void IntrospectionAccessStatic_Impl::checkPropertyArraysSize( sal_Int32 iNextIndex )
+{
+    sal_Int32 nLen = static_cast<sal_Int32>(maAllPropertySeq.size());
+    if( iNextIndex >= nLen )
+    {
+        maAllPropertySeq.resize( nLen + ARRAY_SIZE_STEP );
+        maMapTypeSeq.resize( nLen + ARRAY_SIZE_STEP );
+        maPropertyConceptSeq.resize( nLen + ARRAY_SIZE_STEP );
+    }
+}
+
+void IntrospectionAccessStatic_Impl::checkInterfaceArraySize( std::vector< Reference<XInterface> >& rSeq,
+    std::vector<Reference<XInterface>>& rInterfaceVec, sal_Int32 iNextIndex )
+{
+    sal_Int32 nLen = rSeq.size();
+    if( iNextIndex >= nLen )
+    {
+        // Synchronize new size with ARRAY_SIZE_STEP
+        sal_Int32 nMissingSize = iNextIndex - nLen + 1;
+        sal_Int32 nSteps = nMissingSize / ARRAY_SIZE_STEP + 1;
+        sal_Int32 nNewSize = nLen + nSteps * ARRAY_SIZE_STEP;
+
+        rSeq.resize( nNewSize );
+        rInterfaceVec = rSeq;
+    }
+}
+
+
+//*** ImplIntrospectionAccess ***
+
+
+// New Impl class as part of the introspection conversion to instance-bound
+// Introspection with property access via XPropertySet. The old class
+// ImplIntrospectionAccess lives on as IntrospectionAccessStatic_Impl
+class ImplIntrospectionAccess : public IntrospectionAccessHelper
+{
+    friend class Implementation;
+
+    // Object under examination
+    Any maInspectedObject;
+
+    // As interface
+    Reference<XInterface> mxIface;
+
+    // Static introspection data
+    rtl::Reference< IntrospectionAccessStatic_Impl > mpStaticImpl;
+
+    // Last Sequence that came with getProperties (optimization)
+    Sequence<Property> maLastPropertySeq;
+    sal_Int32 mnLastPropertyConcept;
+
+    // Last Sequence that came with getMethods (optimization)
+    Sequence<Reference<XIdlMethod> > maLastMethodSeq;
+    sal_Int32 mnLastMethodConcept;
+
+    // Guards the caching of queried interfaces
+    std::mutex m_aMutex;
+
+    // Original interfaces of the objects
+    Reference<XElementAccess>       mxObjElementAccess;
+    Reference<XNameContainer>       mxObjNameContainer;
+    Reference<XNameReplace>         mxObjNameReplace;
+    Reference<XNameAccess>          mxObjNameAccess;
+    Reference<XIndexContainer>      mxObjIndexContainer;
+    Reference<XIndexReplace>        mxObjIndexReplace;
+    Reference<XIndexAccess>         mxObjIndexAccess;
+    Reference<XEnumerationAccess>   mxObjEnumerationAccess;
+    Reference<XIdlArray>            mxObjIdlArray;
+
+    Reference<XElementAccess>       getXElementAccess();
+    Reference<XNameContainer>       getXNameContainer();
+    Reference<XNameReplace>         getXNameReplace();
+    Reference<XNameAccess>          getXNameAccess();
+    Reference<XIndexContainer>      getXIndexContainer();
+    Reference<XIndexReplace>        getXIndexReplace();
+    Reference<XIndexAccess>         getXIndexAccess();
+    Reference<XEnumerationAccess>   getXEnumerationAccess();
+    Reference<XIdlArray>            getXIdlArray();
+
+    void cacheXNameContainer();
+    void cacheXIndexContainer();
+
+public:
+    ImplIntrospectionAccess( Any obj, rtl::Reference< IntrospectionAccessStatic_Impl >  pStaticImpl_ );
+
+    // Methods from XIntrospectionAccess
+    virtual sal_Int32 SAL_CALL getSuppliedMethodConcepts() override;
+    virtual sal_Int32 SAL_CALL getSuppliedPropertyConcepts() override;
+    virtual Property SAL_CALL getProperty(const OUString& Name, sal_Int32 PropertyConcepts) override;
+    virtual sal_Bool SAL_CALL hasProperty(const OUString& Name, sal_Int32 PropertyConcepts) override;
+    virtual Sequence< Property > SAL_CALL getProperties(sal_Int32 PropertyConcepts) override;
+    virtual Reference<XIdlMethod> SAL_CALL getMethod(const OUString& Name, sal_Int32 MethodConcepts) override;
+    virtual sal_Bool SAL_CALL hasMethod(const OUString& Name, sal_Int32 MethodConcepts) override;
+    virtual Sequence< Reference<XIdlMethod> > SAL_CALL getMethods(sal_Int32 MethodConcepts) override;
+    virtual Sequence< Type > SAL_CALL getSupportedListeners() override;
+    using OWeakObject::queryAdapter;
+    virtual Reference<XInterface> SAL_CALL queryAdapter( const Type& rType ) override;
+
+    // Methods from XMaterialHolder
+    virtual Any SAL_CALL getMaterial() override;
+
+    // Methods from XExactName
+    virtual OUString SAL_CALL getExactName( const OUString& rApproximateName ) override;
+
+    // Methods from XInterface
+    virtual Any SAL_CALL queryInterface( const Type& rType ) override;
+    virtual void        SAL_CALL acquire() noexcept override { OWeakObject::acquire(); }
+    virtual void        SAL_CALL release() noexcept override { OWeakObject::release(); }
+
+    // Methods from XPropertySet
+    virtual Reference<XPropertySetInfo> SAL_CALL getPropertySetInfo() override;
+    virtual void SAL_CALL setPropertyValue(const OUString& aPropertyName, const Any& aValue) override;
+    virtual Any SAL_CALL getPropertyValue(const OUString& aPropertyName) override;
+    virtual void SAL_CALL addPropertyChangeListener(const OUString& aPropertyName, const Reference<XPropertyChangeListener>& aListener) override;
+    virtual void SAL_CALL removePropertyChangeListener(const OUString& aPropertyName, const Reference<XPropertyChangeListener>& aListener) override;
+    virtual void SAL_CALL addVetoableChangeListener(const OUString& aPropertyName, const Reference<XVetoableChangeListener>& aListener) override;
+    virtual void SAL_CALL removeVetoableChangeListener(const OUString& aPropertyName, const Reference<XVetoableChangeListener>& aListener) override;
+
+    // Methods from XFastPropertySet
+    virtual void SAL_CALL setFastPropertyValue(sal_Int32 nHandle, const Any& aValue) override;
+    virtual Any SAL_CALL getFastPropertyValue(sal_Int32 nHandle) override;
+
+    // Methods from XPropertySetInfo
+    virtual Sequence< Property > SAL_CALL getProperties() override;
+    virtual Property SAL_CALL getPropertyByName(const OUString& Name) override;
+    virtual sal_Bool SAL_CALL hasPropertyByName(const OUString& Name) override;
+
+    // Methods from XElementAccess
+    virtual Type SAL_CALL getElementType() override;
+    virtual sal_Bool SAL_CALL hasElements() override;
+
+    // Methods from XNameAccess
+    virtual Any SAL_CALL getByName(const OUString& Name) override;
+    virtual Sequence< OUString > SAL_CALL getElementNames() override;
+    virtual sal_Bool SAL_CALL hasByName(const OUString& Name) override;
+
+    // Methods from XNameReplace
+    virtual void SAL_CALL replaceByName(const OUString& Name, const Any& Element) override;
+
+    // Methods from XNameContainer
+    virtual void SAL_CALL insertByName(const OUString& Name, const Any& Element) override;
+    virtual void SAL_CALL removeByName(const OUString& Name) override;
+
+    // Methods from XIndexAccess
+    virtual sal_Int32 SAL_CALL getCount() override;
+    virtual Any SAL_CALL getByIndex(sal_Int32 Index) override;
+
+    // Methods from XIndexReplace
+    virtual void SAL_CALL replaceByIndex(sal_Int32 Index, const Any& Element) override;
+
+    // Methods from XIndexContainer
+    virtual void SAL_CALL insertByIndex(sal_Int32 Index, const Any& Element) override;
+    virtual void SAL_CALL removeByIndex(sal_Int32 Index) override;
+
+    // Methods from XEnumerationAccess
+    virtual Reference<XEnumeration> SAL_CALL createEnumeration() override;
+
+    // Methods from XIdlArray
+    virtual void SAL_CALL realloc(Any& array, sal_Int32 length) override;
+    virtual sal_Int32 SAL_CALL getLen(const Any& array) override;
+    virtual Any SAL_CALL get(const Any& array, sal_Int32 index) override;
+    virtual void SAL_CALL set(Any& array, sal_Int32 index, const Any& value) override;
+
+    // Methods from XUnoTunnel
+    virtual sal_Int64 SAL_CALL getSomething( const Sequence< sal_Int8 >& aIdentifier ) override;
+};
+
+ImplIntrospectionAccess::ImplIntrospectionAccess
+    ( Any obj, rtl::Reference< IntrospectionAccessStatic_Impl >  pStaticImpl_ )
+        : maInspectedObject(std::move( obj )), mpStaticImpl(std::move( pStaticImpl_ )) ,
+          mnLastPropertyConcept(-1), mnLastMethodConcept(-1) //, maAdapter()
+{
+    // Save object as an interface if possible
+    maInspectedObject >>= mxIface;
+}
+
+Reference<XElementAccess> ImplIntrospectionAccess::getXElementAccess()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjElementAccess.is() )
+    {
+        aGuard.unlock();
+        Reference<XElementAccess> xElementAccess( mxIface, UNO_QUERY );
+        aGuard.lock();
+        if( !mxObjElementAccess.is() )
+            mxObjElementAccess = xElementAccess;
+    }
+    return mxObjElementAccess;
+}
+
+void ImplIntrospectionAccess::cacheXNameContainer()
+{
+    Reference<XNameContainer> xNameContainer;
+    Reference<XNameReplace> xNameReplace;
+    Reference<XNameAccess> xNameAccess;
+    if (mpStaticImpl->mbNameContainer)
+    {
+        xNameContainer.set( mxIface, UNO_QUERY );
+        xNameReplace = xNameContainer;
+        xNameAccess = xNameContainer;
+    }
+    else if (mpStaticImpl->mbNameReplace)
+    {
+        xNameReplace.set( mxIface, UNO_QUERY );
+        xNameAccess = xNameReplace;
+    }
+    else if (mpStaticImpl->mbNameAccess)
+    {
+        xNameAccess.set( mxIface, UNO_QUERY );
+    }
+
+    {
+        std::unique_lock aGuard( m_aMutex );
+        if( !mxObjNameContainer.is() )
+            mxObjNameContainer = xNameContainer;
+        if( !mxObjNameReplace.is() )
+            mxObjNameReplace = xNameReplace;
+        if( !mxObjNameAccess.is() )
+            mxObjNameAccess = xNameAccess;
+    }
+}
+
+Reference<XNameContainer> ImplIntrospectionAccess::getXNameContainer()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjNameContainer.is() )
+    {
+        aGuard.unlock();
+        cacheXNameContainer();
+    }
+    return mxObjNameContainer;
+}
+
+Reference<XNameReplace> ImplIntrospectionAccess::getXNameReplace()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjNameReplace.is() )
+    {
+        aGuard.unlock();
+        cacheXNameContainer();
+    }
+    return mxObjNameReplace;
+}
+
+Reference<XNameAccess> ImplIntrospectionAccess::getXNameAccess()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjNameAccess.is() )
+    {
+        aGuard.unlock();
+        cacheXNameContainer();
+    }
+    return mxObjNameAccess;
+}
+
+void ImplIntrospectionAccess::cacheXIndexContainer()
+{
+    Reference<XIndexContainer> xIndexContainer;
+    Reference<XIndexReplace> xIndexReplace;
+    Reference<XIndexAccess> xIndexAccess;
+    if (mpStaticImpl->mbIndexContainer)
+    {
+        xIndexContainer.set( mxIface, UNO_QUERY );
+        xIndexReplace = xIndexContainer;
+        xIndexAccess = xIndexContainer;
+    }
+    else if (mpStaticImpl->mbIndexReplace)
+    {
+        xIndexReplace.set( mxIface, UNO_QUERY );
+        xIndexAccess = xIndexReplace;
+    }
+    else if (mpStaticImpl->mbIndexAccess)
+    {
+        xIndexAccess.set( mxIface, UNO_QUERY );
+    }
+
+    {
+        std::unique_lock aGuard( m_aMutex );
+        if( !mxObjIndexContainer.is() )
+            mxObjIndexContainer = xIndexContainer;
+        if( !mxObjIndexReplace.is() )
+            mxObjIndexReplace = xIndexReplace;
+        if( !mxObjIndexAccess.is() )
+            mxObjIndexAccess = xIndexAccess;
+    }
+}
+
+Reference<XIndexContainer> ImplIntrospectionAccess::getXIndexContainer()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjIndexContainer.is() )
+    {
+        aGuard.unlock();
+        cacheXIndexContainer();
+    }
+    return mxObjIndexContainer;
+}
+
+Reference<XIndexReplace> ImplIntrospectionAccess::getXIndexReplace()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjIndexReplace.is() )
+    {
+        aGuard.unlock();
+        cacheXIndexContainer();
+    }
+    return mxObjIndexReplace;
+}
+
+Reference<XIndexAccess> ImplIntrospectionAccess::getXIndexAccess()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjIndexAccess.is() )
+    {
+        aGuard.unlock();
+        cacheXIndexContainer();
+    }
+    return mxObjIndexAccess;
+}
+
+Reference<XEnumerationAccess> ImplIntrospectionAccess::getXEnumerationAccess()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjEnumerationAccess.is() )
+    {
+        aGuard.unlock();
+        Reference<XEnumerationAccess> xEnumerationAccess( mxIface, UNO_QUERY );
+        aGuard.lock();
+        if( !mxObjEnumerationAccess.is() )
+            mxObjEnumerationAccess = xEnumerationAccess;
+    }
+    return mxObjEnumerationAccess;
+}
+
+Reference<XIdlArray> ImplIntrospectionAccess::getXIdlArray()
+{
+    std::unique_lock aGuard( m_aMutex );
+
+    if( !mxObjIdlArray.is() )
+    {
+        aGuard.unlock();
+        Reference<XIdlArray> xIdlArray( mxIface, UNO_QUERY );
+        aGuard.lock();
+        if( !mxObjIdlArray.is() )
+            mxObjIdlArray = xIdlArray;
+    }
+    return mxObjIdlArray;
+}
+
+// Methods from XInterface
+Any SAL_CALL ImplIntrospectionAccess::queryInterface( const Type& rType )
+{
+    Any aRet( ::cppu::queryInterface(
+        rType,
+        static_cast< XIntrospectionAccess * >( this ),
+        static_cast< XMaterialHolder * >( this ),
+        static_cast< XExactName * >( this ),
+        static_cast< XPropertySet * >( this ),
+        static_cast< XFastPropertySet * >( this ),
+        static_cast< XPropertySetInfo * >( this ) ) );
+    if( !aRet.hasValue() )
+        aRet = OWeakObject::queryInterface( rType );
+
+    if( !aRet.hasValue() )
+    {
+        // Wrapper for the object interfaces
+        ( mpStaticImpl->mbElementAccess && (aRet = ::cppu::queryInterface
+                    ( rType, static_cast< XElementAccess* >( static_cast< XNameAccess* >( this ) ) ) ).hasValue() )
+        || ( mpStaticImpl->mbNameAccess && (aRet = ::cppu::queryInterface( rType, static_cast< XNameAccess* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbNameReplace && (aRet = ::cppu::queryInterface( rType, static_cast< XNameReplace* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbNameContainer && (aRet = ::cppu::queryInterface( rType, static_cast< XNameContainer* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbIndexAccess && (aRet = ::cppu::queryInterface( rType, static_cast< XIndexAccess* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbIndexReplace && (aRet = ::cppu::queryInterface( rType, static_cast< XIndexReplace* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbIndexContainer && (aRet = ::cppu::queryInterface( rType, static_cast< XIndexContainer* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbEnumerationAccess && (aRet = ::cppu::queryInterface( rType, static_cast< XEnumerationAccess* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbIdlArray && (aRet = ::cppu::queryInterface( rType, static_cast< XIdlArray* >( this ) ) ).hasValue() )
+        || ( mpStaticImpl->mbUnoTunnel && (aRet = ::cppu::queryInterface( rType, static_cast< XUnoTunnel* >( this ) ) ).hasValue() );
+    }
+    return aRet;
+}
+
+
+//*** Implementation of ImplIntrospectionAdapter ***
+
+
+// Methods from XPropertySet
+Reference<XPropertySetInfo> ImplIntrospectionAccess::getPropertySetInfo()
+{
+    return static_cast<XPropertySetInfo *>(this);
+}
+
+void ImplIntrospectionAccess::setPropertyValue(const OUString& aPropertyName, const Any& aValue)
+{
+    mpStaticImpl->setPropertyValue( maInspectedObject, aPropertyName, aValue );
+}
+
+Any ImplIntrospectionAccess::getPropertyValue(const OUString& aPropertyName)
+{
+    return mpStaticImpl->getPropertyValue( maInspectedObject, aPropertyName );
+}
+
+void ImplIntrospectionAccess::addPropertyChangeListener(const OUString& aPropertyName, const Reference<XPropertyChangeListener>& aListener)
+{
+    if( mxIface.is() )
+    {
+        Reference<XPropertySet> xPropSet =
+            Reference<XPropertySet>::query( mxIface );
+        //Reference<XPropertySet> xPropSet( mxIface, USR_QUERY );
+        if( xPropSet.is() )
+            xPropSet->addPropertyChangeListener(aPropertyName, aListener);
+    }
+}
+
+void ImplIntrospectionAccess::removePropertyChangeListener(const OUString& aPropertyName, const Reference<XPropertyChangeListener>& aListener)
+{
+    if( mxIface.is() )
+    {
+        Reference<XPropertySet> xPropSet =
+            Reference<XPropertySet>::query( mxIface );
+        //Reference<XPropertySet> xPropSet( mxIface, USR_QUERY );
+        if( xPropSet.is() )
+            xPropSet->removePropertyChangeListener(aPropertyName, aListener);
+    }
+}
+
+void ImplIntrospectionAccess::addVetoableChangeListener(const OUString& aPropertyName, const Reference<XVetoableChangeListener>& aListener)
+{
+    if( mxIface.is() )
+    {
+        Reference<XPropertySet> xPropSet =
+            Reference<XPropertySet>::query( mxIface );
+        //Reference<XPropertySet> xPropSet( mxIface, USR_QUERY );
+        if( xPropSet.is() )
+            xPropSet->addVetoableChangeListener(aPropertyName, aListener);
+    }
+}
+
+void ImplIntrospectionAccess::removeVetoableChangeListener(const OUString& aPropertyName, const Reference<XVetoableChangeListener>& aListener)
+{
+    if( mxIface.is() )
+    {
+        Reference<XPropertySet> xPropSet =
+            Reference<XPropertySet>::query( mxIface );
+        if( xPropSet.is() )
+            xPropSet->removeVetoableChangeListener(aPropertyName, aListener);
+    }
+}
+
+
+// Methods from XFastPropertySet
+void ImplIntrospectionAccess::setFastPropertyValue(sal_Int32, const Any&)
+{
+}
+
+Any ImplIntrospectionAccess::getFastPropertyValue(sal_Int32)
+{
+    return Any();
+}
+
+// Methods from XPropertySetInfo
+Sequence< Property > ImplIntrospectionAccess::getProperties()
+{
+    return comphelper::containerToSequence(mpStaticImpl->getProperties());
+}
+
+Property ImplIntrospectionAccess::getPropertyByName(const OUString& Name)
+{
+    return getProperty( Name, PropertyConcept::ALL );
+}
+
+sal_Bool ImplIntrospectionAccess::hasPropertyByName(const OUString& Name)
+{
+    return hasProperty( Name, PropertyConcept::ALL );
+}
+
+// Methods from XElementAccess
+Type ImplIntrospectionAccess::getElementType()
+{
+    return getXElementAccess()->getElementType();
+}
+
+sal_Bool ImplIntrospectionAccess::hasElements()
+{
+    return getXElementAccess()->hasElements();
+}
+
+// Methods from XNameAccess
+Any ImplIntrospectionAccess::getByName(const OUString& Name)
+{
+    return getXNameAccess()->getByName( Name );
+}
+
+Sequence< OUString > ImplIntrospectionAccess::getElementNames()
+{
+    return getXNameAccess()->getElementNames();
+}
+
+sal_Bool ImplIntrospectionAccess::hasByName(const OUString& Name)
+{
+    return getXNameAccess()->hasByName( Name );
+}
+
+// Methods from XNameContainer
+void ImplIntrospectionAccess::insertByName(const OUString& Name, const Any& Element)
+{
+    getXNameContainer()->insertByName( Name, Element );
+}
+
+void ImplIntrospectionAccess::replaceByName(const OUString& Name, const Any& Element)
+{
+    getXNameReplace()->replaceByName( Name, Element );
+}
+
+void ImplIntrospectionAccess::removeByName(const OUString& Name)
+{
+    getXNameContainer()->removeByName( Name );
+}
+
+// Methods from XIndexAccess
+// Already in XNameAccess: virtual Reference<XIdlClass> getElementType() const
+sal_Int32 ImplIntrospectionAccess::getCount()
+{
+    return getXIndexAccess()->getCount();
+}
+
+Any ImplIntrospectionAccess::getByIndex(sal_Int32 Index)
+{
+    return getXIndexAccess()->getByIndex( Index );
+}
+
+// Methods from XIndexContainer
+void ImplIntrospectionAccess::insertByIndex(sal_Int32 Index, const Any& Element)
+{
+    getXIndexContainer()->insertByIndex( Index, Element );
+}
+
+void ImplIntrospectionAccess::replaceByIndex(sal_Int32 Index, const Any& Element)
+{
+    getXIndexReplace()->replaceByIndex( Index, Element );
+}
+
+void ImplIntrospectionAccess::removeByIndex(sal_Int32 Index)
+{
+    getXIndexContainer()->removeByIndex( Index );
+}
+
+// Methods from XEnumerationAccess
+// Already in XNameAccess: virtual Reference<XIdlClass> getElementType() const;
+Reference<XEnumeration> ImplIntrospectionAccess::createEnumeration()
+{
+    return getXEnumerationAccess()->createEnumeration();
+}
+
+// Methods from XIdlArray
+void ImplIntrospectionAccess::realloc(Any& array, sal_Int32 length)
+{
+    getXIdlArray()->realloc( array, length );
+}
+
+sal_Int32 ImplIntrospectionAccess::getLen(const Any& array)
+{
+    return getXIdlArray()->getLen( array );
+}
+
+Any ImplIntrospectionAccess::get(const Any& array, sal_Int32 index)
+{
+    return getXIdlArray()->get( array, index );
+}
+
+void ImplIntrospectionAccess::set(Any& array, sal_Int32 index, const Any& value)
+{
+    getXIdlArray()->set( array, index, value );
+}
+
+// Methods from XUnoTunnel
+sal_Int64 ImplIntrospectionAccess::getSomething( const Sequence< sal_Int8 >& aIdentifier )
+{
+    if (Reference<XUnoTunnel> xUnoTunnel{ mxIface, css::uno::UNO_QUERY })
+        return xUnoTunnel->getSomething(aIdentifier);
+    return 0;
+}
+
+
+//*** Implementation of ImplIntrospectionAccess ***
+
+// Methods from XIntrospectionAccess
+sal_Int32 ImplIntrospectionAccess::getSuppliedMethodConcepts()
+{
+    return    MethodConcept::DANGEROUS |
+            PROPERTY |
+            LISTENER |
+            ENUMERATION |
+            NAMECONTAINER |
+            INDEXCONTAINER;
+}
+
+sal_Int32 ImplIntrospectionAccess::getSuppliedPropertyConcepts()
+{
+    return    PropertyConcept::DANGEROUS |
+            PROPERTYSET |
+            ATTRIBUTES |
+            METHODS;
+}
+
+Property ImplIntrospectionAccess::getProperty(const OUString& Name, sal_Int32 PropertyConcepts)
+{
+    Property aRet;
+    sal_Int32 i = mpStaticImpl->getPropertyIndex( Name );
+    bool bFound = false;
+    if( i != -1 )
+    {
+        sal_Int32 nConcept = mpStaticImpl->getPropertyConcepts()[ i ];
+        if( (PropertyConcepts & nConcept) != 0 )
+        {
+            aRet = mpStaticImpl->getProperties()[ i ];
+            bFound = true;
+        }
+    }
+    if( !bFound )
+        throw NoSuchElementException(Name);
+    return aRet;
+}
+
+sal_Bool ImplIntrospectionAccess::hasProperty(const OUString& Name, sal_Int32 PropertyConcepts)
+{
+    sal_Int32 i = mpStaticImpl->getPropertyIndex( Name );
+    bool bRet = false;
+    if( i != -1 )
+    {
+        sal_Int32 nConcept = mpStaticImpl->getPropertyConcepts()[ i ];
+        if( (PropertyConcepts & nConcept) != 0 )
+            bRet = true;
+    }
+    return bRet;
+}
+
+Sequence< Property > ImplIntrospectionAccess::getProperties(sal_Int32 PropertyConcepts)
+{
+    // If all supported concepts are required, simply pass through the sequence
+    sal_Int32 nAllSupportedMask =   PROPERTYSET |
+                                    ATTRIBUTES |
+                                    METHODS;
+    if( ( PropertyConcepts & nAllSupportedMask ) == nAllSupportedMask )
+    {
+        return comphelper::containerToSequence(mpStaticImpl->getProperties());
+    }
+
+    // Same sequence as last time?
+    if( mnLastPropertyConcept == PropertyConcepts )
+    {
+        return maLastPropertySeq;
+    }
+
+    // Number of properties to be delivered
+    sal_Int32 nCount = 0;
+
+    // There are currently no DANGEROUS properties
+    // if( PropertyConcepts & DANGEROUS )
+    //    nCount += mpStaticImpl->mnDangerousPropCount;
+    if( PropertyConcepts & PROPERTYSET )
+        nCount += mpStaticImpl->mnPropertySetPropCount;
+    if( PropertyConcepts & ATTRIBUTES )
+        nCount += mpStaticImpl->mnAttributePropCount;
+    if( PropertyConcepts & METHODS )
+        nCount += mpStaticImpl->mnMethodPropCount;
+
+    // Realloc sequence according to the required number
+    maLastPropertySeq.realloc( nCount );
+    Property* pDestProps = maLastPropertySeq.getArray();
+
+    // Go through all the properties and apply according to the concept
+    const std::vector<Property>&  rPropSeq = mpStaticImpl->getProperties();
+    const std::vector<sal_Int32>& rConcepts = mpStaticImpl->getPropertyConcepts();
+    sal_Int32 nLen = static_cast<sal_Int32>(rPropSeq.size());
+
+    sal_Int32 iDest = 0;
+    for( sal_Int32 i = 0 ; i < nLen ; i++ )
+    {
+        sal_Int32 nConcept = rConcepts[ i ];
+        if( nConcept & PropertyConcepts )
+            pDestProps[ iDest++ ] = rPropSeq[ i ];
+    }
+
+    // Remember PropertyConcept representing maLastPropertySeq
+    mnLastPropertyConcept = PropertyConcepts;
+
+    // Supply assembled Sequence
+    return maLastPropertySeq;
+}
+
+Reference<XIdlMethod> ImplIntrospectionAccess::getMethod(const OUString& Name, sal_Int32 MethodConcepts)
+{
+    Reference<XIdlMethod> xRet;
+    sal_Int32 i = mpStaticImpl->getMethodIndex( Name );
+    if( i != -1 )
+    {
+
+        sal_Int32 nConcept = mpStaticImpl->getMethodConcepts()[ i ];
+        if( (MethodConcepts & nConcept) != 0 )
+        {
+            xRet = mpStaticImpl->getMethods()[i];
+        }
+    }
+    if( !xRet.is() )
+        throw NoSuchMethodException(Name);
+    return xRet;
+}
+
+sal_Bool ImplIntrospectionAccess::hasMethod(const OUString& Name, sal_Int32 MethodConcepts)
+{
+    sal_Int32 i = mpStaticImpl->getMethodIndex( Name );
+    bool bRet = false;
+    if( i != -1 )
+    {
+        sal_Int32 nConcept = mpStaticImpl->getMethodConcepts()[ i ];
+        if( (MethodConcepts & nConcept) != 0 )
+            bRet = true;
+    }
+    return bRet;
+}
+
+Sequence< Reference<XIdlMethod> > ImplIntrospectionAccess::getMethods(sal_Int32 MethodConcepts)
+{
+    // If all supported concepts are required, simply pass through the sequence
+    sal_Int32 nAllSupportedMask =   MethodConcept::DANGEROUS |
+                                    PROPERTY |
+                                    LISTENER |
+                                    ENUMERATION |
+                                    NAMECONTAINER |
+                                    INDEXCONTAINER |
+                                    MethodConcept_NORMAL_IMPL;
+    if( ( MethodConcepts & nAllSupportedMask ) == nAllSupportedMask )
+    {
+        return comphelper::containerToSequence(mpStaticImpl->getMethods());
+    }
+
+    // Same sequence as last time?
+    if( mnLastMethodConcept == MethodConcepts )
+    {
+        return maLastMethodSeq;
+    }
+
+    // Get method sequences
+    const std::vector< Reference<XIdlMethod> >& aMethodSeq = mpStaticImpl->getMethods();
+    sal_Int32 nLen = static_cast<sal_Int32>(aMethodSeq.size());
+
+    // Realloc sequence according to the required number
+    // Unlike Properties, the number can not be determined by counters in
+    // inspect() beforehand, since methods can belong to several concepts
+    maLastMethodSeq.realloc( nLen );
+    Reference<XIdlMethod>* pDestMethods = maLastMethodSeq.getArray();
+
+    // Go through all the methods and apply according to the concept
+    sal_Int32 iDest = 0;
+    for( sal_Int32 i = 0 ; i < nLen ; i++ )
+    {
+        sal_Int32 nConcept = mpStaticImpl->getMethodConcepts()[ i ];
+        if( nConcept & MethodConcepts )
+            pDestMethods[ iDest++ ] = aMethodSeq[ i ];
+    }
+
+    // Bring to the correct length
+    maLastMethodSeq.realloc( iDest );
+
+    // Remember MethodConcept representing maLastMethodSeq
+    mnLastMethodConcept = MethodConcepts;
+
+    // Supply assembled Sequence
+    return maLastMethodSeq;
+}
+
+Sequence< Type > ImplIntrospectionAccess::getSupportedListeners()
+{
+    return comphelper::containerToSequence(mpStaticImpl->getSupportedListeners());
+}
+
+Reference<XInterface> SAL_CALL ImplIntrospectionAccess::queryAdapter( const Type& rType )
+{
+    Reference<XInterface> xRet;
+    if(    rType == cppu::UnoType<XInterface>::get()
+        || rType == cppu::UnoType<XPropertySet>::get()
+        || rType == cppu::UnoType<XFastPropertySet>::get()
+        || rType == cppu::UnoType<XPropertySetInfo>::get()
+        || rType == cppu::UnoType<XElementAccess>::get()
+        || rType == cppu::UnoType<XNameAccess>::get()
+        || rType == cppu::UnoType<XNameReplace>::get()
+        || rType == cppu::UnoType<XNameContainer>::get()
+        || rType == cppu::UnoType<XIndexAccess>::get()
+        || rType == cppu::UnoType<XIndexReplace>::get()
+        || rType == cppu::UnoType<XIndexContainer>::get()
+        || rType == cppu::UnoType<XEnumerationAccess>::get()
+        || rType == cppu::UnoType<XIdlArray>::get()
+        || rType == cppu::UnoType<XUnoTunnel>::get() )
+    {
+        queryInterface( rType ) >>= xRet;
+    }
+    return xRet;
+}
+
+// Methods from XMaterialHolder
+Any ImplIntrospectionAccess::getMaterial()
+{
+    return maInspectedObject;
+}
+
+// Methods from XExactName
+OUString ImplIntrospectionAccess::getExactName( const OUString& rApproximateName )
+{
+    OUString aRetStr;
+    LowerToExactNameMap::iterator aIt =
+        mpStaticImpl->maLowerToExactNameMap.find( rApproximateName.toAsciiLowerCase() );
+    if (aIt != mpStaticImpl->maLowerToExactNameMap.end())
+        aRetStr = (*aIt).second;
+    return aRetStr;
+}
+
+struct TypeKey {
+    TypeKey(
+        css::uno::Reference<css::beans::XPropertySetInfo> theProperties,
+        std::vector<css::uno::Type> const & theTypes):
+        properties(std::move(theProperties))
+    {
+        //TODO: Could even sort the types lexicographically first, to increase
+        // the chance of matches between different implementations' getTypes(),
+        // but the old scheme of using getImplementationId() would have missed
+        // those matches, too:
+        OUStringBuffer b(static_cast<int>(theTypes.size() * 64));
+        for (const css::uno::Type& rType : theTypes) {
+            b.append(rType.getTypeName()
+                + "*"); // arbitrary delimiter not used by type grammar
+        }
+        types = b.makeStringAndClear();
+    }
+
+    css::uno::Reference<css::beans::XPropertySetInfo> properties;
+    OUString types;
+};
+
+struct TypeKeyLess {
+    bool operator ()(TypeKey const & key1, TypeKey const & key2) const {
+        if (key1.properties.get() < key2.properties.get()) {
+            return true;
+        }
+        if (key1.properties.get() > key2.properties.get()) {
+            return false;
+        }
+        return key1.types < key2.types;
+    }
+};
+
+template<typename Key, typename Less> class Cache {
+public:
+    rtl::Reference<IntrospectionAccessStatic_Impl> find(Key const & key) const {
+        typename Map::const_iterator i(map_.find(key));
+        if (i == map_.end()) {
+            return rtl::Reference<IntrospectionAccessStatic_Impl>();
+        } else {
+            if (i->second.hits < std::numeric_limits<unsigned>::max()) {
+                ++i->second.hits;
+            }
+            assert(i->second.access.is());
+            return i->second.access;
+        }
+    }
+
+    void insert(
+        Key const & key,
+        rtl::Reference<IntrospectionAccessStatic_Impl> const & access)
+    {
+        assert(access.is());
+        typename Map::size_type const MAX = 100;
+        assert(map_.size() <= MAX);
+        if (map_.size() == MAX) {
+            typename Map::iterator del = std::min_element(map_.begin(), map_.end(),
+                [](const typename Map::value_type& a, const typename Map::value_type& b) {
+                    return a.second.hits < b.second.hits;
+                });
+            map_.erase(del);
+        }
+        bool ins = map_.emplace(key, Data(access)).second;
+        assert(ins); (void)ins;
+    }
+
+    void clear() { map_.clear(); }
+
+private:
+    struct Data {
+        explicit Data(
+            rtl::Reference<IntrospectionAccessStatic_Impl> theAccess):
+            access(std::move(theAccess)), hits(1)
+        {}
+
+        rtl::Reference<IntrospectionAccessStatic_Impl> access;
+        mutable unsigned hits;
+    };
+
+    typedef std::map<Key, Data, Less> Map;
+
+    Map map_;
+};
+
+typedef
+    cppu::WeakComponentImplHelper<
+        css::lang::XServiceInfo, css::beans::XIntrospection>
+    Implementation_Base;
+
+class Implementation: private cppu::BaseMutex, public Implementation_Base {
+public:
+    explicit Implementation(
+        css::uno::Reference<css::uno::XComponentContext> const & context):
+        Implementation_Base(m_aMutex),
+        reflection_(css::reflection::theCoreReflection::get(context))
+    {}
+
+private:
+    virtual void SAL_CALL disposing() override {
+        osl::MutexGuard g(m_aMutex);
+        reflection_.clear();
+        typeCache_.clear();
+    }
+
+    virtual OUString SAL_CALL getImplementationName() override
+    { return "com.sun.star.comp.stoc.Introspection"; }
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
+    { return cppu::supportsService(this, ServiceName); }
+
+    virtual css::uno::Sequence<OUString> SAL_CALL
+    getSupportedServiceNames() override
+    {
+        Sequence<OUString> s { "com.sun.star.beans.Introspection" };
+        return s;
+    }
+
+    virtual css::uno::Reference<css::beans::XIntrospectionAccess> SAL_CALL
+    inspect(css::uno::Any const & aObject) override;
+
+    css::uno::Reference<css::reflection::XIdlReflection> reflection_;
+    Cache<TypeKey, TypeKeyLess> typeCache_;
+};
+
+css::uno::Reference<css::beans::XIntrospectionAccess> Implementation::inspect(
+    css::uno::Any const & aObject)
+{
+    css::uno::Reference<css::reflection::XIdlReflection> reflection;
+    {
+        osl::MutexGuard g(m_aMutex);
+        if (rBHelper.bDisposed || rBHelper.bInDispose) {
+            throw css::lang::DisposedException(
+                getImplementationName(), getXWeak());
+        }
+        reflection = reflection_;
+    }
+    css::uno::Any aToInspectObj;
+    css::uno::Type t;
+    if (aObject >>= t) {
+        css::uno::Reference<css::reflection::XIdlClass> c(
+            reflection->forName(t.getTypeName()));
+        if (!c.is()) {
+            SAL_WARN("stoc", "cannot reflect type " << t.getTypeName());
+            return css::uno::Reference<css::beans::XIntrospectionAccess>();
+        }
+        aToInspectObj <<= c;
+    } else {
+        aToInspectObj = aObject;
+    }
+
+    // Examine object
+    TypeClass eType = aToInspectObj.getValueType().getTypeClass();
+    if( eType != TypeClass_INTERFACE && eType != TypeClass_STRUCT  && eType != TypeClass_EXCEPTION )
+        return css::uno::Reference<css::beans::XIntrospectionAccess>();
+
+    if( auto x = o3tl::tryAccess<Reference<XInterface>>(aToInspectObj) )
+    {
+        if( !x->is() )
+            return css::uno::Reference<css::beans::XIntrospectionAccess>();
+    }
+
+    // Pointer to possibly needed new IntrospectionAccessStatic_Impl instance
+    rtl::Reference< IntrospectionAccessStatic_Impl > pAccess;
+
+    // Check: Is a matching access object already cached?
+    std::vector< Reference<XIdlClass> >    SupportedClassSeq;
+    std::vector< Type >                    SupportedTypesSeq;
+    Reference<XTypeProvider>               xTypeProvider;
+    Reference<XPropertySetInfo>            xPropSetInfo;
+    Reference<XPropertySet>                xPropSet;
+
+    // Look for interfaces XTypeProvider and PropertySet
+    if( eType == TypeClass_INTERFACE )
+    {
+        xTypeProvider.set( aToInspectObj, UNO_QUERY );
+        if( xTypeProvider.is() )
+        {
+            SupportedTypesSeq = comphelper::sequenceToContainer<std::vector<Type>>(xTypeProvider->getTypes());
+        } else {
+            SAL_WARN(
+                "stoc",
+                "object of type \"" << aToInspectObj.getValueTypeName()
+                    << "\" lacks XTypeProvider");
+            SupportedTypesSeq = { aToInspectObj.getValueType() };
+        }
+        // Now try to get the PropertySetInfo
+        xPropSet.set( aToInspectObj, UNO_QUERY );
+        if( xPropSet.is() )
+            xPropSetInfo = xPropSet->getPropertySetInfo();
+
+    } else {
+        SupportedTypesSeq = { aToInspectObj.getValueType() };
+    }
+
+    {
+        osl::MutexGuard g(m_aMutex);
+        if (rBHelper.bDisposed || rBHelper.bInDispose) {
+            throw css::lang::DisposedException(
+                getImplementationName(), getXWeak());
+        }
+        TypeKey key(xPropSetInfo, SupportedTypesSeq);
+        pAccess = typeCache_.find(key);
+        if (pAccess.is()) {
+            return new ImplIntrospectionAccess(aToInspectObj, pAccess);
+        }
+        pAccess = new IntrospectionAccessStatic_Impl(reflection);
+        typeCache_.insert(key, pAccess);
+    }
+
+    // No access cached -> create new
+    std::vector<Property>& rAllPropArray = pAccess->maAllPropertySeq;
+    std::vector<Reference<XInterface>>& rInterfaces1 = pAccess->aInterfaceSeq1;
+    std::vector<Reference<XInterface>>& rInterfaces2 = pAccess->aInterfaceSeq2;
+    std::vector<sal_Int16>& rMapTypeArray = pAccess->maMapTypeSeq;
+    std::vector<sal_Int32>& rPropertyConceptArray = pAccess->maPropertyConceptSeq;
+
+    // References to important data from pAccess
+    sal_Int32& rPropCount = pAccess->mnPropCount;
+    IntrospectionNameMap& rPropNameMap = pAccess->maPropertyNameMap;
+    IntrospectionNameMap& rMethodNameMap = pAccess->maMethodNameMap;
+    LowerToExactNameMap& rLowerToExactNameMap = pAccess->maLowerToExactNameMap;
+
+
+    //*** Perform analysis ***
+
+    if( eType == TypeClass_INTERFACE )
+    {
+        size_t nTypeCount = SupportedTypesSeq.size();
+        if( nTypeCount )
+        {
+            SupportedClassSeq.resize( nTypeCount );
+
+            for( size_t i = 0 ; i < nTypeCount ; i++ )
+                SupportedClassSeq[i] = reflection->forName( SupportedTypesSeq[i].getTypeName() );
+        }
+
+        // First look for particular interfaces that are of particular
+        // importance to the introspection
+
+        // Is XPropertySet present?
+        if( xPropSet.is() && xPropSetInfo.is() )
+        {
+            // Is there also a FastPropertySet?
+            Reference<XFastPropertySet> xDummy( aToInspectObj, UNO_QUERY );
+            bool bFast = pAccess->mbFastPropSet = xDummy.is();
+
+            Sequence<Property> aPropSeq = xPropSetInfo->getProperties();
+            const Property* pProps = aPropSeq.getConstArray();
+            sal_Int32 nLen = aPropSeq.getLength();
+
+            // For a FastPropertySet we must remember the original handles
+            if( bFast )
+                pAccess->mpOrgPropertyHandleArray.reset( new sal_Int32[ nLen ] );
+
+            for( sal_Int32 i = 0 ; i < nLen ; i++ )
+            {
+                // Put property in its own list
+                pAccess->checkPropertyArraysSize( rPropCount );
+                Property& rProp = rAllPropArray[ rPropCount ];
+                rProp = pProps[ i ];
+
+                if( bFast )
+                    pAccess->mpOrgPropertyHandleArray[ i ] = rProp.Handle;
+
+                // Enter PropCount as a handle for its own FastPropertySet
+                rProp.Handle = rPropCount;
+
+                // Remember type of property
+                rMapTypeArray[ rPropCount ] = MAP_PROPERTY_SET;
+                rPropertyConceptArray[ rPropCount ] = PROPERTYSET;
+                pAccess->mnPropertySetPropCount++;
+
+                // Enter name in hash table if not already known
+                OUString aPropName = rProp.Name;
+
+                // Do we already have the name?
+                IntrospectionNameMap::iterator aIt = rPropNameMap.find( aPropName );
+                if( aIt == rPropNameMap.end() )
+                {
+                    // New entry in the hash table
+                    rPropNameMap[ aPropName ] = rPropCount;
+
+                    // Maintain table for XExactName
+                    rLowerToExactNameMap[ aPropName.toAsciiLowerCase() ] = aPropName;
+                }
+                else
+                {
+                    SAL_WARN( "stoc", "Introspection: Property \"" <<
+                        aPropName << "\" found more than once in PropertySet" );
+                }
+
+                // Adjust count
+                rPropCount++;
+            }
+        }
+
+        // Indices in the export table
+        sal_Int32 iAllExportedMethod = 0;
+        sal_Int32 iAllSupportedListener = 0;
+
+        std::set<OUString> seen;
+
+        // Flag, whether XInterface methods should be recorded
+        // (this must be done only once, allowed initially)
+        bool bXInterfaceIsInvalid = false;
+
+        // Flag whether the XInterface methods have already been recorded. If
+        // sal_True, bXInterfaceIsInvalid is activated at the end of the interface
+        // loop, and XInterface methods are cut off thereafter.
+        bool bFoundXInterface = false;
+
+        size_t nClassCount = SupportedClassSeq.size();
+        for( size_t nIdx = 0 ; nIdx < nClassCount; nIdx++ )
+        {
+            Reference<XIdlClass> xImplClass2 = SupportedClassSeq[nIdx];
+            while( xImplClass2.is() )
+            {
+                // Fetch interfaces from the implementation
+                Sequence< Reference<XIdlClass> > aClassSeq = xImplClass2->getInterfaces();
+                sal_Int32 nIfaceCount = aClassSeq.getLength();
+
+                aClassSeq.realloc( nIfaceCount + 1 );
+                aClassSeq.getArray()[ nIfaceCount ] = xImplClass2;
+
+                for( const Reference<XIdlClass>& rxIfaceClass : std::as_const(aClassSeq) )
+                {
+                    if (!seen.insert(rxIfaceClass->getName()).second) {
+                        continue;
+                    }
+
+                    // 2. Register fields as properties
+
+                    // Get fields
+                    const Sequence< Reference<XIdlField> > fields = rxIfaceClass->getFields();
+
+                    for( const Reference<XIdlField>& xField : fields )
+                    {
+                        Reference<XIdlClass> xPropType = xField->getType();
+
+                        // Is the property sequence big enough?
+                        pAccess->checkPropertyArraysSize( rPropCount );
+
+                        // Enter in own property array
+                        Property& rProp = rAllPropArray[ rPropCount ];
+                        rProp.Name = xField->getName();
+                        rProp.Handle = rPropCount;
+                        Type aFieldType( xPropType->getTypeClass(), xPropType->getName() );
+                        rProp.Type = aFieldType;
+                        FieldAccessMode eAccessMode = xField->getAccessMode();
+                        rProp.Attributes = (eAccessMode == FieldAccessMode_READONLY ||
+                                            eAccessMode == FieldAccessMode_CONST)
+                            ? READONLY : 0;
+
+                        // Enter name in hash table
+                        OUString aPropName = rProp.Name;
+
+                        // Do we have the name already?
+                        IntrospectionNameMap::iterator aIt = rPropNameMap.find( aPropName );
+                        if (aIt != rPropNameMap.end())
+                            continue;
+
+                        // New entry in the hash table
+                        rPropNameMap[ aPropName ] = rPropCount;
+
+                        // Maintain table for XExactName
+                        rLowerToExactNameMap[ aPropName.toAsciiLowerCase() ] = aPropName;
+
+                        // Remember field
+                        IntrospectionAccessStatic_Impl::checkInterfaceArraySize( pAccess->aInterfaceSeq1,
+                                                          rInterfaces1, rPropCount );
+                        rInterfaces1[ rPropCount ] = xField;
+
+                        // Remember type of property
+                        rMapTypeArray[ rPropCount ] = MAP_FIELD;
+                        rPropertyConceptArray[ rPropCount ] = ATTRIBUTES;
+                        pAccess->mnAttributePropCount++;
+
+                        // Adjust count
+                        rPropCount++;
+                    }
+
+
+                    // 3. Methods
+
+                    // Get and remember all methods
+                    Sequence< Reference<XIdlMethod> > methods = rxIfaceClass->getMethods();
+                    const Reference<XIdlMethod>* pSourceMethods = methods.getConstArray();
+                    sal_Int32 nSourceMethodCount = methods.getLength();
+
+                    // 3. a) Search get/set and listener methods
+
+                    // Create field for information about the methods, so that methods which are not
+                    // related to properties or listeners can easily be found later.
+                    // New: initialise MethodConceptArray
+                    enum MethodType
+                    {
+                        STANDARD_METHOD,            // normal method, not related to properties or listeners
+                        GETSET_METHOD,                // belongs to a get/set property
+                        ADD_LISTENER_METHOD,        // add method of a listener interface
+                        REMOVE_LISTENER_METHOD,        // remove method of a listener interface
+                        INVALID_METHOD                // method whose class is not considered, e.g. XPropertySet
+                    };
+                    std::unique_ptr<MethodType[]> pMethodTypes( new MethodType[ nSourceMethodCount ] );
+                    std::unique_ptr<sal_Int32[]> pLocalMethodConcepts( new sal_Int32[ nSourceMethodCount ] );
+                    for( sal_Int32 i = 0 ; i < nSourceMethodCount ; i++ )
+                    {
+                        pMethodTypes[ i ] = STANDARD_METHOD;
+                        pLocalMethodConcepts[ i ] = 0;
+                    }
+
+                    for( sal_Int32 i = 0 ; i < nSourceMethodCount ; i++ )
+                    {
+                        // Address method
+                        const Reference<XIdlMethod>& rxMethod_i = pSourceMethods[i];
+                        sal_Int32& rMethodConcept_i = pLocalMethodConcepts[ i ];
+
+                        // Fetch name
+                        OUString aMethName = rxMethod_i->getName();
+
+                        // Catalogue methods
+                        // Filter all (?) methods of XInterface so e.g. acquire and release
+                        // can not be called from scripting
+                        OUString className(
+                            rxMethod_i->getDeclaringClass()->getName());
+                        if (className == "com.sun.star.uno.XInterface") {
+                            bFoundXInterface = true;
+
+                            if( bXInterfaceIsInvalid )
+                            {
+                                pMethodTypes[ i ] = INVALID_METHOD;
+                                continue;
+                            }
+                            else
+                            {
+                                if( aMethName != "queryInterface" )
+                                {
+                                    rMethodConcept_i |= MethodConcept::DANGEROUS;
+                                    continue;
+                                }
+                            }
+                        } else if (className == "com.sun.star.uno.XAggregation")
+                        {
+                            if( aMethName == "setDelegator" )
+                            {
+                                rMethodConcept_i |= MethodConcept::DANGEROUS;
+                                continue;
+                            }
+                        } else if (className
+                                   == "com.sun.star.container.XElementAccess")
+                        {
+                            rMethodConcept_i |= ( NAMECONTAINER  |
+                                                  INDEXCONTAINER |
+                                                  ENUMERATION );
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XNameContainer")
+                        {
+                            rMethodConcept_i |= NAMECONTAINER;
+                            pAccess->mbNameContainer = true;
+                            pAccess->mbNameReplace = true;
+                            pAccess->mbNameAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XNameReplace")
+                        {
+                            rMethodConcept_i |= NAMECONTAINER;
+                            pAccess->mbNameReplace = true;
+                            pAccess->mbNameAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XNameAccess")
+                        {
+                            rMethodConcept_i |= NAMECONTAINER;
+                            pAccess->mbNameAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XIndexContainer")
+                        {
+                            rMethodConcept_i |= INDEXCONTAINER;
+                            pAccess->mbIndexContainer = true;
+                            pAccess->mbIndexReplace = true;
+                            pAccess->mbIndexAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XIndexReplace")
+                        {
+                            rMethodConcept_i |= INDEXCONTAINER;
+                            pAccess->mbIndexReplace = true;
+                            pAccess->mbIndexAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                    == "com.sun.star.container.XIndexAccess")
+                        {
+                            rMethodConcept_i |= INDEXCONTAINER;
+                            pAccess->mbIndexAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                   == "com.sun.star.container.XEnumerationAccess")
+                        {
+                            rMethodConcept_i |= ENUMERATION;
+                            pAccess->mbEnumerationAccess = true;
+                            pAccess->mbElementAccess = true;
+                        } else if (className
+                                   == "com.sun.star.reflection.XIdlArray")
+                        {
+                            pAccess->mbIdlArray = true;
+                        } else if (className
+                                   == "com.sun.star.lang.XUnoTunnel")
+                        {
+                            pAccess->mbUnoTunnel = true;
+                        }
+
+                        // If the name is too short, it isn't anything
+                        if( aMethName.getLength() <= 3 )
+                            continue;
+
+                        // Is it a get method?
+                        OUString aPropName;
+                        if( aMethName.startsWith("get", &aPropName) )
+                        {
+                            // Get methods must not have any parameters
+                            Sequence< Reference<XIdlClass> > getParams = rxMethod_i->getParameterTypes();
+                            if( getParams.hasElements() )
+                            {
+                                continue;
+                            }
+
+                            // Do we have the name already?
+                            IntrospectionNameMap::iterator aIt = rPropNameMap.find( aPropName );
+                            if (aIt != rPropNameMap.end())
+                            {
+                                /* TODO
+                                   SAL_INFO("stoc",(
+                                   String( "Introspection: Property \"" ) +
+                                   OOUStringToString( aPropName, CHARSET_SYSTEM ) +
+                                   String( "\" found more than once" ) );
+                                */
+                                continue;
+                            }
+
+                            // It is already at least a read-only property
+                            rMethodConcept_i |= PROPERTY;
+
+                            pMethodTypes[i] = GETSET_METHOD;
+                            Reference<XIdlClass> xGetRetType = rxMethod_i->getReturnType();
+
+                            // Is the property sequence big enough?
+                            pAccess->checkPropertyArraysSize( rPropCount );
+
+                            // Write it in its property array
+                            Property& rProp = rAllPropArray[ rPropCount ];
+                            rProp.Name = aPropName;
+                            rProp.Handle = rPropCount;
+                            rProp.Type = Type( xGetRetType->getTypeClass(), xGetRetType->getName() );
+                            rProp.Attributes = READONLY;
+
+                            // New entry in the hash table
+                            rPropNameMap[ aPropName ] = rPropCount;
+
+                            // Maintain table for XExactName
+                            rLowerToExactNameMap[ aPropName.toAsciiLowerCase() ] = aPropName;
+
+                            // Remember get method
+                            IntrospectionAccessStatic_Impl::checkInterfaceArraySize( pAccess->aInterfaceSeq1,
+                                                              rInterfaces1, rPropCount );
+                            rInterfaces1[ rPropCount ] = rxMethod_i;
+
+                            // Remember type of property
+                            rMapTypeArray[ rPropCount ] = MAP_GETSET;
+                            rPropertyConceptArray[ rPropCount ] = METHODS;
+                            pAccess->mnMethodPropCount++;
+
+                            // Search for matching set method
+                            sal_Int32 k;
+                            for( k = 0 ; k < nSourceMethodCount ; k++ )
+                            {
+                                // Address method
+                                const Reference<XIdlMethod>& rxMethod_k = pSourceMethods[k];
+
+                                // Accept only methods that are not already assigned
+                                if( k == i || pMethodTypes[k] != STANDARD_METHOD )
+                                    continue;
+
+                                // Get name and evaluate
+                                OUString aMethName2 = rxMethod_k->getName();
+                                OUString aPropName2;
+                                if (!(aMethName2.startsWith("set", &aPropName2)
+                                      && aPropName2 == aPropName))
+                                    continue;
+
+                                // A set method must return void
+                                Reference<XIdlClass> xSetRetType = rxMethod_k->getReturnType();
+                                if( xSetRetType->getTypeClass() != TypeClass_VOID )
+                                {
+                                    continue;
+                                }
+
+                                // A set method may only have one parameter
+                                Sequence< Reference<XIdlClass> > setParams = rxMethod_k->getParameterTypes();
+                                sal_Int32 nParamCount = setParams.getLength();
+                                if( nParamCount != 1 )
+                                {
+                                    continue;
+                                }
+
+                                // Next, the return type must correspond to the parameter type
+                                const Reference<XIdlClass>* pParamArray2 = setParams.getConstArray();
+                                Reference<XIdlClass> xParamType = pParamArray2[ 0 ];
+                                if( xParamType->equals( xGetRetType ) )
+                                {
+                                    pLocalMethodConcepts[ k ] = PROPERTY;
+
+                                    pMethodTypes[k] = GETSET_METHOD;
+
+                                    // Delete read-only flag again
+                                    rProp.Attributes &= ~READONLY;
+
+                                    // Remember set method
+                                    IntrospectionAccessStatic_Impl::checkInterfaceArraySize( pAccess->aInterfaceSeq2,
+                                                                      rInterfaces2, rPropCount );
+                                    rInterfaces2[ rPropCount ] = rxMethod_k;
+                                }
+                            }
+
+                            // Adjust count
+                            rPropCount++;
+                        }
+
+                        // Is it an add listener method?
+                        else if( aMethName.startsWith("add", &aPropName) )
+                        {
+                            // Does it end with "Listener"?
+                            OUString aListenerName;
+                            if( !aPropName.endsWith("Listener", &aListenerName) )
+                                continue;
+
+                            // TODO: More accurate tests could still be carried out here
+                            // - Return type
+                            // - Number and type of parameters
+
+
+                            // Search for matching remove method, otherwise not applicable
+                            sal_Int32 k;
+                            for( k = 0 ; k < nSourceMethodCount ; k++ )
+                            {
+                                // Address method
+                                const Reference<XIdlMethod>& rxMethod_k = pSourceMethods[k];
+
+                                // Accept only methods that are not already assigned
+                                if( k == i || pMethodTypes[k] != STANDARD_METHOD )
+                                    continue;
+
+                                // Get name and evaluate
+                                OUString aMethName2 = rxMethod_k->getName();
+                                OUString aListenerName2;
+                                if (!(aMethName2.startsWith(
+                                          "remove", &aPropName)
+                                      && aPropName.endsWith(
+                                          "Listener", &aListenerName2)
+                                      && aListenerName2 == aListenerName))
+                                    continue;
+
+                                // TODO: More accurate tests could still be carried out here
+                                // - Return type
+                                // - Number and type of parameters
+
+
+                                // Methods are recognised as a listener interface
+                                rMethodConcept_i |= LISTENER;
+                                pLocalMethodConcepts[ k ] |= LISTENER;
+
+                                pMethodTypes[i] = ADD_LISTENER_METHOD;
+                                pMethodTypes[k] = REMOVE_LISTENER_METHOD;
+                            }
+                        }
+                    }
+
+
+                    // A set method could still exist without a corresponding get method,
+                    // this must be a write-only property
+                    for( sal_Int32 i = 0 ; i < nSourceMethodCount ; i++ )
+                    {
+                        // Address method
+                        const Reference<XIdlMethod>& rxMethod_i = pSourceMethods[i];
+
+                        // Accept only methods that are not already assigned
+                        if( pMethodTypes[i] != STANDARD_METHOD )
+                            continue;
+
+                        // Get name
+                        OUString aMethName = rxMethod_i->getName();
+
+                        // If the name is too short, it isn't anything
+                        if( aMethName.getLength() <= 3 )
+                            continue;
+
+                        // Is it a set method without associated get method?
+                        OUString aPropName;
+                        if( aMethName.startsWith("set", &aPropName) )
+                        {
+                            // A set method must return void
+                            Reference<XIdlClass> xSetRetType = rxMethod_i->getReturnType();
+                            if( xSetRetType->getTypeClass() != TypeClass_VOID )
+                            {
+                                continue;
+                            }
+
+                            // A set method may only have one parameter
+                            Sequence< Reference<XIdlClass> > setParams = rxMethod_i->getParameterTypes();
+                            sal_Int32 nParamCount = setParams.getLength();
+                            if( nParamCount != 1 )
+                            {
+                                continue;
+                            }
+
+                            // Do we have the name already?
+                            IntrospectionNameMap::iterator aIt = rPropNameMap.find( aPropName );
+                            if (aIt != rPropNameMap.end())
+                            {
+                                /* TODO:
+                                   SAL_INFO("stoc",(
+                                   String( "Introspection: Property \"" ) +
+                                   OOUStringToString( aPropName, CHARSET_SYSTEM ) +
+                                   String( "\" found more than once" ) );
+                                */
+                                continue;
+                            }
+
+                            // Now we know it's a write only property
+                            pLocalMethodConcepts[ i ] = PROPERTY;
+
+                            pMethodTypes[i] = GETSET_METHOD;
+                            Reference<XIdlClass> xGetRetType = setParams.getConstArray()[0];
+
+                            // Is the property sequence big enough?
+                            pAccess->checkPropertyArraysSize( rPropCount );
+
+                            // Write it in its property array
+                            Property& rProp = rAllPropArray[ rPropCount ];
+                            rProp.Name = aPropName;
+                            rProp.Handle = rPropCount;
+                            rProp.Type = Type( xGetRetType->getTypeClass(), xGetRetType->getName() );
+                            rProp.Attributes = 0;    // PROPERTY_WRITEONLY ???
+
+                            // New entry in the hash table
+                            rPropNameMap[ aPropName ] = rPropCount;
+
+                            // Maintain table for XExactName
+                            rLowerToExactNameMap[ aPropName.toAsciiLowerCase() ] = aPropName;
+
+                            // Remember set method
+                            IntrospectionAccessStatic_Impl::checkInterfaceArraySize( pAccess->aInterfaceSeq2,
+                                                              rInterfaces2, rPropCount );
+                            rInterfaces2[ rPropCount ] = rxMethod_i;
+
+                            // Remember type of property
+                            rMapTypeArray[ rPropCount ] = MAP_SETONLY;
+                            rPropertyConceptArray[ rPropCount ] = METHODS;
+                            pAccess->mnMethodPropCount++;
+
+                            // Adjust count
+                            rPropCount++;
+                        }
+                    }
+
+
+                    // 4. Place methods in overall sequence
+
+                    // How many methods in the method sequence
+                    sal_Int32 nExportedMethodCount = 0;
+                    sal_Int32 nSupportedListenerCount = 0;
+                    for( sal_Int32 i = 0 ; i < nSourceMethodCount ; i++ )
+                    {
+                        if( pMethodTypes[ i ] != INVALID_METHOD )
+                        {
+                            nExportedMethodCount++;
+                        }
+                        if( pMethodTypes[ i ] == ADD_LISTENER_METHOD )
+                        {
+                            nSupportedListenerCount++;
+                        }
+                    }
+
+                    // Enlarge sequences in the access object accordingly
+                    pAccess->maAllMethodSeq.resize( nExportedMethodCount + iAllExportedMethod );
+                    pAccess->maMethodConceptSeq.resize( nExportedMethodCount + iAllExportedMethod );
+                    pAccess->maSupportedListenerSeq.resize( nSupportedListenerCount + iAllSupportedListener );
+
+                    // Write in methods
+                    for( sal_Int32 i = 0 ; i < nSourceMethodCount ; i++ )
+                    {
+                        if( pMethodTypes[ i ] != INVALID_METHOD )
+                        {
+                            // Address method
+                            const Reference<XIdlMethod>& rxMethod = pSourceMethods[i];
+
+                            // Enter name in hash table if not already known
+                            OUString aMethName2 = rxMethod->getName();
+                            IntrospectionNameMap::iterator aIt = rMethodNameMap.find( aMethName2 );
+                            if( aIt == rMethodNameMap.end() )
+                            {
+                                // Enter
+                                rMethodNameMap[ aMethName2 ] = iAllExportedMethod;
+
+                                // Maintain table for XExactName
+                                rLowerToExactNameMap[ aMethName2.toAsciiLowerCase() ] = aMethName2;
+                            }
+                            else
+                            {
+                                sal_Int32 iHashResult = aIt->second;
+
+                                Reference<XIdlMethod> xExistingMethod = pAccess->maAllMethodSeq[iHashResult];
+
+                                Reference< XIdlClass > xExistingMethClass =
+                                    xExistingMethod->getDeclaringClass();
+                                Reference< XIdlClass > xNewMethClass = rxMethod->getDeclaringClass();
+                                if( xExistingMethClass->equals( xNewMethClass ) )
+                                    continue;
+                            }
+
+                            pAccess->maAllMethodSeq[iAllExportedMethod] = rxMethod;
+
+                            // If a concept has been set, is the method "normal"?
+                            sal_Int32& rMethodConcept_i = pLocalMethodConcepts[ i ];
+                            if( !rMethodConcept_i )
+                                rMethodConcept_i = MethodConcept_NORMAL_IMPL;
+                            pAccess->maMethodConceptSeq[ iAllExportedMethod ] = rMethodConcept_i;
+                            iAllExportedMethod++;
+                        }
+                        if( pMethodTypes[ i ] == ADD_LISTENER_METHOD )
+                        {
+                            // Determine class of listener
+                            const Reference<XIdlMethod>& rxMethod = pSourceMethods[i];
+
+                            // Enter void as default class
+                            css::uno::Reference<css::reflection::XIdlClass>
+                                xListenerClass(
+                                    reflection->forName(
+                                        cppu::UnoType<void>::get()
+                                        .getTypeName()));
+                            // Old: Reference<XIdlClass> xListenerClass = Void_getReflection()->getIdlClass();
+
+                            // Option 1: Search for parameters for a listener class
+                            // Disadvantage: Superclasses should be searched recursively
+                            const Sequence< Reference<XIdlClass> > aParams = rxMethod->getParameterTypes();
+
+                            css::uno::Reference<css::reflection::XIdlClass>
+                                xEventListenerClass(
+                                    reflection->forName(
+                                        cppu::UnoType<
+                                            css::lang::XEventListener>::get()
+                                        .getTypeName()));
+                            // Old: Reference<XIdlClass> xEventListenerClass = XEventListener_getReflection()->getIdlClass();
+                            auto pParam = std::find_if(aParams.begin(), aParams.end(),
+                                [&xEventListenerClass](const Reference<XIdlClass>& rxClass) {
+                                    // Are we derived from a listener?
+                                    return rxClass->equals( xEventListenerClass )
+                                        || isDerivedFrom( rxClass, xEventListenerClass );
+                                });
+                            if (pParam != aParams.end())
+                            {
+                                xListenerClass = *pParam;
+                            }
+
+                            // Option 2: Unload the name of the method
+                            // Disadvantage: Does not work with test listeners, where it does not exist
+                            //aMethName = rxMethod->getName();
+                            //aListenerName = aMethName.Copy( 3, aMethName.Len()-8-3 );
+                            //Reference<XIdlClass> xListenerClass = reflection->forName( aListenerName );
+                            Type aListenerType( TypeClass_INTERFACE, xListenerClass->getName() );
+                            pAccess->maSupportedListenerSeq[ iAllSupportedListener ] = aListenerType;
+                            iAllSupportedListener++;
+                        }
+                    }
+
+                    // When there were XInterface methods in this run,
+                    // ignore them in the future
+                    if( bFoundXInterface )
+                        bXInterfaceIsInvalid = true;
+                }
+
+                // Do superclasses exist? Then continue here
+                Sequence< Reference<XIdlClass> > aSuperClassSeq = xImplClass2->getSuperclasses();
+
+                // Currently only one superclass is considered
+                if( aSuperClassSeq.getLength() >= 1 )
+                {
+                    xImplClass2 = aSuperClassSeq.getConstArray()[0];
+                    OSL_ENSURE( xImplClass2.is(), "super class null" );
+                }
+                else
+                {
+                    xImplClass2 = nullptr;
+                }
+            }
+        }
+
+        // Apply number of exported methods and adapt Sequences
+        // (can be different because duplicate methods are thrown
+        // out only after the determination of nExportedMethodCount)
+        sal_Int32& rMethCount = pAccess->mnMethCount;
+        rMethCount = iAllExportedMethod;
+        pAccess->maAllMethodSeq.resize( rMethCount );
+        pAccess->maMethodConceptSeq.resize( rMethCount );
+
+        // Resize the property sequences
+        pAccess->maAllPropertySeq.resize( rPropCount );
+        pAccess->maPropertyConceptSeq.resize( rPropCount );
+        pAccess->maMapTypeSeq.resize( rPropCount );
+    }
+    // Register struct fields as properties
+    else //if( eType == TypeClass_STRUCT )
+    {
+        // Is it an interface or a struct?
+        //Reference<XIdlClass> xClassRef = aToInspectObj.getReflection()->getIdlClass();
+        css::uno::Reference<css::reflection::XIdlClass> xClassRef(
+            reflection->forName(aToInspectObj.getValueTypeName()));
+        if( !xClassRef.is() )
+        {
+            SAL_WARN( "stoc", "Can't get XIdlClass from Reflection" );
+            return new ImplIntrospectionAccess(aToInspectObj, pAccess);
+        }
+
+        // Get fields
+        const Sequence< Reference<XIdlField> > fields = xClassRef->getFields();
+
+        for( const Reference<XIdlField>& xField : fields )
+        {
+            Reference<XIdlClass> xPropType = xField->getType();
+            OUString aPropName = xField->getName();
+
+            // Is the property sequence big enough?
+            pAccess->checkPropertyArraysSize( rPropCount );
+
+            // Write it in its property array
+            Property& rProp = rAllPropArray[ rPropCount ];
+            rProp.Name = aPropName;
+            rProp.Handle = rPropCount;
+            rProp.Type = Type( xPropType->getTypeClass(), xPropType->getName() );
+            FieldAccessMode eAccessMode = xField->getAccessMode();
+            rProp.Attributes = (eAccessMode == FieldAccessMode_READONLY ||
+                                eAccessMode == FieldAccessMode_CONST)
+                                ? READONLY : 0;
+
+            //FieldAccessMode eAccessMode = xField->getAccessMode();
+            //rProp.Attributes = (eAccessMode == FieldAccessMode::READONLY || eAccessMode == CONST)
+                //? PropertyAttribute::READONLY : 0;
+
+            // Write name in hash table
+            rPropNameMap[ aPropName ] = rPropCount;
+
+            // Maintain table for XExactName
+            rLowerToExactNameMap[ aPropName.toAsciiLowerCase() ] = aPropName;
+
+            // Remember field
+            IntrospectionAccessStatic_Impl::checkInterfaceArraySize( pAccess->aInterfaceSeq1,
+                rInterfaces1, rPropCount );
+            rInterfaces1[ rPropCount ] = xField;
+
+            // Remember type of property
+            rMapTypeArray[ rPropCount ] = MAP_FIELD;
+            rPropertyConceptArray[ rPropCount ] = ATTRIBUTES;
+            pAccess->mnAttributePropCount++;
+
+            // Adjust count
+            rPropCount++;
+        }
+    }
+
+    // Set property sequence to the correct length
+    pAccess->maAllPropertySeq.resize( pAccess->mnPropCount );
+
+    return new ImplIntrospectionAccess(aToInspectObj, pAccess);
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_Introspection_get_implementation(
+    css::uno::XComponentContext * context,
+    css::uno::Sequence<css::uno::Any> const & arguments)
+{
+    SAL_WARN_IF(
+        arguments.hasElements(), "stoc", "unexpected singleton arguments");
+    return cppu::acquire(new Implementation(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/invocation/invocation.component b/stoc/source/invocation/invocation.component
new file mode 100644
index 0000000000..b5027a4d6d
--- /dev/null
+++ b/stoc/source/invocation/invocation.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.Invocation"
+    constructor="stoc_InvocationService_get_implementation">
+    <service name="com.sun.star.script.Invocation"/>
+  </implementation>
+</component>
diff --git a/stoc/source/invocation/invocation.cxx b/stoc/source/invocation/invocation.cxx
new file mode 100644
index 0000000000..7da24b3ae0
--- /dev/null
+++ b/stoc/source/invocation/invocation.cxx
@@ -0,0 +1,1091 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/implbase.hxx>
+
+#include <com/sun/star/script/CannotConvertException.hpp>
+#include <com/sun/star/script/XTypeConverter.hpp>
+#include <com/sun/star/script/XInvocation.hpp>
+#include <com/sun/star/script/XInvocation2.hpp>
+#include <com/sun/star/reflection/XIdlReflection.hpp>
+#include <com/sun/star/reflection/theCoreReflection.hpp>
+#include <com/sun/star/container/XNameContainer.hpp>
+#include <com/sun/star/container/XIndexContainer.hpp>
+#include <com/sun/star/container/XEnumerationAccess.hpp>
+#include <com/sun/star/beans/XExactName.hpp>
+#include <com/sun/star/beans/XMaterialHolder.hpp>
+#include <com/sun/star/beans/theIntrospection.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/beans/MethodConcept.hpp>
+#include <com/sun/star/beans/PropertyConcept.hpp>
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XTypeProvider.hpp>
+
+#include <memory>
+#include <vector>
+
+using namespace css::uno;
+using namespace css::lang;
+using namespace css::script;
+using namespace css::reflection;
+using namespace css::beans;
+using namespace css::container;
+using namespace cppu;
+using namespace osl;
+
+namespace stoc_inv
+{
+
+
+// TODO: Implement centrally
+static Reference<XIdlClass> TypeToIdlClass( const Type& rType, const Reference< XIdlReflection > & xRefl )
+{
+    return xRefl->forName( rType.getTypeName() );
+}
+
+namespace {
+
+class Invocation_Impl
+    : public OWeakObject
+    , public XInvocation2
+    , public XNameContainer
+    , public XIndexContainer
+    , public XEnumerationAccess
+    , public XExactName
+    , public XMaterialHolder
+    , public XTypeProvider
+{
+public:
+    Invocation_Impl( const Any & rAdapted, const Reference<XTypeConverter> &,
+                                           const Reference<XIntrospection> &,
+                                           const Reference<XIdlReflection> &,
+                                           bool bFromOLE );
+
+    // XInterface
+    virtual Any         SAL_CALL queryInterface( const Type & aType) override;
+    virtual void        SAL_CALL acquire() noexcept override { OWeakObject::acquire(); }
+    virtual void        SAL_CALL release() noexcept override { OWeakObject::release(); }
+
+
+    // XTypeProvider
+    virtual Sequence< css::uno::Type > SAL_CALL getTypes(  ) override;
+    virtual Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) override;
+
+    // XMaterialHolder
+    virtual Any         SAL_CALL getMaterial() override;
+
+    // XInvocation
+    virtual Reference<XIntrospectionAccess> SAL_CALL getIntrospection() override;
+    virtual Any SAL_CALL invoke(const OUString& FunctionName, const Sequence< Any >& Params, Sequence< sal_Int16 >& OutParamIndex, Sequence< Any >& OutParam) override;
+    virtual void SAL_CALL setValue(const OUString& PropertyName, const Any& Value) override;
+    virtual Any SAL_CALL getValue(const OUString& PropertyName) override;
+    virtual sal_Bool SAL_CALL hasMethod(const OUString& Name) override;
+    virtual sal_Bool SAL_CALL hasProperty(const OUString& Name) override;
+
+    // XInvocation2
+    virtual Sequence< OUString > SAL_CALL getMemberNames(  ) override;
+    virtual Sequence< InvocationInfo > SAL_CALL getInfo(  ) override;
+    virtual InvocationInfo SAL_CALL getInfoForName( const OUString& aName, sal_Bool bExact ) override;
+
+    // All Access and Container methods are not thread safe
+    // XElementAccess
+    virtual Type SAL_CALL getElementType() override
+        { return _xElementAccess->getElementType(); }
+
+    virtual sal_Bool SAL_CALL hasElements() override
+        { return _xElementAccess->hasElements(); }
+
+    // XNameContainer
+    virtual void SAL_CALL insertByName( const OUString& Name, const Any& Element ) override
+        { _xNameContainer->insertByName( Name, Element ); }
+
+    virtual void SAL_CALL removeByName( const OUString& Name ) override
+        { _xNameContainer->removeByName( Name ); }
+
+    // XNameReplace
+    virtual void SAL_CALL replaceByName( const OUString& Name, const Any& Element ) override
+        { _xNameReplace->replaceByName( Name, Element ); }
+
+    // XNameAccess
+    virtual Any SAL_CALL getByName( const OUString& Name ) override
+        { return _xNameAccess->getByName( Name ); }
+
+    virtual Sequence<OUString> SAL_CALL getElementNames() override
+        { return _xNameAccess->getElementNames(); }
+
+    virtual sal_Bool SAL_CALL hasByName( const OUString& Name ) override
+        { return _xNameAccess->hasByName( Name ); }
+
+    // XIndexContainer
+    virtual void SAL_CALL insertByIndex( sal_Int32 Index, const Any& Element ) override
+        { _xIndexContainer->insertByIndex( Index, Element ); }
+
+    virtual void SAL_CALL removeByIndex( sal_Int32 Index ) override
+        { _xIndexContainer->removeByIndex( Index ); }
+
+    // XIndexReplace
+    virtual void SAL_CALL replaceByIndex( sal_Int32 Index, const Any& Element ) override
+        { _xIndexReplace->replaceByIndex( Index, Element ); }
+
+    // XIndexAccess
+    virtual sal_Int32 SAL_CALL getCount() override
+        { return _xIndexAccess->getCount(); }
+
+    virtual Any SAL_CALL getByIndex( sal_Int32 Index ) override
+        { return _xIndexAccess->getByIndex( Index ); }
+
+    // XEnumerationAccess
+    virtual Reference<XEnumeration> SAL_CALL createEnumeration() override
+        { return _xEnumerationAccess->createEnumeration(); }
+
+    // XExactName
+    virtual OUString SAL_CALL getExactName( const OUString& rApproximateName ) override;
+
+
+private:
+    void setMaterial( const Any& rMaterial );
+
+    void getInfoSequenceImpl( Sequence< OUString >* pStringSeq, Sequence< InvocationInfo >* pInfoSeq );
+    void fillInfoForNameAccess( InvocationInfo& rInfo, const OUString& aName );
+    static void fillInfoForProperty( InvocationInfo& rInfo, const Property& rProp );
+    static void fillInfoForMethod( InvocationInfo& rInfo, const Reference< XIdlMethod >& xMethod );
+
+    Reference<XTypeConverter>           xTypeConverter;
+    Reference<XIntrospection>           xIntrospection;
+    Reference<XIdlReflection>           xCoreReflection;
+
+    Any                             _aMaterial;
+    // _xDirect and (_xIntrospectionAccess, xPropertySet) are exclusive
+    Reference<XInvocation>              _xDirect;
+    Reference<XInvocation2>             _xDirect2;
+    Reference<XPropertySet>             _xPropertySet;
+    Reference<XIntrospectionAccess>     _xIntrospectionAccess;
+
+    // supplied Interfaces
+    Reference<XNameContainer>           _xNameContainer;
+    Reference<XNameReplace>             _xNameReplace;
+    Reference<XNameAccess>              _xNameAccess;
+    Reference<XIndexContainer>          _xIndexContainer;
+    Reference<XIndexReplace>            _xIndexReplace;
+    Reference<XIndexAccess>             _xIndexAccess;
+    Reference<XEnumerationAccess>       _xEnumerationAccess;
+    Reference<XElementAccess>           _xElementAccess;
+
+
+    Reference<XExactName>               _xENDirect, _xENIntrospection;
+
+    bool                                mbFromOLE;
+};
+
+}
+
+Invocation_Impl::Invocation_Impl
+(
+    const Any & rAdapted,
+    const Reference<XTypeConverter> & rTC,
+    const Reference<XIntrospection> & rI,
+    const Reference<XIdlReflection> & rCR,
+    bool bFromOLE
+)
+    : xTypeConverter( rTC )
+    , xIntrospection( rI )
+    , xCoreReflection( rCR )
+    , mbFromOLE( bFromOLE )
+{
+    setMaterial( rAdapted );
+}
+
+//### INTERFACE IMPLEMENTATIONS ####################################################################
+
+
+Any SAL_CALL Invocation_Impl::queryInterface( const Type & aType )
+{
+    // PropertySet implementation
+    Any a = ::cppu::queryInterface( aType,
+                                   static_cast< XInvocation* >(this),
+                                   static_cast< XMaterialHolder* >(this),
+                                   static_cast< XTypeProvider * >(this) );
+    if( a.hasValue() )
+    {
+        return a;
+    }
+
+    if( aType  == cppu::UnoType<XExactName>::get())
+    {
+        // Invocation does not support XExactName, if direct object supports
+        // XInvocation, but not XExactName. Except when called from OLE Automation.
+        if (mbFromOLE ||
+            (_xDirect.is() && _xENDirect.is()) ||
+            (!_xDirect.is() && _xENIntrospection.is()))
+        {
+            return Any( Reference< XExactName >( static_cast< XExactName* >(this) ) );
+        }
+    }
+    else if ( aType == cppu::UnoType<XNameContainer>::get())
+    {
+        if( _xNameContainer.is() )
+            return Any( Reference< XNameContainer >( static_cast< XNameContainer* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XNameReplace>::get())
+    {
+        if( _xNameReplace.is() )
+            return Any( Reference< XNameReplace >( static_cast< XNameReplace* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XNameAccess>::get())
+    {
+        if( _xNameAccess.is() )
+            return Any( Reference< XNameAccess >( static_cast< XNameAccess* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XIndexContainer>::get())
+    {
+        if (_xIndexContainer.is())
+            return Any( Reference< XIndexContainer >( static_cast< XIndexContainer* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XIndexReplace>::get())
+    {
+        if (_xIndexReplace.is())
+            return Any( Reference< XIndexReplace >( static_cast< XIndexReplace* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XIndexAccess>::get())
+    {
+        if (_xIndexAccess.is())
+            return Any( Reference< XIndexAccess >( static_cast< XIndexAccess* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XEnumerationAccess>::get())
+    {
+        if (_xEnumerationAccess.is())
+            return Any( Reference< XEnumerationAccess >( static_cast< XEnumerationAccess* >(this) ) );
+    }
+    else if ( aType == cppu::UnoType<XElementAccess>::get())
+    {
+        if (_xElementAccess.is())
+        {
+            return Any( Reference< XElementAccess >(
+                static_cast< XElementAccess* >(static_cast< XNameContainer* >(this)) ) );
+        }
+    }
+    else if ( aType == cppu::UnoType<XInvocation2>::get())
+    {
+        // Invocation does not support XInvocation2, if direct object supports
+        // XInvocation, but not XInvocation2.
+        if ( mbFromOLE ||
+             ( _xDirect.is() && _xDirect2.is()) ||
+             (!_xDirect.is() && _xIntrospectionAccess.is() ) )
+        {
+            return Any( Reference< XInvocation2 >( static_cast< XInvocation2* >(this) ) );
+        }
+    }
+
+    return OWeakObject::queryInterface( aType );
+}
+
+
+Any Invocation_Impl::getMaterial()
+{
+    // AB, 12.2.1999  Make sure that the material is taken when possible
+    // from the direct Invocation of the Introspection, otherwise structs
+    // are not handled correctly
+    Reference<XMaterialHolder> xMaterialHolder;
+    if( _xDirect.is() )
+    {
+        xMaterialHolder.set( _xDirect, UNO_QUERY );
+        //_xDirect->queryInterface( XMaterialHolder::getSmartUik(), xMaterialHolder );
+    }
+    else if( _xIntrospectionAccess.is() )
+    {
+        xMaterialHolder.set( _xIntrospectionAccess, UNO_QUERY );
+        //_xIntrospectionAccess->queryInterface( XMaterialHolder::getSmartUik(), xMaterialHolder );
+    }
+    if( xMaterialHolder.is() )
+    {
+        return xMaterialHolder->getMaterial();
+    }
+    return _aMaterial;
+}
+
+
+void Invocation_Impl::setMaterial( const Any& rMaterial )
+{
+    // set the material first and only once
+    _aMaterial = rMaterial;
+
+    // First do this outside the guard
+    _xDirect.set( rMaterial, UNO_QUERY );
+
+    if( !mbFromOLE && _xDirect.is() )
+    {
+        // Consult object directly
+        _xElementAccess.set( _xDirect, UNO_QUERY );
+        _xEnumerationAccess.set( _xDirect, UNO_QUERY );
+        _xIndexAccess.set( _xDirect, UNO_QUERY );
+        _xIndexReplace.set( _xDirect, UNO_QUERY );
+        _xIndexContainer.set( _xDirect, UNO_QUERY );
+        _xNameAccess.set( _xDirect, UNO_QUERY );
+        _xNameReplace.set( _xDirect, UNO_QUERY );
+        _xNameContainer.set( _xDirect, UNO_QUERY );
+        _xENDirect.set( _xDirect, UNO_QUERY );
+        _xDirect2.set( _xDirect, UNO_QUERY );
+    }
+    else
+    {
+        // Make Invocation on the Introspection
+        if (xIntrospection.is())
+        {
+            _xIntrospectionAccess = xIntrospection->inspect( _aMaterial );
+            if( _xIntrospectionAccess.is() )
+            {
+                _xElementAccess.set(
+                      _xIntrospectionAccess->queryAdapter(
+                                 cppu::UnoType<XElementAccess>::get()), UNO_QUERY );
+
+                if( _xElementAccess.is() )
+                {
+                    _xEnumerationAccess.set(
+                               _xIntrospectionAccess->queryAdapter(
+                                    cppu::UnoType<XEnumerationAccess>::get()), UNO_QUERY );
+
+                    _xIndexAccess.set(
+                           _xIntrospectionAccess->queryAdapter(
+                                    cppu::UnoType<XIndexAccess>::get()), UNO_QUERY );
+
+                    if( _xIndexAccess.is() )
+                    {
+                        _xIndexReplace.set(
+                             _xIntrospectionAccess->queryAdapter(
+                                        cppu::UnoType<XIndexReplace>::get()), UNO_QUERY );
+
+                        _xIndexContainer.set(
+                             _xIntrospectionAccess->queryAdapter(
+                                        cppu::UnoType<XIndexContainer>::get()), UNO_QUERY );
+                    }
+
+                    _xNameAccess.set(
+                         _xIntrospectionAccess->queryAdapter(
+                                    cppu::UnoType<XNameAccess>::get()), UNO_QUERY );
+
+                    if( _xNameAccess.is() )
+                    {
+                        _xNameReplace.set(
+                                   _xIntrospectionAccess->queryAdapter(
+                                       cppu::UnoType<XNameReplace>::get()), UNO_QUERY );
+
+                        _xNameContainer.set(
+                                   _xIntrospectionAccess->queryAdapter(
+                                       cppu::UnoType<XNameContainer>::get()), UNO_QUERY );
+                    }
+                }
+
+                _xPropertySet.set( _xIntrospectionAccess->queryAdapter( cppu::UnoType<XPropertySet>::get()),
+                                   UNO_QUERY );
+
+                _xENIntrospection.set( _xIntrospectionAccess, UNO_QUERY );
+            }
+        }
+    }
+}
+
+
+OUString Invocation_Impl::getExactName( const OUString& rApproximateName )
+{
+    if (_xENDirect.is())
+        return _xENDirect->getExactName( rApproximateName );
+
+    OUString aRet;
+    if (_xENIntrospection.is())
+        aRet = _xENIntrospection->getExactName( rApproximateName );
+    return aRet;
+}
+
+
+Reference<XIntrospectionAccess> Invocation_Impl::getIntrospection()
+{
+    if( _xDirect.is() )
+        return _xDirect->getIntrospection();
+    else
+        return _xIntrospectionAccess;
+}
+
+
+sal_Bool Invocation_Impl::hasMethod( const OUString& Name )
+{
+    if (!mbFromOLE && _xDirect.is())
+        return _xDirect->hasMethod( Name );
+    if( _xIntrospectionAccess.is() )
+        return _xIntrospectionAccess->hasMethod( Name, MethodConcept::ALL ^ MethodConcept::DANGEROUS );
+    return false;
+}
+
+
+sal_Bool Invocation_Impl::hasProperty( const OUString& Name )
+{
+    if (_xDirect.is())
+    {
+        bool bRet = _xDirect->hasProperty( Name );
+        if (bRet || !mbFromOLE)
+            return bRet;
+    }
+    // PropertySet
+    if( _xIntrospectionAccess.is()
+        && _xIntrospectionAccess->hasProperty( Name, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS ) )
+        return true;
+    // NameAccess
+    if( _xNameAccess.is() )
+        return _xNameAccess->hasByName( Name );
+    return false;
+}
+
+
+Any Invocation_Impl::getValue( const OUString& PropertyName )
+{
+    try
+    {
+        if (_xDirect.is())
+            return _xDirect->getValue( PropertyName );
+    }
+    catch (Exception &)
+    {
+        if (!mbFromOLE)
+            throw;
+    }
+    try
+    {
+        // PropertySet
+        if( _xIntrospectionAccess.is() && _xPropertySet.is()
+            && _xIntrospectionAccess->hasProperty
+            ( PropertyName, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS ) )
+        {
+            return _xPropertySet->getPropertyValue( PropertyName );
+        }
+        // NameAccess
+        if( _xNameAccess.is() && _xNameAccess->hasByName( PropertyName ) )
+            return _xNameAccess->getByName( PropertyName );
+    }
+    catch (UnknownPropertyException &)
+    {
+        throw;
+    }
+    catch (RuntimeException &)
+    {
+        throw;
+    }
+    catch (Exception &)
+    {
+    }
+
+    throw UnknownPropertyException( "cannot get value " + PropertyName );
+}
+
+
+void Invocation_Impl::setValue( const OUString& PropertyName, const Any& Value )
+{
+    try
+    {
+        if (_xDirect.is())
+        {
+            _xDirect->setValue( PropertyName, Value );
+            return;
+        }
+    }
+    catch (Exception &)
+    {
+        if (!mbFromOLE)
+            throw;
+    }
+    try
+    {
+        // Properties
+        if( _xIntrospectionAccess.is() && _xPropertySet.is()
+            && _xIntrospectionAccess->hasProperty(
+                PropertyName, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS ) )
+        {
+            Property aProp = _xIntrospectionAccess->getProperty(
+                PropertyName, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS );
+            Reference < XIdlClass > r = TypeToIdlClass( aProp.Type, xCoreReflection );
+            if( r->isAssignableFrom( TypeToIdlClass( Value.getValueType(), xCoreReflection ) ) )
+                _xPropertySet->setPropertyValue( PropertyName, Value );
+            else if( xTypeConverter.is() )
+                _xPropertySet->setPropertyValue(
+                    PropertyName, xTypeConverter->convertTo( Value, aProp.Type ) );
+            else
+                throw RuntimeException( "no type converter service!" );
+        }
+        // NameContainer
+        else if( _xNameContainer.is() )
+        {
+            // Note: This misfeature deliberately not adapted to apply to objects which
+            // have XNameReplace but not XNameContainer
+            Any aConv;
+            Reference < XIdlClass > r =
+                TypeToIdlClass( _xNameContainer->getElementType(), xCoreReflection );
+            if( r->isAssignableFrom(TypeToIdlClass( Value.getValueType(), xCoreReflection ) ) )
+                aConv = Value;
+            else if( xTypeConverter.is() )
+                aConv = xTypeConverter->convertTo( Value, _xNameContainer->getElementType() );
+            else
+                throw RuntimeException( "no type converter service!" );
+
+            // Replace if present, otherwise insert
+            if (_xNameContainer->hasByName( PropertyName ))
+                _xNameContainer->replaceByName( PropertyName, aConv );
+            else
+                _xNameContainer->insertByName( PropertyName, aConv );
+        }
+        else
+            throw UnknownPropertyException( "no introspection nor name container!" );
+    }
+    catch (UnknownPropertyException &)
+    {
+        throw;
+    }
+    catch (CannotConvertException &)
+    {
+        throw;
+    }
+    catch (InvocationTargetException &)
+    {
+        throw;
+    }
+    catch (RuntimeException &)
+    {
+        throw;
+    }
+    catch (const Exception & exc)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw InvocationTargetException(
+            "exception occurred in setValue(): " + exc.Message,
+            Reference< XInterface >(), anyEx );
+    }
+}
+
+
+Any Invocation_Impl::invoke( const OUString& FunctionName, const Sequence<Any>& InParams,
+                                Sequence<sal_Int16>& OutIndices, Sequence<Any>& OutParams )
+{
+    if (!mbFromOLE && _xDirect.is())
+        return _xDirect->invoke( FunctionName, InParams, OutIndices, OutParams );
+
+    if (_xIntrospectionAccess.is())
+    {
+        // throw NoSuchMethodException if not exist
+        Reference<XIdlMethod> xMethod = _xIntrospectionAccess->getMethod(
+            FunctionName, MethodConcept::ALL ^ MethodConcept::DANGEROUS );
+
+        // ParameterInfos
+        Sequence<ParamInfo> aFParams        = xMethod->getParameterInfos();
+        const ParamInfo* pFParams           = aFParams.getConstArray();
+        sal_Int32 nFParamsLen               = aFParams.getLength();
+        if (nFParamsLen != InParams.getLength())
+        {
+            throw IllegalArgumentException(
+                "incorrect number of parameters passed invoking function " + FunctionName +
+                ": expected " + OUString::number(nFParamsLen) + ", got " + OUString::number(InParams.getLength()),
+                getXWeak(), sal_Int16(1) );
+        }
+
+        // IN Parameter
+        const Any* pInParams                = InParams.getConstArray();
+
+        // Introspection Invoke Parameter
+        Sequence<Any> aInvokeParams( nFParamsLen );
+        Any* pInvokeParams                  = aInvokeParams.getArray();
+
+        // OUT Indices
+        OutIndices.realloc( nFParamsLen );
+        sal_Int16* pOutIndices              = OutIndices.getArray();
+        sal_uInt32 nOutIndex                = 0;
+
+        for ( sal_Int32 nPos = 0; nPos < nFParamsLen; ++nPos )
+        {
+            try
+            {
+                const ParamInfo& rFParam = pFParams[nPos];
+                const Reference<XIdlClass>& rDestType = rFParam.aType;
+
+                // is IN/INOUT parameter?
+                if (rFParam.aMode != ParamMode_OUT)
+                {
+                    if (rDestType->isAssignableFrom( TypeToIdlClass( pInParams[nPos].getValueType(), xCoreReflection ) ))
+                    {
+                        pInvokeParams[nPos] = pInParams[nPos];
+                    }
+                    else if (xTypeConverter.is())
+                    {
+                        Type aDestType( rDestType->getTypeClass(), rDestType->getName() );
+                        pInvokeParams[nPos] = xTypeConverter->convertTo( pInParams[nPos], aDestType );
+                    }
+                    else
+                    {
+                        throw CannotConvertException("invocation type mismatch!", *this, {}, 0, 0);
+                    }
+                }
+
+                // is OUT/INOUT parameter?
+                if (rFParam.aMode != ParamMode_IN)
+                {
+                    pOutIndices[nOutIndex] = static_cast<sal_Int16>(nPos);
+                    if (rFParam.aMode == ParamMode_OUT)
+                        rDestType->createObject( pInvokeParams[nPos] );     // default init
+                    ++nOutIndex;
+                }
+            }
+            catch( CannotConvertException& rExc )
+            {
+                rExc.ArgumentIndex = nPos;  // Add optional parameter index
+                throw;
+            }
+        }
+
+        // execute Method
+        Any aRet = xMethod->invoke( _aMaterial, aInvokeParams );
+
+        // OUT Params
+        OutIndices.realloc( nOutIndex );
+        OutParams.realloc( nOutIndex );
+
+        std::transform(std::cbegin(OutIndices), std::cend(OutIndices), OutParams.getArray(),
+            [&pInvokeParams](const sal_Int16 nIndex) -> Any { return pInvokeParams[nIndex]; });
+
+        return aRet;
+    }
+
+    throw RuntimeException("invocation lacking of introspection access!", *this);
+}
+
+namespace {
+
+// Struct to optimize sorting
+struct MemberItem
+{
+    OUString aName;
+
+    // Defines where the member comes from
+    enum class Mode { NameAccess, PropertySet, Method };
+    Mode eMode;
+
+    // Index to respective sequence
+    // (Index to NameAccess sequence for eMode==Mode::NameAccess etc.)
+    sal_Int32 nIndex;
+};
+
+}
+
+// Implementation of getting name or info
+// String sequence will be filled when pStringSeq != NULL
+// Info sequence will be filled when pInfoSeq != NULL
+void Invocation_Impl::getInfoSequenceImpl
+(
+    Sequence< OUString >* pStringSeq,
+    Sequence< InvocationInfo >* pInfoSeq
+)
+{
+    //Sequence< OUString > aStrSeq;
+    //if( !pStringSeq )
+        //pStringSeq = &aStrSeq;
+
+
+    // Get all needed sequences
+    Sequence<OUString> aNameAccessNames;
+    Sequence<Property> aPropertySeq;
+    Sequence< Reference< XIdlMethod > > aMethodSeq;
+
+    if( _xNameAccess.is() )
+    {
+        aNameAccessNames = _xNameAccess->getElementNames();
+    }
+
+    if( _xIntrospectionAccess.is() )
+    {
+        aPropertySeq = _xIntrospectionAccess->getProperties
+            ( PropertyConcept::ALL - PropertyConcept::DANGEROUS );
+
+        aMethodSeq = _xIntrospectionAccess->getMethods
+            ( MethodConcept::ALL - MethodConcept::DANGEROUS );
+    }
+
+    sal_Int32 nNameAccessCount = aNameAccessNames.getLength();
+    sal_Int32 nPropertyCount = aPropertySeq.getLength();
+    sal_Int32 nMethodCount = aMethodSeq.getLength();
+    sal_Int32 nTotalCount = nNameAccessCount + nPropertyCount + nMethodCount;
+
+    // Create and fill array of MemberItems
+    std::unique_ptr< MemberItem []> pItems( new MemberItem[ nTotalCount ] );
+    const OUString* pStrings = aNameAccessNames.getConstArray();
+    const Property* pProps = aPropertySeq.getConstArray();
+    const Reference< XIdlMethod >* pMethods = aMethodSeq.getConstArray();
+
+    // Fill array of MemberItems
+    sal_Int32 i, iTotal = 0;
+
+    // Name Access
+    for( i = 0 ; i < nNameAccessCount ; i++, iTotal++ )
+    {
+        MemberItem& rItem = pItems[ iTotal ];
+        rItem.aName = pStrings[ i ];
+        rItem.eMode = MemberItem::Mode::NameAccess;
+        rItem.nIndex = i;
+    }
+
+    // Property set
+    for( i = 0 ; i < nPropertyCount ; i++, iTotal++ )
+    {
+        MemberItem& rItem = pItems[ iTotal ];
+        rItem.aName = pProps[ i ].Name;
+        rItem.eMode = MemberItem::Mode::PropertySet;
+        rItem.nIndex = i;
+    }
+
+    // Methods
+    for( i = 0 ; i < nMethodCount ; i++, iTotal++ )
+    {
+        MemberItem& rItem = pItems[ iTotal ];
+        Reference< XIdlMethod > xMethod = pMethods[ i ];
+        rItem.aName = xMethod->getName();
+        rItem.eMode = MemberItem::Mode::Method;
+        rItem.nIndex = i;
+    }
+
+    // Setting up result sequences
+    OUString* pRetStrings = nullptr;
+    if( pStringSeq )
+    {
+        pStringSeq->realloc( nTotalCount );
+        pRetStrings = pStringSeq->getArray();
+    }
+
+    InvocationInfo* pRetInfos = nullptr;
+    if( pInfoSeq )
+    {
+        pInfoSeq->realloc( nTotalCount );
+        pRetInfos = pInfoSeq->getArray();
+    }
+
+    // Fill result sequences in the correct order of members
+    for( iTotal = 0 ; iTotal < nTotalCount ; iTotal++ )
+    {
+        MemberItem& rItem = pItems[ iTotal ];
+        if( pRetStrings )
+        {
+            pRetStrings[ iTotal ] = rItem.aName;
+        }
+
+        if( pRetInfos )
+        {
+            if( rItem.eMode == MemberItem::Mode::NameAccess )
+            {
+                fillInfoForNameAccess( pRetInfos[ iTotal ], rItem.aName );
+            }
+            else if( rItem.eMode == MemberItem::Mode::PropertySet )
+            {
+                fillInfoForProperty( pRetInfos[ iTotal ], pProps[ rItem.nIndex ] );
+            }
+            else if( rItem.eMode == MemberItem::Mode::Method )
+            {
+                fillInfoForMethod( pRetInfos[ iTotal ], pMethods[ rItem.nIndex ] );
+            }
+        }
+    }
+}
+
+// XInvocation2
+Sequence< OUString > SAL_CALL Invocation_Impl::getMemberNames(  )
+{
+    if( _xDirect2.is() )
+    {
+        return _xDirect2->getMemberNames();
+    }
+    Sequence< OUString > aRetSeq;
+    getInfoSequenceImpl( &aRetSeq, nullptr );
+    return aRetSeq;
+}
+
+Sequence< InvocationInfo > SAL_CALL Invocation_Impl::getInfo(  )
+{
+    if( _xDirect2.is() )
+    {
+        return _xDirect2->getInfo();
+    }
+    Sequence< InvocationInfo > aRetSeq;
+    getInfoSequenceImpl( nullptr, &aRetSeq );
+    return aRetSeq;
+}
+
+InvocationInfo SAL_CALL Invocation_Impl::getInfoForName( const OUString& aName, sal_Bool bExact )
+{
+    if( _xDirect2.is() )
+    {
+        return _xDirect2->getInfoForName( aName, bExact );
+    }
+
+    bool bFound = false;
+    OUString aExactName = aName;
+    InvocationInfo aRetInfo;
+
+    if( bExact )
+        aExactName = getExactName( aName );
+    if( !aExactName.isEmpty() )
+    {
+        if( _xIntrospectionAccess->hasMethod( aExactName, MethodConcept::ALL ^ MethodConcept::DANGEROUS ) )
+        {
+            Reference<XIdlMethod> xMethod = _xIntrospectionAccess->getMethod
+                ( aExactName, MethodConcept::ALL ^ MethodConcept::DANGEROUS );
+            fillInfoForMethod( aRetInfo, xMethod );
+            bFound = true;
+        }
+        else
+        {
+            if( _xIntrospectionAccess.is() && _xIntrospectionAccess->hasProperty
+                 ( aExactName, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS ) )
+            {
+                Property aProp = _xIntrospectionAccess->getProperty
+                    ( aExactName, PropertyConcept::ALL ^ PropertyConcept::DANGEROUS );
+                fillInfoForProperty( aRetInfo, aProp );
+                bFound = true;
+            }
+            // NameAccess
+            else if( _xNameAccess.is() && _xNameAccess->hasByName( aExactName ) )
+            {
+                fillInfoForNameAccess( aRetInfo, aExactName );
+                bFound = true;
+            }
+        }
+    }
+    if( !bFound )
+    {
+        throw IllegalArgumentException(
+            "getExactName(), Unknown name " + aName,
+            getXWeak(), 0 );
+    }
+    return aRetInfo;
+}
+
+// Helper functions to fill InvocationInfo for XNameAccess
+void Invocation_Impl::fillInfoForNameAccess
+(
+    InvocationInfo& rInfo,
+    const OUString& aName
+)
+{
+    rInfo.aName = aName;
+    rInfo.eMemberType = MemberType_PROPERTY;
+    rInfo.PropertyAttribute = 0;
+    if( !_xNameContainer.is() )
+    {
+        rInfo.PropertyAttribute = PropertyAttribute::READONLY;
+    }
+    rInfo.aType = _xNameAccess->getElementType();
+}
+
+void Invocation_Impl::fillInfoForProperty
+(
+    InvocationInfo& rInfo,
+    const Property& rProp
+)
+{
+    rInfo.aName = rProp.Name;
+    rInfo.eMemberType = MemberType_PROPERTY;
+    rInfo.PropertyAttribute = rProp.Attributes;
+    rInfo.aType = rProp.Type;
+}
+
+void Invocation_Impl::fillInfoForMethod
+(
+    InvocationInfo& rInfo,
+    const Reference< XIdlMethod >& xMethod
+)
+{
+    rInfo.aName = xMethod->getName();
+    rInfo.eMemberType = MemberType_METHOD;
+    Reference< XIdlClass > xReturnClass = xMethod->getReturnType();
+    Type aReturnType( xReturnClass->getTypeClass(), xReturnClass->getName() );
+    rInfo.aType = aReturnType;
+    Sequence<ParamInfo> aParamInfos = xMethod->getParameterInfos();
+    sal_Int32 nParamCount = aParamInfos.getLength();
+    if( nParamCount <= 0 )
+        return;
+
+    const ParamInfo* pInfo = aParamInfos.getConstArray();
+
+    rInfo.aParamTypes.realloc( nParamCount );
+    Type* pParamTypes = rInfo.aParamTypes.getArray();
+    rInfo.aParamModes.realloc( nParamCount );
+    ParamMode* pParamModes = rInfo.aParamModes.getArray();
+
+    for( sal_Int32 i = 0 ; i < nParamCount ; i++ )
+    {
+        Reference< XIdlClass > xParamClass = pInfo[i].aType;
+        Type aParamType( xParamClass->getTypeClass(), xParamClass->getName() );
+        pParamTypes[ i ] = aParamType;
+        pParamModes[ i ] = pInfo[i].aMode;
+    }
+}
+
+
+// XTypeProvider
+Sequence< Type > SAL_CALL Invocation_Impl::getTypes()
+{
+    static Sequence<Type> s_types = [this]() {
+        std::vector<Type> tmp {
+            cppu::UnoType<XTypeProvider>::get(),
+            cppu::UnoType<XWeak>::get(),
+            cppu::UnoType<XInvocation>::get(),
+            cppu::UnoType<XMaterialHolder>::get() };
+
+        // Invocation does not support XExactName if direct object supports
+        // XInvocation, but not XExactName.
+        if ((_xDirect.is() && _xENDirect.is()) || (!_xDirect.is() && _xENIntrospection.is()))
+            tmp.push_back(cppu::UnoType<XExactName>::get());
+        if (_xNameContainer.is())
+            tmp.push_back(cppu::UnoType<XNameContainer>::get());
+        if (_xNameReplace.is())
+            tmp.push_back(cppu::UnoType<XNameReplace>::get());
+        if (_xNameAccess.is())
+            tmp.push_back(cppu::UnoType<XNameAccess>::get());
+        if (_xIndexContainer.is())
+            tmp.push_back(cppu::UnoType<XIndexContainer>::get());
+        if (_xIndexReplace.is())
+            tmp.push_back(cppu::UnoType<XIndexReplace>::get());
+        if (_xIndexAccess.is())
+            tmp.push_back(cppu::UnoType<XIndexAccess>::get());
+        if (_xEnumerationAccess.is())
+            tmp.push_back(cppu::UnoType<XEnumerationAccess>::get());
+        if (_xElementAccess.is())
+            tmp.push_back(cppu::UnoType<XElementAccess>::get());
+        // Invocation does not support XInvocation2, if direct object supports
+        // XInvocation, but not XInvocation2.
+        if ((_xDirect.is() && _xDirect2.is()) || (!_xDirect.is() && _xIntrospectionAccess.is()))
+            tmp.push_back(cppu::UnoType<XInvocation2>::get());
+
+        return comphelper::containerToSequence(tmp);
+    }();
+    return s_types;
+}
+
+Sequence< sal_Int8 > SAL_CALL Invocation_Impl::getImplementationId(  )
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+namespace {
+
+class InvocationService
+    : public WeakImplHelper< XSingleServiceFactory, XServiceInfo >
+{
+public:
+    explicit InvocationService( const Reference<XComponentContext> & xCtx );
+
+    // XServiceInfo
+    OUString                    SAL_CALL getImplementationName() override;
+    sal_Bool                        SAL_CALL supportsService(const OUString& ServiceName) override;
+    Sequence< OUString >        SAL_CALL getSupportedServiceNames() override;
+
+    // XSingleServiceFactory
+    Reference<XInterface>       SAL_CALL createInstance() override;
+    Reference<XInterface>       SAL_CALL createInstanceWithArguments(
+        const Sequence<Any>& rArguments ) override;
+private:
+    Reference<XComponentContext> mxCtx;
+    Reference<XMultiComponentFactory> mxSMgr;
+    Reference<XTypeConverter> xTypeConverter;
+    Reference<XIntrospection> xIntrospection;
+    Reference<XIdlReflection> xCoreReflection;
+};
+
+}
+
+InvocationService::InvocationService( const Reference<XComponentContext> & xCtx )
+    : mxCtx( xCtx )
+    , mxSMgr( xCtx->getServiceManager() )
+    , xCoreReflection( css::reflection::theCoreReflection::get(mxCtx) )
+{
+    xTypeConverter.set(
+        mxSMgr->createInstanceWithContext( "com.sun.star.script.Converter", xCtx ),
+        UNO_QUERY );
+    xIntrospection = theIntrospection::get(xCtx);
+}
+
+// XServiceInfo
+OUString InvocationService::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.Invocation";
+}
+
+// XServiceInfo
+sal_Bool InvocationService::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+// XServiceInfo
+Sequence< OUString > InvocationService::getSupportedServiceNames()
+{
+    return { "com.sun.star.script.Invocation" };
+}
+
+
+Reference<XInterface> InvocationService::createInstance()
+{
+    //TODO:throw( Exception("no default construction of invocation adapter possible!", *this) );
+    return Reference<XInterface>(); // dummy
+}
+
+
+Reference<XInterface> InvocationService::createInstanceWithArguments(
+    const Sequence<Any>& rArguments )
+{
+    if (rArguments.getLength() == 2)
+    {
+        OUString aArg1;
+        if ((rArguments[1] >>= aArg1) &&
+            aArg1 == "FromOLE")
+        {
+            return Reference< XInterface >
+                ( *new Invocation_Impl( *rArguments.getConstArray(),
+                                        xTypeConverter, xIntrospection, xCoreReflection, true ) );
+        }
+    }
+    if (rArguments.getLength() == 1)
+    {
+        return Reference< XInterface >
+            ( *new Invocation_Impl( *rArguments.getConstArray(),
+                                    xTypeConverter, xIntrospection, xCoreReflection, false ) );
+    }
+
+    //TODO:throw( Exception("no default construction of invocation adapter possible!", *this) );
+    return Reference<XInterface>();
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_InvocationService_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new InvocationService(context));
+}
+
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/invocation_adapterfactory/iafactory.cxx b/stoc/source/invocation_adapterfactory/iafactory.cxx
new file mode 100644
index 0000000000..b5b62db089
--- /dev/null
+++ b/stoc/source/invocation_adapterfactory/iafactory.cxx
@@ -0,0 +1,881 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <osl/diagnose.h>
+#include <osl/interlck.h>
+#include <osl/mutex.hxx>
+#include <o3tl/sorted_vector.hxx>
+#include <sal/log.hxx>
+
+#include <uno/dispatcher.h>
+#include <uno/data.h>
+#include <uno/any2.h>
+#include <uno/lbnames.h>
+#include <uno/mapping.hxx>
+
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/script/XTypeConverter.hpp>
+#include <com/sun/star/script/XInvocationAdapterFactory.hpp>
+#include <com/sun/star/script/XInvocationAdapterFactory2.hpp>
+#include <com/sun/star/script/XInvocation.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/reflection/InvocationTargetException.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include <unordered_map>
+#include <vector>
+
+using namespace ::osl;
+using namespace ::com::sun::star;
+using namespace css::uno;
+
+namespace stoc_invadp
+{
+
+
+namespace {
+
+struct hash_ptr
+{
+    size_t operator() ( void * p ) const
+        { return reinterpret_cast<size_t>(p); }
+};
+
+}
+
+typedef o3tl::sorted_vector< void * > t_ptr_set;
+typedef std::unordered_map< void *, t_ptr_set, hash_ptr > t_ptr_map;
+
+namespace {
+
+class FactoryImpl
+    : public ::cppu::WeakImplHelper< lang::XServiceInfo,
+                                      script::XInvocationAdapterFactory,
+                                      script::XInvocationAdapterFactory2 >
+{
+public:
+    Mapping m_aUno2Cpp;
+    Mapping m_aCpp2Uno;
+    uno_Interface * m_pConverter;
+
+    typelib_TypeDescription * m_pInvokMethodTD;
+    typelib_TypeDescription * m_pSetValueTD;
+    typelib_TypeDescription * m_pGetValueTD;
+    typelib_TypeDescription * m_pAnySeqTD;
+    typelib_TypeDescription * m_pShortSeqTD;
+    typelib_TypeDescription * m_pConvertToTD;
+
+    Mutex m_mutex;
+    t_ptr_map m_receiver2adapters;
+
+    explicit FactoryImpl( Reference< XComponentContext > const & xContext );
+    virtual ~FactoryImpl() override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString & rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XInvocationAdapterFactory
+    virtual Reference< XInterface > SAL_CALL createAdapter(
+        const Reference< script::XInvocation > & xReceiver, const Type & rType ) override;
+    // XInvocationAdapterFactory2
+    virtual Reference< XInterface > SAL_CALL createAdapter(
+        const Reference< script::XInvocation > & xReceiver,
+        const Sequence< Type > & rTypes ) override;
+};
+struct AdapterImpl;
+
+struct InterfaceAdapterImpl : public uno_Interface
+{
+    AdapterImpl *                           m_pAdapter;
+    typelib_InterfaceTypeDescription *      m_pTypeDescr;
+};
+
+struct AdapterImpl
+{
+    oslInterlockedCount         m_nRef;
+    FactoryImpl *               m_pFactory;
+    void *                      m_key; // map key
+    uno_Interface *             m_pReceiver; // XInvocation receiver
+
+    std::vector<InterfaceAdapterImpl>  m_vInterfaces;
+
+    // XInvocation calls
+    void getValue(
+        const typelib_TypeDescription * pMemberType,
+        void * pReturn, uno_Any ** ppException );
+    void setValue(
+        const typelib_TypeDescription * pMemberType,
+        void * pArgs[], uno_Any ** ppException );
+    void invoke(
+        const typelib_TypeDescription * pMemberType,
+        void * pReturn, void * pArgs[], uno_Any ** ppException );
+
+    bool coerce_assign(
+        void * pDest, typelib_TypeDescriptionReference * pType,
+        uno_Any * pSource, uno_Any * pExc );
+    inline bool coerce_construct(
+        void * pDest, typelib_TypeDescriptionReference * pType,
+        uno_Any * pSource, uno_Any * pExc );
+
+    inline void acquire();
+    inline void release();
+    inline ~AdapterImpl();
+    inline AdapterImpl(
+        void * key, Reference< script::XInvocation > const & xReceiver,
+        const Sequence< Type > & rTypes,
+        FactoryImpl * pFactory );
+
+    // Copy assignment is forbidden and not implemented.
+    AdapterImpl (const AdapterImpl &) = delete;
+    AdapterImpl & operator= (const AdapterImpl &) = delete;
+};
+
+}
+
+inline AdapterImpl::~AdapterImpl()
+{
+    for ( size_t nPos = m_vInterfaces.size(); nPos--; )
+    {
+        ::typelib_typedescription_release(
+            &m_vInterfaces[ nPos ].m_pTypeDescr->aBase );
+    }
+
+    (*m_pReceiver->release)( m_pReceiver );
+    m_pFactory->release();
+}
+
+inline void AdapterImpl::acquire()
+{
+    osl_atomic_increment( &m_nRef );
+}
+
+inline void AdapterImpl::release()
+{
+    bool delete_this = false;
+    {
+    MutexGuard guard( m_pFactory->m_mutex );
+    if (! osl_atomic_decrement( &m_nRef ))
+    {
+        t_ptr_map::iterator iFind(
+            m_pFactory->m_receiver2adapters.find( m_key ) );
+        assert( m_pFactory->m_receiver2adapters.end() != iFind );
+        t_ptr_set & adapter_set = iFind->second;
+        if (adapter_set.erase( this ) != 1) {
+            OSL_ASSERT( false );
+        }
+        if (adapter_set.empty())
+        {
+            m_pFactory->m_receiver2adapters.erase( iFind );
+        }
+        delete_this = true;
+    }
+    }
+    if (delete_this)
+        delete this;
+}
+
+
+static void constructRuntimeException(
+    uno_Any * pExc, const OUString & rMsg )
+{
+    RuntimeException exc( rMsg );
+    // no conversion needed due to binary compatibility + no convertible type
+    ::uno_type_any_construct(
+        pExc, &exc, cppu::UnoType<decltype(exc)>::get().getTypeLibType(), nullptr );
+}
+
+
+static bool type_equals(
+    typelib_TypeDescriptionReference * pType1,
+    typelib_TypeDescriptionReference * pType2 )
+{
+    return (pType1 == pType2 ||
+            (pType1->pTypeName->length == pType2->pTypeName->length &&
+             0 == ::rtl_ustr_compare(
+                 pType1->pTypeName->buffer, pType2->pTypeName->buffer )));
+}
+
+
+bool AdapterImpl::coerce_assign(
+    void * pDest, typelib_TypeDescriptionReference * pType, uno_Any * pSource,
+    uno_Any * pOutExc )
+{
+    if (typelib_TypeClass_ANY == pType->eTypeClass)
+    {
+        ::uno_type_any_assign(
+            static_cast<uno_Any *>(pDest), pSource->pData, pSource->pType, nullptr, nullptr );
+        return true;
+    }
+    if (::uno_type_assignData(
+            pDest, pType, pSource->pData, pSource->pType, nullptr, nullptr, nullptr ))
+    {
+        return true;
+    }
+    else // try type converter
+    {
+        uno_Any ret;
+        void * args[ 2 ];
+        args[ 0 ] = pSource;
+        args[ 1 ] = &pType;
+        uno_Any exc;
+        uno_Any * p_exc = &exc;
+
+        // converTo()
+        (*m_pFactory->m_pConverter->pDispatcher)(
+            m_pFactory->m_pConverter,
+            m_pFactory->m_pConvertToTD, &ret, args, &p_exc );
+
+        if (p_exc) // exception occurred
+        {
+            OSL_ASSERT(
+                p_exc->pType->eTypeClass == typelib_TypeClass_EXCEPTION );
+            if (typelib_typedescriptionreference_isAssignableFrom( cppu::UnoType<RuntimeException>::get().getTypeLibType(),
+                    p_exc->pType ))
+            {
+                // is RuntimeException or derived: rethrow
+                uno_type_any_construct(
+                    pOutExc, p_exc->pData, p_exc->pType, nullptr );
+            }
+            else
+            {
+                // set runtime exception
+                constructRuntimeException(
+                    pOutExc, "type coercion failed: " +
+                    static_cast< Exception const * >(
+                        p_exc->pData )->Message );
+            }
+            ::uno_any_destruct( p_exc, nullptr );
+            // pOutExc constructed
+            return false;
+        }
+        else
+        {
+            bool succ = ::uno_type_assignData(
+                             pDest, pType, ret.pData, ret.pType, nullptr, nullptr, nullptr );
+            ::uno_any_destruct( &ret, nullptr );
+            OSL_ENSURE(
+                succ, "### conversion succeeded, but assignment failed!?" );
+            if (! succ)
+            {
+                // set runtime exception
+                constructRuntimeException(
+                    pOutExc,
+                    "type coercion failed: "
+                    "conversion succeeded, but assignment failed?!" );
+            }
+            return succ;
+        }
+    }
+}
+
+inline bool AdapterImpl::coerce_construct(
+    void * pDest, typelib_TypeDescriptionReference * pType, uno_Any * pSource,
+    uno_Any * pExc )
+{
+    if (typelib_TypeClass_ANY == pType->eTypeClass)
+    {
+        ::uno_type_copyData( pDest, pSource, pType, nullptr );
+        return true;
+    }
+    if (type_equals( pType, pSource->pType))
+    {
+        ::uno_type_copyData( pDest, pSource->pData, pType, nullptr );
+        return true;
+    }
+    ::uno_type_constructData( pDest, pType );
+    return coerce_assign( pDest, pType, pSource, pExc );
+}
+
+
+static void handleInvokExc( uno_Any * pDest, uno_Any * pSource )
+{
+    OUString const & name =
+        OUString::unacquired( &pSource->pType->pTypeName );
+
+    if ( name == "com.sun.star.reflection.InvocationTargetException" )
+    {
+        // unwrap invocation target exception
+        uno_Any * target_exc =
+            &static_cast< reflection::InvocationTargetException * >(
+                pSource->pData )->TargetException;
+        ::uno_type_any_construct(
+            pDest, target_exc->pData, target_exc->pType, nullptr );
+    }
+    else // all other exceptions are wrapped to RuntimeException
+    {
+        if (typelib_TypeClass_EXCEPTION == pSource->pType->eTypeClass)
+        {
+            constructRuntimeException(
+                pDest, static_cast<Exception const *>(pSource->pData)->Message );
+        }
+        else
+        {
+            constructRuntimeException(
+                pDest, "no exception has been thrown via invocation?!" );
+        }
+    }
+}
+
+void AdapterImpl::getValue(
+    const typelib_TypeDescription * pMemberType,
+    void * pReturn, uno_Any ** ppException )
+{
+    uno_Any aInvokRet;
+    void * pInvokArgs[1];
+    pInvokArgs[0] = const_cast<rtl_uString **>(
+        &reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberType)->pMemberName);
+    uno_Any aInvokExc;
+    uno_Any * pInvokExc = &aInvokExc;
+
+    // getValue()
+    (*m_pReceiver->pDispatcher)(
+        m_pReceiver, m_pFactory->m_pGetValueTD,
+        &aInvokRet, pInvokArgs, &pInvokExc );
+
+    if (pInvokExc) // getValue() call exception
+    {
+        handleInvokExc( *ppException, pInvokExc );
+        ::uno_any_destruct( pInvokExc, nullptr ); // cleanup
+    }
+    else // invocation call succeeded
+    {
+        if (coerce_construct(
+                pReturn,
+                reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(
+                 pMemberType)->pAttributeTypeRef,
+                &aInvokRet, *ppException ))
+        {
+            *ppException = nullptr; // no exceptions be thrown
+        }
+        ::uno_any_destruct( &aInvokRet, nullptr );
+    }
+}
+
+void AdapterImpl::setValue(
+    const typelib_TypeDescription * pMemberType,
+    void * pArgs[], uno_Any ** ppException )
+{
+    uno_Any aInvokVal;
+    ::uno_type_any_construct(
+        &aInvokVal, pArgs[0],
+        reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(
+         pMemberType)->pAttributeTypeRef, nullptr );
+
+    void * pInvokArgs[2];
+    pInvokArgs[0] = const_cast<rtl_uString **>(
+        &reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberType)->pMemberName);
+    pInvokArgs[1] = &aInvokVal;
+    uno_Any aInvokExc;
+    uno_Any * pInvokExc = &aInvokExc;
+
+    // setValue()
+    (*m_pReceiver->pDispatcher)(
+        m_pReceiver, m_pFactory->m_pSetValueTD, nullptr, pInvokArgs, &pInvokExc );
+
+    if (pInvokExc) // setValue() call exception
+    {
+        handleInvokExc( *ppException, pInvokExc );
+        ::uno_any_destruct( pInvokExc, nullptr ); // cleanup
+    }
+    else // invocation call succeeded
+    {
+        *ppException = nullptr; // no exceptions be thrown
+    }
+
+    ::uno_any_destruct( &aInvokVal, nullptr ); // cleanup
+}
+
+void AdapterImpl::invoke(
+    const typelib_TypeDescription * pMemberType,
+    void * pReturn, void * pArgs[], uno_Any ** ppException )
+{
+    sal_Int32 nParams =
+        reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberType)->nParams;
+    typelib_MethodParameter * pFormalParams =
+        reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberType)->pParams;
+
+    // in params
+    uno_Sequence * pInParamsSeq = nullptr;
+    ::uno_sequence_construct(
+        &pInParamsSeq, m_pFactory->m_pAnySeqTD, nullptr, nParams, nullptr );
+    uno_Any * pInAnys = reinterpret_cast<uno_Any *>(pInParamsSeq->elements);
+    sal_Int32 nOutParams = 0;
+    sal_Int32 nPos;
+    for ( nPos = nParams; nPos--; )
+    {
+        typelib_MethodParameter const & rParam = pFormalParams[nPos];
+        if (rParam.bIn) // is in/inout param
+        {
+            ::uno_type_any_assign(
+                &pInAnys[nPos], pArgs[nPos], rParam.pTypeRef, nullptr, nullptr );
+        }
+        // else: pure out is empty any
+
+        if (rParam.bOut)
+            ++nOutParams;
+    }
+
+    // out params, out indices
+    uno_Sequence * pOutIndices;
+    uno_Sequence * pOutParams;
+    // return value
+    uno_Any aInvokRet;
+    // perform call
+    void * pInvokArgs[4];
+    pInvokArgs[0] = const_cast<rtl_uString **>(
+        &reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberType)->pMemberName);
+    pInvokArgs[1] = &pInParamsSeq;
+    pInvokArgs[2] = &pOutIndices;
+    pInvokArgs[3] = &pOutParams;
+    uno_Any aInvokExc;
+    uno_Any * pInvokExc = &aInvokExc;
+
+    // invoke() call
+    (*m_pReceiver->pDispatcher)(
+        m_pReceiver, m_pFactory->m_pInvokMethodTD,
+        &aInvokRet, pInvokArgs, &pInvokExc );
+
+    if (pInvokExc)
+    {
+        handleInvokExc( *ppException, pInvokExc );
+        ::uno_any_destruct( pInvokExc, nullptr ); // cleanup
+    }
+    else // no invocation exception
+    {
+        // write changed out params
+        OSL_ENSURE(
+            pOutParams->nElements == nOutParams &&
+            pOutIndices->nElements == nOutParams,
+            "### out params lens differ!" );
+        if (pOutParams->nElements == nOutParams &&
+            pOutIndices->nElements == nOutParams)
+        {
+            sal_Int16 * pIndices = reinterpret_cast<sal_Int16 *>(pOutIndices->elements);
+            uno_Any * pOut       = reinterpret_cast<uno_Any *>(pOutParams->elements);
+            for ( nPos = 0; nPos < nOutParams; ++nPos )
+            {
+                sal_Int32 nIndex = pIndices[nPos];
+                OSL_ENSURE( nIndex < nParams, "### illegal index!" );
+                typelib_MethodParameter const & rParam = pFormalParams[nIndex];
+                bool succ;
+                if (rParam.bIn) // is in/inout param
+                {
+                    succ = coerce_assign(
+                        pArgs[nIndex], rParam.pTypeRef, &pOut[nPos],
+                        *ppException );
+                }
+                else // pure out
+                {
+                    succ = coerce_construct(
+                        pArgs[nIndex], rParam.pTypeRef, &pOut[nPos],
+                        *ppException );
+                }
+                if (! succ) // cleanup of out params
+                {
+                    for ( sal_Int32 n = 0; n <= nPos; ++n )
+                    {
+                        sal_Int32 nIndex2 = pIndices[n];
+                        OSL_ENSURE( nIndex2 < nParams, "### illegal index!" );
+                        typelib_MethodParameter const & rParam2 =
+                            pFormalParams[nIndex2];
+                        if (! rParam2.bIn) // is pure out param
+                        {
+                            ::uno_type_destructData(
+                                pArgs[nIndex2], rParam2.pTypeRef, nullptr );
+                        }
+                    }
+                }
+            }
+            if (nPos == pOutIndices->nElements)
+            {
+                // out param copy ok; write return value
+                if (coerce_construct(
+                        pReturn,
+                        reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(
+                         pMemberType)->pReturnTypeRef,
+                        &aInvokRet, *ppException ))
+                {
+                    *ppException = nullptr; // no exception
+                }
+            }
+        }
+        else
+        {
+            // set runtime exception
+            constructRuntimeException(
+                *ppException,
+                "out params lengths differ after invocation call!" );
+        }
+        // cleanup invok out params
+        ::uno_destructData( &pOutIndices, m_pFactory->m_pShortSeqTD, nullptr );
+        ::uno_destructData( &pOutParams, m_pFactory->m_pAnySeqTD, nullptr );
+        // cleanup invok return value
+        ::uno_any_destruct( &aInvokRet, nullptr );
+    }
+    // cleanup constructed in params
+    ::uno_destructData( &pInParamsSeq, m_pFactory->m_pAnySeqTD, nullptr );
+}
+
+extern "C"
+{
+
+static void adapter_acquire( uno_Interface * pUnoI )
+{
+    static_cast< InterfaceAdapterImpl * >( pUnoI )->m_pAdapter->acquire();
+}
+
+static void adapter_release( uno_Interface * pUnoI )
+{
+    static_cast< InterfaceAdapterImpl * >( pUnoI )->m_pAdapter->release();
+}
+
+static void adapter_dispatch(
+    uno_Interface * pUnoI, const typelib_TypeDescription * pMemberType,
+    void * pReturn, void * pArgs[], uno_Any ** ppException )
+{
+    // query to emulated interface
+    switch (reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberType)->nPosition)
+    {
+    case 0: // queryInterface()
+    {
+        AdapterImpl * that =
+            static_cast< InterfaceAdapterImpl * >( pUnoI )->m_pAdapter;
+        *ppException = nullptr; // no exc
+        typelib_TypeDescriptionReference * pDemanded =
+            *static_cast<typelib_TypeDescriptionReference **>(pArgs[0]);
+        // pInterfaces[0] is XInterface
+        for ( size_t nPos = 0; nPos < that->m_vInterfaces.size(); ++nPos )
+        {
+            typelib_InterfaceTypeDescription * pTD =
+                that->m_vInterfaces[nPos].m_pTypeDescr;
+            while (pTD)
+            {
+                if (type_equals( pTD->aBase.pWeakRef, pDemanded ))
+                {
+                    uno_Interface * pUnoI2 = &that->m_vInterfaces[nPos];
+                    ::uno_any_construct(
+                        static_cast<uno_Any *>(pReturn), &pUnoI2,
+                        &pTD->aBase, nullptr );
+                    return;
+                }
+                pTD = pTD->pBaseTypeDescription;
+            }
+        }
+        ::uno_any_construct( static_cast<uno_Any *>(pReturn), nullptr, nullptr, nullptr ); // clear()
+        break;
+    }
+    case 1: // acquire()
+        *ppException = nullptr; // no exc
+        adapter_acquire( pUnoI );
+        break;
+    case 2: // release()
+        *ppException = nullptr; // no exc
+        adapter_release( pUnoI );
+        break;
+
+    default:
+    {
+        AdapterImpl * that =
+            static_cast< InterfaceAdapterImpl * >( pUnoI )->m_pAdapter;
+        if (pMemberType->eTypeClass == typelib_TypeClass_INTERFACE_METHOD)
+        {
+            that->invoke( pMemberType, pReturn, pArgs, ppException );
+        }
+        else // attribute
+        {
+            if (pReturn)
+                that->getValue( pMemberType, pReturn, ppException );
+            else
+                that->setValue( pMemberType, pArgs, ppException );
+        }
+    }
+    }
+}
+}
+
+AdapterImpl::AdapterImpl(
+    void * key, Reference< script::XInvocation > const & xReceiver,
+    const Sequence< Type > & rTypes,
+    FactoryImpl * pFactory )
+        : m_nRef( 1 ),
+          m_pFactory( pFactory ),
+          m_key( key ),
+          m_vInterfaces( rTypes.getLength() )
+{
+    // init adapters
+    const Type * pTypes = rTypes.getConstArray();
+    for ( sal_Int32 nPos = rTypes.getLength(); nPos--; )
+    {
+        InterfaceAdapterImpl * pInterface = &m_vInterfaces[nPos];
+        pInterface->acquire = adapter_acquire;
+        pInterface->release = adapter_release;
+        pInterface->pDispatcher = adapter_dispatch;
+        pInterface->m_pAdapter = this;
+        pInterface->m_pTypeDescr = nullptr;
+        pTypes[nPos].getDescription(
+            reinterpret_cast<typelib_TypeDescription **>(&pInterface->m_pTypeDescr) );
+        OSL_ASSERT( pInterface->m_pTypeDescr );
+        if (! pInterface->m_pTypeDescr)
+        {
+            for ( sal_Int32 n = 0; n < nPos; ++n )
+            {
+                ::typelib_typedescription_release(
+                    &m_vInterfaces[ n ].m_pTypeDescr->aBase );
+            }
+            throw RuntimeException(
+                "cannot retrieve all interface type infos!" );
+        }
+    }
+
+    // map receiver
+    m_pReceiver = static_cast<uno_Interface *>(m_pFactory->m_aCpp2Uno.mapInterface(
+        xReceiver.get(), cppu::UnoType<decltype(xReceiver)>::get() ));
+    OSL_ASSERT( nullptr != m_pReceiver );
+    if (! m_pReceiver)
+    {
+        throw RuntimeException( "cannot map receiver!" );
+    }
+
+    m_pFactory->acquire();
+}
+
+
+FactoryImpl::FactoryImpl( Reference< XComponentContext > const & xContext )
+    : m_aUno2Cpp(Mapping( UNO_LB_UNO, CPPU_CURRENT_LANGUAGE_BINDING_NAME )),
+      m_aCpp2Uno(Mapping( CPPU_CURRENT_LANGUAGE_BINDING_NAME, UNO_LB_UNO)),
+      m_pInvokMethodTD( nullptr ),
+      m_pSetValueTD( nullptr ),
+      m_pGetValueTD( nullptr ),
+      m_pAnySeqTD( nullptr ),
+      m_pShortSeqTD( nullptr ),
+      m_pConvertToTD( nullptr )
+{
+    // C++/UNO bridge
+    OSL_ENSURE(
+        m_aUno2Cpp.is() && m_aCpp2Uno.is(), "### no uno / C++ mappings!" );
+
+    // type converter
+    Reference< script::XTypeConverter > xConverter(
+        xContext->getServiceManager()->createInstanceWithContext(
+            "com.sun.star.script.Converter",
+            xContext ),
+        UNO_QUERY_THROW );
+    m_pConverter = static_cast<uno_Interface *>(m_aCpp2Uno.mapInterface(
+        xConverter.get(), cppu::UnoType<decltype(xConverter)>::get() ));
+    OSL_ASSERT( nullptr != m_pConverter );
+
+    // some type info:
+    // sequence< any >
+    Type const & rAnySeqType = cppu::UnoType<Sequence< Any >>::get();
+    rAnySeqType.getDescription( &m_pAnySeqTD );
+    // sequence< short >
+    const Type & rShortSeqType =
+        cppu::UnoType<Sequence< sal_Int16 >>::get();
+    rShortSeqType.getDescription( &m_pShortSeqTD );
+    // script.XInvocation
+    typelib_TypeDescription * pTD = nullptr;
+    const Type & rInvType = cppu::UnoType<script::XInvocation>::get();
+    TYPELIB_DANGER_GET( &pTD, rInvType.getTypeLibType() );
+    typelib_InterfaceTypeDescription * pITD;
+    pITD = reinterpret_cast<typelib_InterfaceTypeDescription*>(pTD);
+    if( ! pITD->aBase.bComplete )
+        typelib_typedescription_complete( &pTD );
+    ::typelib_typedescriptionreference_getDescription(
+        &m_pInvokMethodTD, pITD->ppMembers[ 1 ] ); // invoke()
+    ::typelib_typedescriptionreference_getDescription(
+        &m_pSetValueTD, pITD->ppMembers[ 2 ] ); // setValue()
+    ::typelib_typedescriptionreference_getDescription(
+        &m_pGetValueTD, pITD->ppMembers[ 3 ] ); // getValue()
+    // script.XTypeConverter
+    const Type & rTCType =
+        cppu::UnoType<script::XTypeConverter>::get();
+    TYPELIB_DANGER_GET( &pTD, rTCType.getTypeLibType() );
+    pITD = reinterpret_cast<typelib_InterfaceTypeDescription*>(pTD);
+    ::typelib_typedescriptionreference_getDescription(
+        &m_pConvertToTD, pITD->ppMembers[ 0 ] ); // convertTo()
+    TYPELIB_DANGER_RELEASE( pTD );
+
+    if (!m_pInvokMethodTD || !m_pSetValueTD || !m_pGetValueTD ||
+        !m_pConvertToTD ||
+        !m_pAnySeqTD || !m_pShortSeqTD)
+    {
+        throw RuntimeException( "missing type descriptions!" );
+    }
+}
+
+FactoryImpl::~FactoryImpl()
+{
+    ::typelib_typedescription_release( m_pInvokMethodTD );
+    ::typelib_typedescription_release( m_pSetValueTD );
+    ::typelib_typedescription_release( m_pGetValueTD );
+    ::typelib_typedescription_release( m_pAnySeqTD );
+    ::typelib_typedescription_release( m_pShortSeqTD );
+    ::typelib_typedescription_release( m_pConvertToTD );
+
+    (*m_pConverter->release)( m_pConverter );
+
+#if OSL_DEBUG_LEVEL > 0
+    assert(m_receiver2adapters.empty() && "still adapters out there!?");
+#endif
+}
+
+
+static AdapterImpl * lookup_adapter(
+    t_ptr_set ** pp_adapter_set,
+    t_ptr_map & map, void * key, Sequence< Type > const & rTypes )
+{
+    t_ptr_set & adapters_set = map[ key ];
+    *pp_adapter_set = &adapters_set;
+    if (adapters_set.empty())
+        return nullptr; // shortcut
+    // find matching adapter
+    Type const * pTypes = rTypes.getConstArray();
+    sal_Int32 nTypes = rTypes.getLength();
+    for (const auto& rpAdapter : adapters_set)
+    {
+        AdapterImpl * that = static_cast< AdapterImpl * >( rpAdapter );
+        // iterate through all types if that is a matching adapter
+        sal_Int32 nPosTypes;
+        for ( nPosTypes = nTypes; nPosTypes--; )
+        {
+            Type const & rType = pTypes[ nPosTypes ];
+            // find in adapter's type list
+            sal_Int32 nPos;
+            for ( nPos = that->m_vInterfaces.size(); nPos--; )
+            {
+                if (::typelib_typedescriptionreference_isAssignableFrom(
+                        rType.getTypeLibType(),
+                        that->m_vInterfaces[ nPos ].m_pTypeDescr->aBase.pWeakRef ))
+                {
+                    // found
+                    break;
+                }
+            }
+            if (nPos < 0) // type not found => next adapter
+                break;
+        }
+        if (nPosTypes < 0) // all types found
+            return that;
+    }
+    return nullptr;
+}
+
+// XInvocationAdapterFactory2 impl
+
+Reference< XInterface > FactoryImpl::createAdapter(
+    const Reference< script::XInvocation > & xReceiver,
+    const Sequence< Type > & rTypes )
+{
+    Reference< XInterface > xRet;
+    if (xReceiver.is() && rTypes.hasElements())
+    {
+        t_ptr_set * adapter_set;
+        AdapterImpl * that;
+        Reference< XInterface > xKey( xReceiver, UNO_QUERY );
+        {
+        ClearableMutexGuard guard( m_mutex );
+        that = lookup_adapter(
+            &adapter_set, m_receiver2adapters, xKey.get(), rTypes );
+        if (nullptr == that) // no entry
+        {
+            guard.clear();
+            // create adapter; already acquired: m_nRef == 1
+            AdapterImpl * pNew =
+                new AdapterImpl( xKey.get(), xReceiver, rTypes, this );
+            // lookup again
+            ClearableMutexGuard guard2( m_mutex );
+            that = lookup_adapter(
+                &adapter_set, m_receiver2adapters, xKey.get(), rTypes );
+            if (nullptr == that) // again no entry
+            {
+                std::pair< t_ptr_set::const_iterator, bool > i(adapter_set->insert(pNew));
+                SAL_WARN_IF(
+                    !i.second, "stoc",
+                    "set already contains " << *(i.first) << " != " << pNew);
+                that = pNew;
+            }
+            else
+            {
+                that->acquire();
+                guard2.clear();
+                delete pNew; // has never been inserted
+            }
+        }
+        else // found adapter
+        {
+            that->acquire();
+        }
+        }
+        // map one interface to C++
+        uno_Interface * pUnoI = that->m_vInterfaces.data();
+        m_aUno2Cpp.mapInterface(
+            reinterpret_cast<void **>(&xRet), pUnoI, cppu::UnoType<decltype(xRet)>::get() );
+        that->release();
+        OSL_ASSERT( xRet.is() );
+        if (! xRet.is())
+        {
+            throw RuntimeException( "mapping UNO to C++ failed!" );
+        }
+    }
+    return xRet;
+}
+// XInvocationAdapterFactory impl
+
+Reference< XInterface > FactoryImpl::createAdapter(
+    const Reference< script::XInvocation > & xReceiver, const Type & rType )
+{
+    return createAdapter( xReceiver, Sequence< Type >( &rType, 1 ) );
+}
+
+// XServiceInfo
+
+OUString FactoryImpl::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.InvocationAdapterFactory";
+}
+
+sal_Bool FactoryImpl::supportsService( const OUString & rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > FactoryImpl::getSupportedServiceNames()
+{
+    return { "com.sun.star.script.InvocationAdapterFactory" };
+}
+
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_invocation_adapter_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new stoc_invadp::FactoryImpl(context));
+}
+
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/invocation_adapterfactory/invocadapt.component b/stoc/source/invocation_adapterfactory/invocadapt.component
new file mode 100644
index 0000000000..ec1723e22a
--- /dev/null
+++ b/stoc/source/invocation_adapterfactory/invocadapt.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.InvocationAdapterFactory"
+    constructor="stoc_invocation_adapter_get_implementation" single-instance="true">
+    <service name="com.sun.star.script.InvocationAdapterFactory"/>
+  </implementation>
+</component>
diff --git a/stoc/source/javaloader/javaloader.component b/stoc/source/javaloader/javaloader.component
new file mode 100644
index 0000000000..e8d1533bac
--- /dev/null
+++ b/stoc/source/javaloader/javaloader.component
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.JavaComponentLoader"
+    constructor="stoc_JavaComponentLoader_get_implementation"
+    single-instance="true">
+    <service name="com.sun.star.loader.Java"/>
+    <service name="com.sun.star.loader.Java2"/>
+  </implementation>
+</component>
diff --git a/stoc/source/javaloader/javaloader.cxx b/stoc/source/javaloader/javaloader.cxx
new file mode 100644
index 0000000000..e54ce9b2d7
--- /dev/null
+++ b/stoc/source/javaloader/javaloader.cxx
@@ -0,0 +1,574 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <rtl/process.h>
+#include <sal/log.hxx>
+
+#include <uno/environment.h>
+#include <uno/lbnames.h>
+#include <uno/mapping.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <cppuhelper/exc_hlp.hxx>
+
+#ifdef LINUX
+#undef minor
+#undef major
+#endif
+
+#include <com/sun/star/java/XJavaVM.hpp>
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-attributes"
+#endif
+#include <jni.h>
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <rtl/random.h>
+#include <rtl/ustrbuf.hxx>
+#include <osl/security.hxx>
+
+#include <cppuhelper/factory.hxx>
+
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <com/sun/star/bridge/UnoUrlResolver.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/loader/XImplementationLoader.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/util/theMacroExpander.hpp>
+
+#include <jvmaccess/unovirtualmachine.hxx>
+#include <jvmaccess/virtualmachine.hxx>
+
+// this one is header-only
+#include <comphelper/sequence.hxx>
+
+#include <mutex>
+#include <thread>
+#include <utility>
+
+namespace com::sun::star::registry { class XRegistryKey; }
+
+using namespace css::java;
+using namespace css::lang;
+using namespace css::loader;
+using namespace css::uno;
+using namespace css::registry;
+
+using namespace ::cppu;
+using namespace ::osl;
+
+namespace stoc_javaloader {
+
+namespace {
+
+// from desktop/source/deployment/misc/dp_misc.cxx
+OUString generateRandomPipeId()
+{
+    // compute some good pipe id:
+    static rtlRandomPool s_hPool = rtl_random_createPool();
+    if (s_hPool == nullptr)
+        throw RuntimeException( "cannot create random pool!?", nullptr );
+    sal_uInt8 bytes[ 32 ];
+    if (rtl_random_getBytes(
+            s_hPool, bytes, SAL_N_ELEMENTS(bytes) ) != rtl_Random_E_None) {
+        throw RuntimeException( "random pool error!?", nullptr );
+    }
+    OUStringBuffer buf;
+    for (unsigned char byte : bytes) {
+        buf.append( static_cast<sal_Int32>(byte), 0x10 );
+    }
+    return buf.makeStringAndClear();
+}
+
+// from desktop/source/deployment/registry/component/dp_component.cxx
+/** return a vector of bootstrap variables which have been provided
+    as command arguments.
+*/
+std::vector<OUString> getCmdBootstrapVariables()
+{
+    std::vector<OUString> ret;
+    sal_uInt32 count = osl_getCommandArgCount();
+    for (sal_uInt32 i = 0; i < count; i++)
+    {
+        OUString arg;
+        osl_getCommandArg(i, &arg.pData);
+        if (arg.startsWith("-env:"))
+            ret.push_back(arg);
+    }
+    return ret;
+}
+
+// from desktop/source/deployment/misc/dp_misc.cxx
+oslProcess raiseProcess(
+    OUString const & appURL, Sequence<OUString> const & args )
+{
+    ::osl::Security sec;
+    oslProcess hProcess = nullptr;
+    oslProcessError rc = osl_executeProcess(
+        appURL.pData,
+        reinterpret_cast<rtl_uString **>(
+            const_cast<OUString *>(args.getConstArray()) ),
+        args.getLength(),
+        osl_Process_DETACHED,
+        sec.getHandle(),
+        nullptr, // => current working dir
+        nullptr, 0, // => no env vars
+        &hProcess );
+
+    switch (rc) {
+    case osl_Process_E_None:
+        break;
+    case osl_Process_E_NotFound:
+        throw RuntimeException( "image not found!", nullptr );
+    case osl_Process_E_TimedOut:
+        throw RuntimeException( "timeout occurred!", nullptr );
+    case osl_Process_E_NoPermission:
+        throw RuntimeException( "permission denied!", nullptr );
+    case osl_Process_E_Unknown:
+        throw RuntimeException( "unknown error!", nullptr );
+    case osl_Process_E_InvalidError:
+    default:
+        throw RuntimeException( "unmapped error!", nullptr );
+    }
+
+    return hProcess;
+}
+
+// from desktop/source/deployment/registry/component/dp_component.cxx
+Reference<XComponentContext> raise_uno_process(
+    Reference<XComponentContext> const & xContext)
+{
+    OSL_ASSERT( xContext.is() );
+
+    OUString const url(css::util::theMacroExpander::get(xContext)->expandMacros("$URE_BIN_DIR/uno"));
+
+    const OUString connectStr = "uno:pipe,name=" + generateRandomPipeId() + ";urp;uno.ComponentContext";
+
+    // raise core UNO process to register/run a component,
+    // javavm service uses unorc next to executable to retrieve deployed
+    // jar typelibs
+
+    std::vector<OUString> args{
+#if OSL_DEBUG_LEVEL == 0
+        "--quiet",
+#endif
+        "--singleaccept",
+        "-u",
+        connectStr,
+        // don't inherit from unorc:
+        "-env:INIFILENAME=" };
+
+    //now add the bootstrap variables which were supplied on the command line
+    std::vector<OUString> bootvars = getCmdBootstrapVariables();
+    args.insert(args.end(), bootvars.begin(), bootvars.end());
+
+    oslProcess hProcess;
+    try {
+        hProcess = raiseProcess(url, comphelper::containerToSequence(args));
+    }
+    catch (...) {
+        OUStringBuffer sMsg = "error starting process: " + url;
+        for (const auto& arg : args) {
+            sMsg.append(" " + arg);
+        }
+        throw css::uno::RuntimeException(sMsg.makeStringAndClear());
+    }
+    try {
+        // from desktop/source/deployment/misc/dp_misc.cxx
+        Reference<css::bridge::XUnoUrlResolver> const xUnoUrlResolver(
+            css::bridge::UnoUrlResolver::create(xContext) );
+
+        for (int i = 0; i <= 40; ++i) // 20 seconds
+        {
+            try {
+                return Reference<XComponentContext>(
+                            xUnoUrlResolver->resolve(connectStr),
+                        UNO_QUERY_THROW );
+            }
+            catch (const css::connection::NoConnectException &) {
+                if (i < 40) {
+                    std::this_thread::sleep_for( std::chrono::milliseconds(500) );
+                }
+                else throw;
+            }
+        }
+        return nullptr; // warning C4715
+    }
+    catch (...) {
+        // try to terminate process:
+        if ( osl_terminateProcess( hProcess ) != osl_Process_E_None )
+        {
+            OSL_ASSERT( false );
+        }
+        throw;
+    }
+}
+
+class JavaComponentLoader
+    : protected ::cppu::BaseMutex
+    , public WeakComponentImplHelper<XImplementationLoader, XServiceInfo>
+{
+    /** local context */
+    css::uno::Reference<XComponentContext> m_xComponentContext;
+
+    /** possible remote process' context (use depends on configuration).
+        note: lifetime must be effectively "static" as this JavaComponentLoader
+        has no control over the lifetime of the services created via this
+        context; hence JavaComponentLoader is a single-instance service.
+     */
+    css::uno::Reference<XComponentContext> m_xRemoteComponentContext;
+
+    /** Do not use m_javaLoader directly. Instead use getJavaLoader.
+        This is either an in-process loader implemented in Java,
+        or a remote instance of JavaComponentLoader running in uno process,
+        acting as a proxy.
+     */
+    css::uno::Reference<XImplementationLoader> m_javaLoader;
+    /** The returned Reference contains a null pointer if the office is not configured
+        to run java.
+
+        @exception css::uno::RuntimeException
+        If the Java implementation of the loader could not be obtained, for reasons other
+        then that java was not configured the RuntimeException is thrown.
+     */
+    const css::uno::Reference<XImplementationLoader> & getJavaLoader(OUString &);
+
+
+public:
+    /// @throws RuntimeException
+    explicit JavaComponentLoader(css::uno::Reference<XComponentContext> xCtx);
+
+public:
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+
+    virtual void SAL_CALL disposing() override;
+
+    // XImplementationLoader
+    virtual css::uno::Reference<XInterface> SAL_CALL activate(
+        const OUString& implementationName, const OUString& implementationLoaderUrl,
+        const OUString& locationUrl, const css::uno::Reference<XRegistryKey>& xKey) override;
+    virtual sal_Bool SAL_CALL writeRegistryInfo(
+        const css::uno::Reference<XRegistryKey>& xKey,
+        const OUString& implementationLoaderUrl, const OUString& locationUrl) override;
+};
+
+}
+
+void JavaComponentLoader::disposing()
+{
+    // Explicitly drop all remote refs to shut down the uno.bin process
+    // and particularly the connection to it, so that it can't do more calls
+    // during late shutdown.
+    m_javaLoader.clear();
+    if (m_xRemoteComponentContext.is()) {
+        Reference<XComponent> const xComp(m_xRemoteComponentContext, UNO_QUERY);
+        assert(xComp.is());
+        xComp->dispose();
+        m_xRemoteComponentContext.clear();
+    }
+}
+
+const css::uno::Reference<XImplementationLoader> & JavaComponentLoader::getJavaLoader(OUString & rRemoteArg)
+{
+    static std::mutex ourMutex;
+    std::unique_lock aGuard(ourMutex);
+
+    if (m_javaLoader.is())
+        return m_javaLoader;
+
+    // check if the JVM should be instantiated out-of-process
+    if (rRemoteArg.isEmpty()) {
+        if (!m_xRemoteComponentContext.is()) {
+            Reference<css::container::XHierarchicalNameAccess> const xConf(
+                m_xComponentContext->getServiceManager()->createInstanceWithArgumentsAndContext(
+                    "com.sun.star.configuration.ReadOnlyAccess",
+                    { Any(OUString("*")) }, // locale isn't relevant here
+                    m_xComponentContext),
+                UNO_QUERY);
+
+            // configmgr is not part of URE, so may not exist!
+            if (xConf.is()) {
+                Any const value(xConf->getByHierarchicalName(
+                    "org.openoffice.Office.Java/VirtualMachine/RunUnoComponentsOutOfProcess"));
+                bool b;
+                if ((value >>= b) && b) {
+                    SAL_INFO("stoc.java", "JavaComponentLoader: starting uno process");
+                    m_xRemoteComponentContext = raise_uno_process(m_xComponentContext);
+                }
+            }
+        }
+        if (m_xRemoteComponentContext.is()) {
+            SAL_INFO("stoc.java", "JavaComponentLoader: creating remote instance to start JVM in uno process");
+            // create JVM service in remote uno.bin process
+            Reference<XImplementationLoader> const xLoader(
+                m_xRemoteComponentContext->getServiceManager()->createInstanceWithContext(
+                    "com.sun.star.loader.Java2", m_xRemoteComponentContext),
+                UNO_QUERY_THROW);
+            assert(xLoader.is());
+            m_javaLoader = xLoader;
+            rRemoteArg = "remote";
+            SAL_INFO("stoc.java", "JavaComponentLoader: remote proxy instance created: " << m_javaLoader.get());
+            return m_javaLoader;
+        }
+    }
+
+    uno_Environment * pJava_environment = nullptr;
+    uno_Environment * pUno_environment = nullptr;
+    typelib_InterfaceTypeDescription * pType_XImplementationLoader = nullptr;
+
+    try {
+        // get a java vm, where we can create a loader
+        css::uno::Reference<XJavaVM> javaVM_xJavaVM(
+            m_xComponentContext->getValueByName(
+                             ("/singletons/"
+                              "com.sun.star.java.theJavaVirtualMachine")),
+            UNO_QUERY_THROW);
+
+        // Use the special protocol of XJavaVM.getJavaVM:  If the passed in
+        // process ID has an extra 17th byte of value one, the returned any
+        // contains a pointer to a jvmaccess::UnoVirtualMachine, instead of the
+        // underlying JavaVM pointer:
+        Sequence<sal_Int8> processID(17);
+        rtl_getGlobalProcessId(reinterpret_cast<sal_uInt8 *>(processID.getArray()));
+        processID.getArray()[16] = 1;
+
+        // We get a non-refcounted pointer to a jvmaccess::UnoVirtualMachine
+        // from the XJavaVM service (the pointer is guaranteed to be valid
+        // as long as our reference to the XJavaVM service lasts), and
+        // convert the non-refcounted pointer into a refcounted one
+        // immediately:
+        static_assert(sizeof (sal_Int64)
+                        >= sizeof (jvmaccess::UnoVirtualMachine *), "must be at least the same size");
+        sal_Int64 nPointer = reinterpret_cast< sal_Int64 >(
+            static_cast< jvmaccess::UnoVirtualMachine * >(nullptr));
+        javaVM_xJavaVM->getJavaVM(processID) >>= nPointer;
+        rtl::Reference< jvmaccess::UnoVirtualMachine > xVirtualMachine(
+            reinterpret_cast< jvmaccess::UnoVirtualMachine * >(nPointer));
+        if (!xVirtualMachine.is())
+        {
+            //throw RuntimeException(
+            //   "javaloader error - JavaVirtualMachine service could not provide a VM",
+            //   css::uno::Reference<XInterface>());
+            // We must not throw a RuntimeException, because this might end the applications.
+            // It is ok if java components
+            // are not working because the office can be installed without Java support.
+            SAL_WARN("stoc", "getJavaVM returned null");
+            return m_javaLoader; // null-ref
+        }
+
+        try
+        {
+            jvmaccess::VirtualMachine::AttachGuard aGuard2(
+                xVirtualMachine->getVirtualMachine());
+            JNIEnv * pJNIEnv = aGuard2.getEnvironment();
+
+            // instantiate the java JavaLoader
+            jclass jcClassLoader = pJNIEnv->FindClass("java/lang/ClassLoader");
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - could not find class java/lang/ClassLoader");
+            jmethodID jmLoadClass = pJNIEnv->GetMethodID(
+                jcClassLoader, "loadClass",
+                "(Ljava/lang/String;)Ljava/lang/Class;");
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - could not find method java/lang/ClassLoader.loadClass");
+            jvalue arg;
+            arg.l = pJNIEnv->NewStringUTF(
+                "com.sun.star.comp.loader.JavaLoader");
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - could not create string");
+            jclass jcJavaLoader = static_cast< jclass >(
+                pJNIEnv->CallObjectMethodA(
+                    static_cast< jobject >(xVirtualMachine->getClassLoader()),
+                    jmLoadClass, &arg));
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - could not find class com/sun/star/comp/loader/JavaLoader");
+            jmethodID jmJavaLoader_init = pJNIEnv->GetMethodID(jcJavaLoader, "<init>", "()V");
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - instantiation of com.sun.star.comp.loader.JavaLoader failed");
+            jobject joJavaLoader = pJNIEnv->NewObject(jcJavaLoader, jmJavaLoader_init);
+            if(pJNIEnv->ExceptionOccurred())
+                throw RuntimeException(
+                    "javaloader error - instantiation of com.sun.star.comp.loader.JavaLoader failed");
+
+            // map the java JavaLoader to this environment
+            OUString sJava("java");
+            uno_getEnvironment(&pJava_environment, sJava.pData,
+                                xVirtualMachine.get());
+            if(!pJava_environment)
+                throw RuntimeException(
+                    "javaloader error - no Java environment available");
+
+            // why is there no convenient constructor?
+            OUString sCppu_current_lb_name(CPPU_CURRENT_LANGUAGE_BINDING_NAME);
+            uno_getEnvironment(&pUno_environment, sCppu_current_lb_name.pData, nullptr);
+            if(!pUno_environment)
+                throw RuntimeException(
+                    "javaloader error - no C++ environment available");
+
+            Mapping java_curr(pJava_environment, pUno_environment);
+            if(!java_curr.is())
+                throw RuntimeException(
+                    "javaloader error - no mapping from java to C++ ");
+
+            // release java environment
+            pJava_environment->release(pJava_environment);
+            pJava_environment = nullptr;
+
+            // release uno environment
+            pUno_environment->release(pUno_environment);
+            pUno_environment = nullptr;
+
+            cppu::UnoType<XImplementationLoader>::get().
+                getDescription(reinterpret_cast<typelib_TypeDescription **>(&pType_XImplementationLoader));
+            if(!pType_XImplementationLoader)
+                throw RuntimeException(
+                    "javaloader error - no type information for XImplementationLoader");
+
+            m_javaLoader.set(static_cast<XImplementationLoader *>(java_curr.mapInterface(joJavaLoader, pType_XImplementationLoader)));
+            pJNIEnv->DeleteLocalRef( joJavaLoader );
+            if(!m_javaLoader.is())
+                throw RuntimeException(
+                    "javaloader error - mapping of java XImplementationLoader to c++ failed");
+
+            typelib_typedescription_release(reinterpret_cast<typelib_TypeDescription *>(pType_XImplementationLoader));
+            pType_XImplementationLoader = nullptr;
+        }
+        catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+        {
+            css::uno::Any anyEx = cppu::getCaughtException();
+            throw css::lang::WrappedTargetRuntimeException(
+                "jvmaccess::VirtualMachine::AttachGuard::CreationException",
+                getXWeak(), anyEx );
+        }
+
+        // set the service manager at the javaloader
+        css::uno::Reference<XInitialization> javaLoader_XInitialization(m_javaLoader, UNO_QUERY_THROW);
+
+        Any any;
+        any <<= m_xComponentContext->getServiceManager();
+
+        javaLoader_XInitialization->initialize(Sequence<Any>(&any, 1));
+    }
+    catch(RuntimeException &) {
+        if(pJava_environment)
+            pJava_environment->release(pJava_environment);
+
+        if(pUno_environment)
+            pUno_environment->release(pUno_environment);
+
+        if(pType_XImplementationLoader)
+            typelib_typedescription_release(
+                reinterpret_cast<typelib_TypeDescription *>(pType_XImplementationLoader));
+        throw;
+    }
+    SAL_INFO("stoc", "javaloader.cxx: mapped javaloader - 0x" << m_javaLoader.get());
+    return m_javaLoader;
+}
+
+JavaComponentLoader::JavaComponentLoader(css::uno::Reference<XComponentContext> xCtx)
+    : WeakComponentImplHelper(m_aMutex)
+    , m_xComponentContext(std::move(xCtx))
+{
+
+}
+
+// XServiceInfo
+OUString SAL_CALL JavaComponentLoader::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.JavaComponentLoader";
+}
+
+sal_Bool SAL_CALL JavaComponentLoader::supportsService(const OUString & ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence<OUString> SAL_CALL JavaComponentLoader::getSupportedServiceNames()
+{
+    return { "com.sun.star.loader.Java", "com.sun.star.loader.Java2" };
+}
+
+
+// XImplementationLoader
+sal_Bool SAL_CALL JavaComponentLoader::writeRegistryInfo(
+    const css::uno::Reference<XRegistryKey> & xKey, const OUString & blabla,
+    const OUString & rLibName)
+{
+    OUString remoteArg(blabla);
+    const css::uno::Reference<XImplementationLoader> & loader = getJavaLoader(remoteArg);
+    if (!loader.is())
+        throw CannotRegisterImplementationException("Could not create Java implementation loader");
+    return loader->writeRegistryInfo(xKey, remoteArg, rLibName);
+}
+
+css::uno::Reference<XInterface> SAL_CALL JavaComponentLoader::activate(
+    const OUString & rImplName, const OUString & blabla, const OUString & rLibName,
+    const css::uno::Reference<XRegistryKey> & xKey)
+{
+    OUString remoteArg(blabla);
+    if (rImplName.isEmpty() && blabla.isEmpty() && rLibName.isEmpty())
+    {
+        // preload JVM was requested
+        (void)getJavaLoader(remoteArg);
+        return css::uno::Reference<XInterface>();
+    }
+
+    const css::uno::Reference<XImplementationLoader> & loader = getJavaLoader(remoteArg);
+    if (!loader.is())
+        throw CannotActivateFactoryException("Could not create Java implementation loader");
+    return loader->activate(rImplName, remoteArg, rLibName, xKey);
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_JavaComponentLoader_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
+{
+    try {
+        return cppu::acquire(new JavaComponentLoader(context));
+    }
+    catch(const RuntimeException & runtimeException) {
+        SAL_INFO(
+            "stoc",
+            "could not init javaloader due to " << runtimeException);
+        throw;
+    }
+}
+
+} //end namespace
+
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/interact.cxx b/stoc/source/javavm/interact.cxx
new file mode 100644
index 0000000000..49f223383a
--- /dev/null
+++ b/stoc/source/javavm/interact.cxx
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include "interact.hxx"
+
+#include <com/sun/star/task/XInteractionAbort.hpp>
+#include <com/sun/star/task/XInteractionRetry.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <mutex>
+#include <utility>
+
+namespace com::sun::star::task { class XInteractionContinuation; }
+
+using stoc_javavm::InteractionRequest;
+
+namespace {
+
+class AbortContinuation:
+    public cppu::WeakImplHelper<css::task::XInteractionAbort>
+{
+public:
+    AbortContinuation() {}
+    AbortContinuation(const AbortContinuation&) = delete;
+    AbortContinuation& operator=(const AbortContinuation&)= delete;
+
+    virtual void SAL_CALL select() override {}
+
+private:
+    virtual ~AbortContinuation() override {}
+};
+
+}
+
+class InteractionRequest::RetryContinuation:
+    public cppu::WeakImplHelper<css::task::XInteractionRetry>
+{
+public:
+    RetryContinuation(): m_bSelected(false) {}
+    RetryContinuation(const RetryContinuation&) = delete;
+    RetryContinuation& operator=(const RetryContinuation&) = delete;
+
+    virtual void SAL_CALL select() override;
+
+    bool isSelected() const;
+
+private:
+    virtual ~RetryContinuation() override {}
+
+    mutable std::mutex m_aMutex;
+    bool m_bSelected;
+};
+
+void SAL_CALL InteractionRequest::RetryContinuation::select()
+{
+    std::scoped_lock aGuard(m_aMutex);
+    m_bSelected = true;
+}
+
+bool InteractionRequest::RetryContinuation::isSelected() const
+{
+    std::scoped_lock aGuard(m_aMutex);
+    return m_bSelected;
+}
+
+InteractionRequest::InteractionRequest(css::uno::Any aRequest):
+    m_aRequest(std::move(aRequest))
+{
+    m_xRetryContinuation = new RetryContinuation;
+    m_aContinuations = { new AbortContinuation, m_xRetryContinuation };
+}
+
+css::uno::Any SAL_CALL InteractionRequest::getRequest()
+{
+    return m_aRequest;
+}
+
+css::uno::Sequence< css::uno::Reference< css::task::XInteractionContinuation > >
+SAL_CALL InteractionRequest::getContinuations()
+{
+    return m_aContinuations;
+}
+
+bool InteractionRequest::retry() const
+{
+    return m_xRetryContinuation.is() && m_xRetryContinuation->isSelected();
+}
+
+InteractionRequest::~InteractionRequest()
+{}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/interact.hxx b/stoc/source/javavm/interact.hxx
new file mode 100644
index 0000000000..42fa373a33
--- /dev/null
+++ b/stoc/source/javavm/interact.hxx
@@ -0,0 +1,67 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STOC_SOURCE_JAVAVM_INTERACT_HXX
+#define INCLUDED_STOC_SOURCE_JAVAVM_INTERACT_HXX
+
+#include <com/sun/star/task/XInteractionRequest.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <rtl/ref.hxx>
+
+namespace com::sun::star::task {
+    class XInteractionContinuation;
+}
+
+namespace stoc_javavm {
+
+class InteractionRequest:
+    public cppu::WeakImplHelper< css::task::XInteractionRequest >
+{
+public:
+    explicit InteractionRequest(css::uno::Any aRequest);
+
+    virtual css::uno::Any SAL_CALL getRequest() override;
+
+    virtual css::uno::Sequence< css::uno::Reference<
+        css::task::XInteractionContinuation > > SAL_CALL
+    getContinuations() override;
+
+    bool retry() const;
+
+private:
+    class RetryContinuation;
+
+    InteractionRequest(InteractionRequest const &) = delete;
+    void operator =(const InteractionRequest&) = delete;
+
+    virtual ~InteractionRequest() override;
+
+    css::uno::Any m_aRequest;
+    css::uno::Sequence< css::uno::Reference<
+        css::task::XInteractionContinuation > > m_aContinuations;
+    rtl::Reference< RetryContinuation > m_xRetryContinuation;
+};
+
+}
+
+#endif // INCLUDED_STOC_SOURCE_JAVAVM_INTERACT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/javavm.component b/stoc/source/javavm/javavm.component
new file mode 100644
index 0000000000..71379052b8
--- /dev/null
+++ b/stoc/source/javavm/javavm.component
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.JavaVirtualMachine"
+    constructor="stoc_JavaVM_get_implementation"
+    single-instance="true">
+    <service name="com.sun.star.java.JavaVirtualMachine"/>
+    <singleton name="com.sun.star.java.theJavaVirtualMachine"/>
+  </implementation>
+</component>
diff --git a/stoc/source/javavm/javavm.cxx b/stoc/source/javavm/javavm.cxx
new file mode 100644
index 0000000000..a1fedd1d2d
--- /dev/null
+++ b/stoc/source/javavm/javavm.cxx
@@ -0,0 +1,1416 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include "javavm.hxx"
+
+#include "interact.hxx"
+#include "jvmargs.hxx"
+
+#include <com/sun/star/beans/NamedValue.hpp>
+#include <com/sun/star/container/XContainer.hpp>
+#include <com/sun/star/java/JavaNotFoundException.hpp>
+#include <com/sun/star/java/InvalidJavaSettingsException.hpp>
+#include <com/sun/star/java/RestartRequiredException.hpp>
+#include <com/sun/star/java/JavaDisabledException.hpp>
+#include <com/sun/star/java/JavaVMCreationFailureException.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XMultiComponentFactory.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/registry/XRegistryKey.hpp>
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/task/XInteractionHandler.hpp>
+#include <com/sun/star/uno/Exception.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/uno/XCurrentContext.hpp>
+#include <com/sun/star/uno/XInterface.hpp>
+#include <com/sun/star/util/theMacroExpander.hpp>
+#include <comphelper/propertysequence.hxx>
+#include <comphelper/SetFlagContextHelper.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <jvmaccess/classpath.hxx>
+#include <jvmaccess/unovirtualmachine.hxx>
+#include <jvmaccess/virtualmachine.hxx>
+#include <rtl/process.h>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <sal/log.hxx>
+#include <uno/current_context.hxx>
+#include <jvmfwk/framework.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <jni.h>
+
+#include <stack>
+#include <string.h>
+#include <time.h>
+#include <memory>
+#include <utility>
+#include <vector>
+
+// Properties of the javavm can be put
+// as a comma separated list in this
+// environment variable
+#ifdef UNIX
+#define TIMEZONE "MEZ"
+#else
+#define TIMEZONE "MET"
+#endif
+
+#ifdef MACOSX
+#include <premac.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <postmac.h>
+#endif
+
+/* Within this implementation of the com.sun.star.java.JavaVirtualMachine
+ * service and com.sun.star.java.theJavaVirtualMachine singleton, the method
+ * com.sun.star.java.XJavaVM.getJavaVM relies on the following:
+ * 1  The string "$URE_INTERNAL_JAVA_DIR/" is expanded via the
+ * com.sun.star.util.theMacroExpander singleton into an internal (see the
+ * com.sun.star.uri.ExternalUriReferenceTranslator service), hierarchical URI
+ * reference relative to which the URE JAR files can be addressed.
+ * 2  The string "$URE_INTERNAL_JAVA_CLASSPATH" is either not expandable via the
+ * com.sun.star.util.theMacroExpander singleton
+ * (com.sun.star.lang.IllegalArgumentException), or is expanded via the
+ * com.sun.star.util.theMacroExpander singleton into a list of zero or more
+ * internal (see the com.sun.star.uri.ExternalUriReferenceTranslator service)
+ * URIs, where any space characters (U+0020) are ignored (and, in particular,
+ * separate adjacent URIs).
+ * If either of these requirements is not met, getJavaVM raises a
+ * com.sun.star.uno.RuntimeException.
+ */
+
+using stoc_javavm::JavaVirtualMachine;
+
+namespace {
+
+
+class NoJavaIniException: public css::uno::Exception
+{
+};
+
+typedef std::stack< jvmaccess::VirtualMachine::AttachGuard * > GuardStack;
+
+extern "C" {
+
+static void destroyAttachGuards(void * pData)
+{
+    GuardStack * pStack = static_cast< GuardStack * >(pData);
+    if (pStack != nullptr)
+    {
+        while (!pStack->empty())
+        {
+            delete pStack->top();
+            pStack->pop();
+        }
+        delete pStack;
+    }
+}
+
+}
+
+bool askForRetry(css::uno::Any const & rException)
+{
+    if (comphelper::IsContextFlagActive("DontEnableJava"))
+        return false;
+
+    css::uno::Reference< css::uno::XCurrentContext > xContext(
+        css::uno::getCurrentContext());
+    if (xContext.is())
+    {
+        css::uno::Reference< css::task::XInteractionHandler > xHandler;
+        xContext->getValueByName("java-vm.interaction-handler")
+            >>= xHandler;
+        if (xHandler.is())
+        {
+            rtl::Reference< stoc_javavm::InteractionRequest > xRequest(
+                new stoc_javavm::InteractionRequest(rException));
+            xHandler->handle(xRequest);
+            return xRequest->retry();
+        }
+    }
+    return false;
+}
+
+// Only gets the properties if the "Proxy Server" entry in the option dialog is
+// set to manual (i.e. not to none)
+/// @throws css::uno::Exception
+void getINetPropsFromConfig(stoc_javavm::JVM * pjvm,
+                            const css::uno::Reference<css::lang::XMultiComponentFactory> & xSMgr,
+                            const css::uno::Reference<css::uno::XComponentContext> &xCtx )
+{
+    css::uno::Reference<css::uno::XInterface> xConfRegistry = xSMgr->createInstanceWithContext(
+            "com.sun.star.configuration.ConfigurationRegistry",
+            xCtx );
+    if(!xConfRegistry.is()) throw css::uno::RuntimeException("javavm.cxx: couldn't get ConfigurationRegistry", nullptr);
+
+    css::uno::Reference<css::registry::XSimpleRegistry> xConfRegistry_simple(xConfRegistry, css::uno::UNO_QUERY_THROW);
+    xConfRegistry_simple->open("org.openoffice.Inet", true, false);
+    css::uno::Reference<css::registry::XRegistryKey> xRegistryRootKey = xConfRegistry_simple->getRootKey();
+
+//  if ooInetProxyType is not 0 then read the settings
+    css::uno::Reference<css::registry::XRegistryKey> proxyEnable= xRegistryRootKey->openKey("Settings/ooInetProxyType");
+    if( proxyEnable.is() && 0 != proxyEnable->getLongValue())
+    {
+        // read http proxy name
+        css::uno::Reference<css::registry::XRegistryKey> httpProxy_name = xRegistryRootKey->openKey("Settings/ooInetHTTPProxyName");
+        if(httpProxy_name.is() && !httpProxy_name->getStringValue().isEmpty()) {
+            OUString httpHost = "http.proxyHost=" + httpProxy_name->getStringValue();
+
+            // read http proxy port
+            css::uno::Reference<css::registry::XRegistryKey> httpProxy_port = xRegistryRootKey->openKey("Settings/ooInetHTTPProxyPort");
+            if(httpProxy_port.is() && httpProxy_port->getLongValue()) {
+                OUString httpPort = "http.proxyPort=" + OUString::number(httpProxy_port->getLongValue());
+
+                pjvm->pushProp(httpHost);
+                pjvm->pushProp(httpPort);
+            }
+        }
+
+        // read https proxy name
+        css::uno::Reference<css::registry::XRegistryKey> httpsProxy_name = xRegistryRootKey->openKey("Settings/ooInetHTTPSProxyName");
+        if(httpsProxy_name.is() && !httpsProxy_name->getStringValue().isEmpty()) {
+            OUString httpsHost = "https.proxyHost=" + httpsProxy_name->getStringValue();
+
+            // read https proxy port
+            css::uno::Reference<css::registry::XRegistryKey> httpsProxy_port = xRegistryRootKey->openKey("Settings/ooInetHTTPSProxyPort");
+            if(httpsProxy_port.is() && httpsProxy_port->getLongValue()) {
+                OUString httpsPort = "https.proxyPort=" + OUString::number(httpsProxy_port->getLongValue());
+
+                pjvm->pushProp(httpsHost);
+                pjvm->pushProp(httpsPort);
+            }
+        }
+
+        // read  nonProxyHosts
+        css::uno::Reference<css::registry::XRegistryKey> nonProxies_name = xRegistryRootKey->openKey("Settings/ooInetNoProxy");
+        if(nonProxies_name.is() && !nonProxies_name->getStringValue().isEmpty()) {
+            OUString value = nonProxies_name->getStringValue();
+            // replace the separator ";" by "|"
+            value = value.replace(';', '|');
+
+            OUString httpNonProxyHosts = "http.nonProxyHosts=" + value;
+
+            pjvm->pushProp(httpNonProxyHosts);
+        }
+    }
+    xConfRegistry_simple->close();
+}
+
+/// @throws css::uno::Exception
+void getDefaultLocaleFromConfig(
+    stoc_javavm::JVM * pjvm,
+    const css::uno::Reference<css::lang::XMultiComponentFactory> & xSMgr,
+    const css::uno::Reference<css::uno::XComponentContext> &xCtx )
+{
+    css::uno::Reference<css::uno::XInterface> xConfRegistry =
+        xSMgr->createInstanceWithContext( "com.sun.star.configuration.ConfigurationRegistry", xCtx );
+    if(!xConfRegistry.is())
+        throw css::uno::RuntimeException(
+            "javavm.cxx: couldn't get ConfigurationRegistry", nullptr);
+
+    css::uno::Reference<css::registry::XSimpleRegistry> xConfRegistry_simple(
+        xConfRegistry, css::uno::UNO_QUERY_THROW);
+    xConfRegistry_simple->open("org.openoffice.Setup", true, false);
+    css::uno::Reference<css::registry::XRegistryKey> xRegistryRootKey = xConfRegistry_simple->getRootKey();
+
+    // Since 1.7 Java knows DISPLAY and FORMAT locales, which match our UI and
+    // system locale. See
+    // http://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/file/569b1b644416/src/share/classes/java/util/Locale.java
+    // https://docs.oracle.com/javase/tutorial/i18n/locale/scope.html
+    // https://docs.oracle.com/javase/7/docs/api/java/util/Locale.html
+
+    // Read UI language/locale.
+    css::uno::Reference<css::registry::XRegistryKey> xUILocale = xRegistryRootKey->openKey("L10N/ooLocale");
+    if(xUILocale.is() && !xUILocale->getStringValue().isEmpty()) {
+        LanguageTag aLanguageTag( xUILocale->getStringValue());
+        OUString language;
+        OUString script;
+        OUString country;
+        // Java knows nothing but plain old ISO codes, unless Locale.Builder or
+        // Locale.forLanguageTag() are used, or non-standardized variant field
+        // content which we ignore.
+        aLanguageTag.getIsoLanguageScriptCountry( language, script, country);
+
+        if(!language.isEmpty()) {
+            OUString prop = "user.language=" + language;
+            pjvm->pushProp(prop);
+        }
+
+        // As of Java 7 also script is supported.
+        if(!script.isEmpty()) {
+            OUString prop = "user.script=" + script;
+            pjvm->pushProp(prop);
+        }
+
+        if(!country.isEmpty()) {
+            OUString prop = "user.country=" + country;
+            pjvm->pushProp(prop);
+        }
+
+        // Java 7 DISPLAY category is our UI language/locale.
+        if(!language.isEmpty()) {
+            OUString prop = "user.language.display=" + language;
+            pjvm->pushProp(prop);
+        }
+
+        if(!script.isEmpty()) {
+            OUString prop = "user.script.display=" + script;
+            pjvm->pushProp(prop);
+        }
+
+        if(!country.isEmpty()) {
+            OUString prop = "user.country.display=" + country;
+            pjvm->pushProp(prop);
+        }
+    }
+
+    // Read system locale.
+    css::uno::Reference<css::registry::XRegistryKey> xLocale = xRegistryRootKey->openKey("L10N/ooSetupSystemLocale");
+    if(xLocale.is() && !xLocale->getStringValue().isEmpty()) {
+        LanguageTag aLanguageTag( xLocale->getStringValue());
+        OUString language;
+        OUString script;
+        OUString country;
+        // Java knows nothing but plain old ISO codes, unless Locale.Builder or
+        // Locale.forLanguageTag() are used, or non-standardized variant field
+        // content which we ignore.
+        aLanguageTag.getIsoLanguageScriptCountry( language, script, country);
+
+        // Java 7 FORMAT category is our system locale.
+        if(!language.isEmpty()) {
+            OUString prop = "user.language.format=" + language;
+            pjvm->pushProp(prop);
+        }
+
+        if(!script.isEmpty()) {
+            OUString prop = "user.script.format=" + script;
+            pjvm->pushProp(prop);
+        }
+
+        if(!country.isEmpty()) {
+            OUString prop = "user.country.format=" + country;
+            pjvm->pushProp(prop);
+        }
+    }
+
+    xConfRegistry_simple->close();
+}
+
+/// @throws css::uno::Exception
+void getJavaPropsFromSafetySettings(
+    stoc_javavm::JVM * pjvm,
+    const css::uno::Reference<css::lang::XMultiComponentFactory> & xSMgr,
+    const css::uno::Reference<css::uno::XComponentContext> &xCtx)
+{
+    css::uno::Reference<css::uno::XInterface> xConfRegistry =
+        xSMgr->createInstanceWithContext(
+            "com.sun.star.configuration.ConfigurationRegistry",
+            xCtx);
+    if(!xConfRegistry.is())
+        throw css::uno::RuntimeException(
+            "javavm.cxx: couldn't get ConfigurationRegistry", nullptr);
+
+    css::uno::Reference<css::registry::XSimpleRegistry> xConfRegistry_simple(
+        xConfRegistry, css::uno::UNO_QUERY_THROW);
+    xConfRegistry_simple->open(
+        "org.openoffice.Office.Java",
+        true, false);
+    css::uno::Reference<css::registry::XRegistryKey> xRegistryRootKey =
+        xConfRegistry_simple->getRootKey();
+
+    if (xRegistryRootKey.is())
+    {
+        css::uno::Reference<css::registry::XRegistryKey> key_NetAccess= xRegistryRootKey->openKey("VirtualMachine/NetAccess");
+        if (key_NetAccess.is())
+        {
+            sal_Int32 val= key_NetAccess->getLongValue();
+            OUString sVal;
+            switch( val)
+            {
+            case 0: sVal = "host";
+                break;
+            case 1: sVal = "unrestricted";
+                break;
+            case 3: sVal = "none";
+                break;
+            }
+            OUString sProperty = "appletviewer.security.mode=" + sVal;
+            pjvm->pushProp(sProperty);
+        }
+        css::uno::Reference<css::registry::XRegistryKey> key_CheckSecurity= xRegistryRootKey->openKey(
+            "VirtualMachine/Security");
+        if( key_CheckSecurity.is())
+        {
+            bool val = static_cast<bool>(key_CheckSecurity->getLongValue());
+            OUString sProperty("stardiv.security.disableSecurity=");
+            if( val)
+                sProperty += "false";
+            else
+                sProperty += "true";
+            pjvm->pushProp( sProperty);
+        }
+    }
+    xConfRegistry_simple->close();
+}
+
+void setTimeZone(stoc_javavm::JVM * pjvm) noexcept {
+    /* A Bug in the Java function
+    ** struct Hjava_util_Properties * java_lang_System_initProperties(
+    ** struct Hjava_lang_System *this,
+    ** struct Hjava_util_Properties *props);
+    ** This function doesn't detect MEZ, MET or "W. Europe Standard Time"
+    */
+    struct tm *tmData;
+    time_t clock = time(nullptr);
+    tzset();
+    tmData = localtime(&clock);
+#ifdef MACOSX
+    char * p = tmData->tm_zone;
+#elif defined(_MSC_VER)
+    char * p = _tzname[0];
+    (void)tmData;
+#else
+    char * p = tzname[0];
+    (void)tmData;
+#endif
+
+    if (!strcmp(TIMEZONE, p))
+        pjvm->pushProp("user.timezone=ECT");
+}
+
+/// @throws css::uno::Exception
+void initVMConfiguration(
+    stoc_javavm::JVM * pjvm,
+    const css::uno::Reference<css::lang::XMultiComponentFactory> & xSMgr,
+    const css::uno::Reference<css::uno::XComponentContext > &xCtx)
+{
+    stoc_javavm::JVM jvm;
+    try {
+        getINetPropsFromConfig(&jvm, xSMgr, xCtx);
+    }
+    catch(const css::uno::Exception & exception) {
+        SAL_INFO("stoc", "can not get INETProps because of " << exception);
+    }
+
+    try {
+        getDefaultLocaleFromConfig(&jvm, xSMgr,xCtx);
+    }
+    catch(const css::uno::Exception & exception) {
+        SAL_INFO("stoc", "can not get locale because of " << exception);
+    }
+
+    try
+    {
+        getJavaPropsFromSafetySettings(&jvm, xSMgr, xCtx);
+    }
+    catch(const css::uno::Exception & exception) {
+        SAL_INFO("stoc", "couldn't get safety settings because of " << exception);
+    }
+
+    *pjvm= jvm;
+
+    // rhbz#1285356, native look will be gtk2, which crashes
+    // when gtk3 is already loaded. Until there is a solution
+    // java-side force look and feel to something that doesn't
+    // crash when we are using gtk3
+    if (getenv("STOC_FORCE_SYSTEM_LAF"))
+        pjvm->pushProp("swing.systemlaf=javax.swing.plaf.metal.MetalLookAndFeel");
+
+    setTimeZone(pjvm);
+}
+
+class DetachCurrentThread {
+public:
+    explicit DetachCurrentThread(JavaVM * jvm): m_jvm(jvm) {}
+
+    ~DetachCurrentThread() {
+#ifdef MACOSX
+        // tdf#101376 don't detach thread if it is the main thread on macOS
+        // On macOS, many AWT classes do their work on the main thread
+        // deep in native methods in the java.awt.* classes. The problem
+        // is that Oracle's and OpenJDK's JVMs don't bracket their
+        // "perform on main thread" native calls with "attach/detach
+        // current thread" calls to the JVM.
+        if (CFRunLoopGetCurrent() != CFRunLoopGetMain())
+#endif
+            if (m_jvm->DetachCurrentThread() != 0) {
+                OSL_ASSERT(false);
+            }
+    }
+
+    DetachCurrentThread(const DetachCurrentThread&) = delete;
+    DetachCurrentThread& operator=(const DetachCurrentThread&) = delete;
+
+private:
+    JavaVM * m_jvm;
+};
+
+}
+
+JavaVirtualMachine::JavaVirtualMachine(
+    css::uno::Reference< css::uno::XComponentContext > xContext):
+    WeakComponentImplHelper(m_aMutex),
+    m_xContext(std::move(xContext)),
+    m_bDisposed(false),
+    m_pJavaVm(nullptr),
+    m_aAttachGuards(destroyAttachGuards) // TODO check for validity
+{}
+
+void SAL_CALL
+JavaVirtualMachine::initialize(css::uno::Sequence< css::uno::Any > const &
+                                   rArguments)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            "", getXWeak());
+    if (m_xUnoVirtualMachine.is())
+        throw css::uno::RuntimeException(
+            "bad call to initialize",
+            getXWeak());
+    css::beans::NamedValue val;
+    if (rArguments.getLength() == 1 && (rArguments[0] >>= val) && val.Name == "UnoVirtualMachine" )
+    {
+        OSL_ENSURE(
+            sizeof (sal_Int64) >= sizeof (jvmaccess::UnoVirtualMachine *),
+            "Pointer cannot be represented as sal_Int64");
+        sal_Int64 nPointer = reinterpret_cast< sal_Int64 >(
+            static_cast< jvmaccess::UnoVirtualMachine * >(nullptr));
+        val.Value >>= nPointer;
+        m_xUnoVirtualMachine =
+            reinterpret_cast< jvmaccess::UnoVirtualMachine * >(nPointer);
+    } else {
+        OSL_ENSURE(
+            sizeof (sal_Int64) >= sizeof (jvmaccess::VirtualMachine *),
+            "Pointer cannot be represented as sal_Int64");
+        sal_Int64 nPointer = reinterpret_cast< sal_Int64 >(
+            static_cast< jvmaccess::VirtualMachine * >(nullptr));
+        if (rArguments.getLength() == 1)
+            rArguments[0] >>= nPointer;
+        rtl::Reference< jvmaccess::VirtualMachine > vm(
+            reinterpret_cast< jvmaccess::VirtualMachine * >(nPointer));
+        if (vm.is()) {
+            try {
+                m_xUnoVirtualMachine = new jvmaccess::UnoVirtualMachine(vm, nullptr);
+            } catch (jvmaccess::UnoVirtualMachine::CreationException &) {
+                css::uno::Any anyEx = cppu::getCaughtException();
+                throw css::lang::WrappedTargetRuntimeException(
+                    "jvmaccess::UnoVirtualMachine::CreationException",
+                    getXWeak(), anyEx );
+            }
+        }
+    }
+    if (!m_xUnoVirtualMachine.is()) {
+        throw css::lang::IllegalArgumentException(
+            "sequence of exactly one any containing either (a) a"
+            " com.sun.star.beans.NamedValue with Name"
+            " \"UnoVirtualMachine\" and Value a hyper representing a"
+            " non-null pointer to a jvmaccess:UnoVirtualMachine, or (b)"
+            " a hyper representing a non-null pointer to a"
+            " jvmaccess::VirtualMachine required",
+            getXWeak(), 0);
+    }
+    m_xVirtualMachine = m_xUnoVirtualMachine->getVirtualMachine();
+}
+
+OUString SAL_CALL JavaVirtualMachine::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.JavaVirtualMachine";
+}
+
+sal_Bool SAL_CALL
+JavaVirtualMachine::supportsService(OUString const & rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+css::uno::Sequence< OUString > SAL_CALL
+JavaVirtualMachine::getSupportedServiceNames()
+{
+    return { "com.sun.star.java.JavaVirtualMachine" };
+}
+
+css::uno::Any SAL_CALL
+JavaVirtualMachine::getJavaVM(css::uno::Sequence< sal_Int8 > const & rProcessId)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            "", getXWeak());
+    css::uno::Sequence< sal_Int8 > aId(16);
+    rtl_getGlobalProcessId(reinterpret_cast< sal_uInt8 * >(aId.getArray()));
+    enum ReturnType {
+        RETURN_JAVAVM, RETURN_VIRTUALMACHINE, RETURN_UNOVIRTUALMACHINE };
+    ReturnType returnType =
+        rProcessId.getLength() == 17 && rProcessId[16] == 0
+        ? RETURN_VIRTUALMACHINE
+        : rProcessId.getLength() == 17 && rProcessId[16] == 1
+        ? RETURN_UNOVIRTUALMACHINE
+        : RETURN_JAVAVM;
+    css::uno::Sequence< sal_Int8 > aProcessId(rProcessId);
+    if (returnType != RETURN_JAVAVM)
+        aProcessId.realloc(16);
+    if (aId != aProcessId)
+        return css::uno::Any();
+
+    std::unique_ptr<JavaInfo> info;
+    while (!m_xVirtualMachine.is()) // retry until successful
+    {
+        stoc_javavm::JVM aJvm;
+        initVMConfiguration(&aJvm, m_xContext->getServiceManager(),
+                            m_xContext);
+        const std::vector<OUString> & props = aJvm.getProperties();
+        std::vector<OUString> options;
+        options.reserve(props.size());
+        for (auto const& i : props)
+        {
+            options.push_back(i.startsWith("-") ? i : "-D" + i);
+        }
+
+        JNIEnv * pMainThreadEnv = nullptr;
+        javaFrameworkError errcode;
+
+        if (getenv("STOC_FORCE_NO_JRE"))
+            errcode = JFW_E_NO_SELECT;
+        else
+            errcode = jfw_startVM(info.get(), options, & m_pJavaVm,
+                                  & pMainThreadEnv);
+
+        bool bStarted = false;
+        switch (errcode)
+        {
+        case JFW_E_NONE: bStarted = true; break;
+        case JFW_E_NO_SELECT:
+        {
+            // No Java configured. We silently run the Java configuration
+            info.reset();
+            javaFrameworkError errFind;
+            if (getenv("STOC_FORCE_NO_JRE"))
+                errFind = JFW_E_NO_JAVA_FOUND;
+            else
+                errFind = jfw_findAndSelectJRE(&info);
+            if (errFind == JFW_E_NONE)
+            {
+                continue;
+            }
+            else if (errFind == JFW_E_NO_JAVA_FOUND)
+            {
+
+                //Warning MessageBox:
+                //%PRODUCTNAME requires a Java runtime environment (JRE) to perform this task.
+                //Please install a JRE and restart %PRODUCTNAME.
+                css::java::JavaNotFoundException exc(
+                    "JavaVirtualMachine::getJavaVM failed because"
+                    " No suitable JRE found!",
+                    getXWeak());
+                askForRetry(css::uno::Any(exc));
+                return css::uno::Any();
+            }
+            else
+            {
+                //An unexpected error occurred
+                throw css::uno::RuntimeException(
+                    "[JavaVirtualMachine]:An unexpected error occurred"
+                    " while searching for a Java, " + OUString::number(errFind), nullptr);
+            }
+        }
+        case JFW_E_INVALID_SETTINGS:
+        {
+            //Warning MessageBox:
+            // The %PRODUCTNAME configuration has been changed. Under Tools
+            // - Options - %PRODUCTNAME - Java, select the Java runtime environment
+            // you want to have used by %PRODUCTNAME.
+            css::java::InvalidJavaSettingsException exc(
+                "JavaVirtualMachine::getJavaVM failed because"
+                " Java settings have changed!",
+                getXWeak());
+            askForRetry(css::uno::Any(exc));
+            return css::uno::Any();
+        }
+        case JFW_E_JAVA_DISABLED:
+        {
+            //QueryBox:
+            //%PRODUCTNAME requires a Java runtime environment (JRE) to perform
+            //this task. However, use of a JRE has been disabled. Do you want to
+            //enable the use of a JRE now?
+            css::java::JavaDisabledException exc(
+                "JavaVirtualMachine::getJavaVM failed because Java is disabled!",
+                getXWeak());
+            if( ! askForRetry(css::uno::Any(exc)))
+                return css::uno::Any();
+            continue;
+        }
+        case JFW_E_VM_CREATION_FAILED:
+        {
+            //If the creation failed because the JRE has been uninstalled then
+            //we search another one. As long as there is a javaldx, we should
+            //never come into this situation. javaldx checks always if the JRE
+            //still exist.
+            std::unique_ptr<JavaInfo> aJavaInfo;
+            if (JFW_E_NONE == jfw_getSelectedJRE(&aJavaInfo))
+            {
+                bool bExist = false;
+                if (JFW_E_NONE == jfw_existJRE(aJavaInfo.get(), &bExist))
+                {
+                    if (!bExist
+                        && ! (aJavaInfo->nRequirements & JFW_REQUIRE_NEEDRESTART))
+                    {
+                        info.reset();
+                        javaFrameworkError errFind = jfw_findAndSelectJRE(
+                            &info);
+                        if (errFind == JFW_E_NONE)
+                        {
+                            continue;
+                        }
+                    }
+                }
+            }
+
+            //Error: %PRODUCTNAME requires a Java
+            //runtime environment (JRE) to perform this task. The selected JRE
+            //is defective. Please select another version or install a new JRE
+            //and select it under Tools - Options - %PRODUCTNAME - Java.
+            css::java::JavaVMCreationFailureException exc(
+                "JavaVirtualMachine::getJavaVM failed because Java is defective!",
+                getXWeak(), 0);
+            askForRetry(css::uno::Any(exc));
+            return css::uno::Any();
+        }
+        case JFW_E_RUNNING_JVM:
+        {
+            //This service should make sure that we do not start java twice.
+            OSL_ASSERT(false);
+            break;
+        }
+        case JFW_E_NEED_RESTART:
+        {
+            //Error:
+            //For the selected Java runtime environment to work properly,
+            //%PRODUCTNAME must be restarted. Please restart %PRODUCTNAME now.
+            css::java::RestartRequiredException exc(
+                "JavaVirtualMachine::getJavaVM failed because "
+                "Office must be restarted before Java can be used!",
+                getXWeak());
+            askForRetry(css::uno::Any(exc));
+            return css::uno::Any();
+        }
+        default:
+            //RuntimeException: error is somewhere in the java framework.
+            //An unexpected error occurred
+            throw css::uno::RuntimeException(
+                "[JavaVirtualMachine]:An unexpected error occurred"
+                " while starting Java!", nullptr);
+        }
+
+        if (bStarted)
+        {
+            {
+                DetachCurrentThread detach(m_pJavaVm);
+                    // necessary to make debugging work; this thread will be
+                    // suspended when the destructor of detach returns
+                m_xVirtualMachine = new jvmaccess::VirtualMachine(
+                    m_pJavaVm, JNI_VERSION_1_2, true, pMainThreadEnv);
+                setUpUnoVirtualMachine(pMainThreadEnv);
+            }
+            // Listen for changes in the configuration (e.g. proxy settings):
+            // TODO this is done too late; changes to the configuration done
+            // after the above call to initVMConfiguration are lost
+            registerConfigChangesListener();
+
+            break;
+        }
+    }
+    if (!m_xUnoVirtualMachine.is()) {
+        try {
+            jvmaccess::VirtualMachine::AttachGuard guard(m_xVirtualMachine);
+            setUpUnoVirtualMachine(guard.getEnvironment());
+        } catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &) {
+            css::uno::Any anyEx = cppu::getCaughtException();
+            throw css::lang::WrappedTargetRuntimeException(
+                "jvmaccess::VirtualMachine::AttachGuard::CreationException occurred",
+                getXWeak(), anyEx );
+        }
+    }
+    switch (returnType) {
+    default: // RETURN_JAVAVM
+        if (m_pJavaVm == nullptr) {
+            throw css::uno::RuntimeException(
+                "JavaVirtualMachine service was initialized in a way"
+                " that the requested JavaVM pointer is not available",
+                getXWeak());
+        }
+        return css::uno::Any(reinterpret_cast< sal_IntPtr >(m_pJavaVm));
+    case RETURN_VIRTUALMACHINE:
+        OSL_ASSERT(sizeof (sal_Int64) >= sizeof (jvmaccess::VirtualMachine *));
+        return css::uno::Any(
+            reinterpret_cast< sal_Int64 >(
+                m_xUnoVirtualMachine->getVirtualMachine().get()));
+    case RETURN_UNOVIRTUALMACHINE:
+        OSL_ASSERT(sizeof (sal_Int64) >= sizeof (jvmaccess::VirtualMachine *));
+        return css::uno::Any(
+            reinterpret_cast< sal_Int64 >(m_xUnoVirtualMachine.get()));
+    }
+}
+
+sal_Bool SAL_CALL JavaVirtualMachine::isVMStarted()
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            OUString(), getXWeak());
+    return m_xUnoVirtualMachine.is();
+}
+
+sal_Bool SAL_CALL JavaVirtualMachine::isVMEnabled()
+{
+    {
+        osl::MutexGuard aGuard(m_aMutex);
+        if (m_bDisposed)
+            throw css::lang::DisposedException(
+                OUString(), getXWeak());
+    }
+//    stoc_javavm::JVM aJvm;
+//    initVMConfiguration(&aJvm, m_xContext->getServiceManager(), m_xContext);
+//    return aJvm.isEnabled();
+    //ToDo
+    bool bEnabled = false;
+    if (jfw_getEnabled( & bEnabled) != JFW_E_NONE)
+        throw css::uno::RuntimeException();
+    return bEnabled;
+}
+
+sal_Bool SAL_CALL JavaVirtualMachine::isThreadAttached()
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            OUString(), getXWeak());
+    // TODO isThreadAttached only returns true if the thread was attached via
+    // registerThread:
+    GuardStack * pStack
+        = static_cast< GuardStack * >(m_aAttachGuards.getData());
+    return pStack != nullptr && !pStack->empty();
+}
+
+void SAL_CALL JavaVirtualMachine::registerThread()
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            "", getXWeak());
+    if (!m_xUnoVirtualMachine.is())
+        throw css::uno::RuntimeException(
+            "JavaVirtualMachine::registerThread: null VirtualMachine",
+            getXWeak());
+    GuardStack * pStack
+        = static_cast< GuardStack * >(m_aAttachGuards.getData());
+    if (pStack == nullptr)
+    {
+        pStack = new GuardStack;
+        m_aAttachGuards.setData(pStack);
+    }
+    try
+    {
+        pStack->push(
+            new jvmaccess::VirtualMachine::AttachGuard(
+                m_xUnoVirtualMachine->getVirtualMachine()));
+    }
+    catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw css::lang::WrappedTargetRuntimeException(
+            "JavaVirtualMachine::registerThread: jvmaccess::"
+            "VirtualMachine::AttachGuard::CreationException",
+            getXWeak(), anyEx );
+    }
+}
+
+void SAL_CALL JavaVirtualMachine::revokeThread()
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (m_bDisposed)
+        throw css::lang::DisposedException(
+            "", getXWeak());
+    if (!m_xUnoVirtualMachine.is())
+        throw css::uno::RuntimeException(
+            "JavaVirtualMachine::revokeThread: null VirtualMachine",
+            getXWeak());
+    GuardStack * pStack
+        = static_cast< GuardStack * >(m_aAttachGuards.getData());
+    if (pStack == nullptr || pStack->empty())
+        throw css::uno::RuntimeException(
+            "JavaVirtualMachine::revokeThread: no matching registerThread",
+            getXWeak());
+    delete pStack->top();
+    pStack->pop();
+}
+
+void SAL_CALL
+JavaVirtualMachine::disposing(css::lang::EventObject const & rSource)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    if (rSource.Source == m_xInetConfiguration)
+        m_xInetConfiguration.clear();
+    if (rSource.Source == m_xJavaConfiguration)
+        m_xJavaConfiguration.clear();
+}
+
+void SAL_CALL JavaVirtualMachine::elementInserted(
+    css::container::ContainerEvent const &)
+{}
+
+void SAL_CALL JavaVirtualMachine::elementRemoved(
+    css::container::ContainerEvent const &)
+{}
+
+// If a user changes the setting, for example for proxy settings, then this
+// function will be called from the configuration manager.  Even if the .xml
+// file does not contain an entry yet and that entry has to be inserted, this
+// function will be called.  We call java.lang.System.setProperty for the new
+// values.
+void SAL_CALL JavaVirtualMachine::elementReplaced(
+    css::container::ContainerEvent const & rEvent)
+{
+    // TODO Using the new value stored in rEvent is wrong here.  If two threads
+    // receive different elementReplaced calls in quick succession, it is
+    // unspecified which changes the JVM's system properties last.  A correct
+    // solution must atomically (i.e., protected by a mutex) read the latest
+    // value from the configuration and set it as a system property at the JVM.
+
+    OUString aAccessor;
+    rEvent.Accessor >>= aAccessor;
+    OUString aPropertyName;
+    OUString aPropertyValue;
+    bool bSecurityChanged = false;
+    if ( aAccessor == "ooInetProxyType" )
+    {
+        // Proxy none, manually
+        sal_Int32 value = 0;
+        rEvent.Element >>= value;
+        setINetSettingsInVM(value != 0);
+        return;
+    }
+    else if ( aAccessor == "ooInetHTTPProxyName" )
+    {
+        aPropertyName = "http.proxyHost";
+        rEvent.Element >>= aPropertyValue;
+    }
+    else if ( aAccessor == "ooInetHTTPProxyPort" )
+    {
+        aPropertyName = "http.proxyPort";
+        sal_Int32 n = 0;
+        rEvent.Element >>= n;
+        aPropertyValue = OUString::number(n);
+    }
+    else if ( aAccessor == "ooInetHTTPSProxyName" )
+    {
+        aPropertyName = "https.proxyHost";
+        rEvent.Element >>= aPropertyValue;
+    }
+    else if ( aAccessor == "ooInetHTTPSProxyPort" )
+    {
+        aPropertyName = "https.proxyPort";
+        sal_Int32 n = 0;
+        rEvent.Element >>= n;
+        aPropertyValue = OUString::number(n);
+    }
+    else if ( aAccessor == "ooInetNoProxy" )
+    {
+        aPropertyName = "http.nonProxyHosts";
+        rEvent.Element >>= aPropertyValue;
+        aPropertyValue = aPropertyValue.replace(';', '|');
+    }
+    else if ( aAccessor == "NetAccess" )
+    {
+        aPropertyName = "appletviewer.security.mode";
+        sal_Int32 n = 0;
+        if (rEvent.Element >>= n)
+            switch (n)
+            {
+            case 0:
+                aPropertyValue = "host";
+                break;
+            case 1:
+                aPropertyValue = "unrestricted";
+                break;
+            case 3:
+                aPropertyValue = "none";
+                break;
+            }
+        else
+            return;
+        bSecurityChanged = true;
+    }
+    else if ( aAccessor == "Security" )
+    {
+        aPropertyName = "stardiv.security.disableSecurity";
+        bool b;
+        if (rEvent.Element >>= b)
+            if (b)
+                aPropertyValue = "false";
+            else
+                aPropertyValue = "true";
+        else
+            return;
+        bSecurityChanged = true;
+    }
+    else
+        return;
+
+    rtl::Reference< jvmaccess::VirtualMachine > xVirtualMachine;
+    {
+        osl::MutexGuard aGuard(m_aMutex);
+        if (m_xUnoVirtualMachine.is()) {
+            xVirtualMachine = m_xUnoVirtualMachine->getVirtualMachine();
+        }
+    }
+    if (!xVirtualMachine.is())
+        return;
+
+    try
+    {
+        jvmaccess::VirtualMachine::AttachGuard aAttachGuard(
+            xVirtualMachine);
+        JNIEnv * pJNIEnv = aAttachGuard.getEnvironment();
+
+        // call java.lang.System.setProperty
+        // String setProperty( String key, String value)
+        jclass jcSystem= pJNIEnv->FindClass("java/lang/System");
+        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:FindClass java/lang/System", nullptr);
+        jmethodID jmSetProps= pJNIEnv->GetStaticMethodID( jcSystem, "setProperty","(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
+        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetStaticMethodID java.lang.System.setProperty", nullptr);
+
+        jstring jsPropName= pJNIEnv->NewString( reinterpret_cast<jchar const *>(aPropertyName.getStr()), aPropertyName.getLength());
+        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+
+        // remove the property if it does not have a value ( user left the dialog field empty)
+        // or if the port is set to 0
+        aPropertyValue= aPropertyValue.trim();
+        if( aPropertyValue.isEmpty() ||
+           ((aPropertyName == "http.proxyPort" /*|| aPropertyName == "socksProxyPort"*/) && aPropertyValue == "0")
+          )
+        {
+            // call java.lang.System.getProperties
+            jmethodID jmGetProps= pJNIEnv->GetStaticMethodID( jcSystem, "getProperties","()Ljava/util/Properties;");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetStaticMethodID java.lang.System.getProperties", nullptr);
+            jobject joProperties= pJNIEnv->CallStaticObjectMethod( jcSystem, jmGetProps);
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.getProperties", nullptr);
+            // call java.util.Properties.remove
+            jclass jcProperties= pJNIEnv->FindClass("java/util/Properties");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:FindClass java/util/Properties", nullptr);
+            jmethodID jmRemove= pJNIEnv->GetMethodID( jcProperties, "remove", "(Ljava/lang/Object;)Ljava/lang/Object;");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetMethodID java.util.Properties.remove", nullptr);
+            pJNIEnv->CallObjectMethod( joProperties, jmRemove, jsPropName);
+        }
+        else
+        {
+            // Change the Value of the property
+            jstring jsPropValue= pJNIEnv->NewString( reinterpret_cast<jchar const *>(aPropertyValue.getStr()), aPropertyValue.getLength());
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+            pJNIEnv->CallStaticObjectMethod( jcSystem, jmSetProps, jsPropName, jsPropValue);
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.setProperty", nullptr);
+        }
+
+        // If the settings for Security and NetAccess changed then we have to notify the SandboxSecurity
+        // SecurityManager
+        // call System.getSecurityManager()
+        if (bSecurityChanged)
+        {
+            jmethodID jmGetSecur= pJNIEnv->GetStaticMethodID( jcSystem,"getSecurityManager","()Ljava/lang/SecurityManager;");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetStaticMethodID java.lang.System.getSecurityManager", nullptr);
+            jobject joSecur= pJNIEnv->CallStaticObjectMethod( jcSystem, jmGetSecur);
+            if (joSecur != nullptr)
+            {
+                // Make sure the SecurityManager is our SandboxSecurity
+                // FindClass("com.sun.star.lib.sandbox.SandboxSecurityManager" only worked at the first time
+                // this code was executed. Maybe it is a security feature. However, all attempts to debug the
+                // SandboxSecurity class (maybe the VM invokes checkPackageAccess)  failed.
+//                  jclass jcSandboxSec= pJNIEnv->FindClass("com.sun.star.lib.sandbox.SandboxSecurity");
+//                  if(pJNIEnv->ExceptionOccurred()) throw RuntimeException("JNI:FindClass com.sun.star.lib.sandbox.SandboxSecurity");
+//                  jboolean bIsSand= pJNIEnv->IsInstanceOf( joSecur, jcSandboxSec);
+                // The SecurityManagers class Name must be com.sun.star.lib.sandbox.SandboxSecurity
+                jclass jcSec= pJNIEnv->GetObjectClass( joSecur);
+                jclass jcClass= pJNIEnv->FindClass("java/lang/Class");
+                if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:FindClass java.lang.Class", nullptr);
+                jmethodID jmName= pJNIEnv->GetMethodID( jcClass,"getName","()Ljava/lang/String;");
+                if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetMethodID java.lang.Class.getName", nullptr);
+                jstring jsClass= static_cast<jstring>(pJNIEnv->CallObjectMethod( jcSec, jmName));
+                const jchar* jcharName= pJNIEnv->GetStringChars( jsClass, nullptr);
+                OUString sName(reinterpret_cast<sal_Unicode const *>(jcharName));
+                bool bIsSandbox;
+                bIsSandbox = sName == "com.sun.star.lib.sandbox.SandboxSecurity";
+                pJNIEnv->ReleaseStringChars( jsClass, jcharName);
+
+                if (bIsSandbox)
+                {
+                    // call SandboxSecurity.reset
+                    jmethodID jmReset= pJNIEnv->GetMethodID( jcSec,"reset","()V");
+                    if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetMethodID com.sun.star.lib.sandbox.SandboxSecurity.reset", nullptr);
+                    pJNIEnv->CallVoidMethod( joSecur, jmReset);
+                    if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallVoidMethod com.sun.star.lib.sandbox.SandboxSecurity.reset", nullptr);
+                }
+            }
+        }
+    }
+    catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw css::lang::WrappedTargetRuntimeException(
+            "jvmaccess::VirtualMachine::AttachGuard::CreationException",
+            getXWeak(), anyEx );
+    }
+}
+
+JavaVirtualMachine::~JavaVirtualMachine()
+{
+    if (m_xInetConfiguration.is())
+        // We should never get here, but just in case...
+        try
+        {
+            m_xInetConfiguration->removeContainerListener(this);
+        }
+        catch (css::uno::Exception &)
+        {
+            OSL_FAIL("com.sun.star.uno.Exception caught");
+        }
+    if (m_xJavaConfiguration.is())
+        // We should never get here, but just in case...
+        try
+        {
+            m_xJavaConfiguration->removeContainerListener(this);
+        }
+        catch (css::uno::Exception &)
+        {
+            OSL_FAIL("com.sun.star.uno.Exception caught");
+        }
+}
+
+void SAL_CALL JavaVirtualMachine::disposing()
+{
+    css::uno::Reference< css::container::XContainer > xContainer1;
+    css::uno::Reference< css::container::XContainer > xContainer2;
+    {
+        osl::MutexGuard aGuard(m_aMutex);
+        m_bDisposed = true;
+        xContainer1 = m_xInetConfiguration;
+        m_xInetConfiguration.clear();
+        xContainer2 = m_xJavaConfiguration;
+        m_xJavaConfiguration.clear();
+    }
+    if (xContainer1.is())
+        xContainer1->removeContainerListener(this);
+    if (xContainer2.is())
+        xContainer2->removeContainerListener(this);
+}
+
+/*We listen to changes in the configuration. For example, the user changes the proxy
+  settings in the options dialog (menu tools). Then we are notified of this change and
+  if the java vm is already running we change the properties (System.lang.System.setProperties)
+  through JNI.
+  To receive notifications this class implements XContainerListener.
+*/
+void JavaVirtualMachine::registerConfigChangesListener()
+{
+    try
+    {
+        css::uno::Reference< css::lang::XMultiServiceFactory > xConfigProvider(
+            m_xContext->getValueByName(
+                "/singletons/com.sun.star.configuration.theDefaultProvider"),
+            css::uno::UNO_QUERY);
+
+        if (xConfigProvider.is())
+        {
+            // We register this instance as listener to changes in org.openoffice.Inet/Settings
+            // arguments for ConfigurationAccess
+            css::uno::Sequence<css::uno::Any> aArguments(comphelper::InitAnyPropertySequence(
+            {
+                {"nodepath", css::uno::Any(OUString("org.openoffice.Inet/Settings"))},
+                {"depth", css::uno::Any(sal_Int32(-1))}
+            }));
+            m_xInetConfiguration.set(
+                    xConfigProvider->createInstanceWithArguments(
+                        "com.sun.star.configuration.ConfigurationAccess",
+                        aArguments),
+                    css::uno::UNO_QUERY);
+
+            if (m_xInetConfiguration.is())
+                m_xInetConfiguration->addContainerListener(this);
+
+            // now register as listener to changes in org.openoffice.Java/VirtualMachine
+            css::uno::Sequence<css::uno::Any> aArguments2(comphelper::InitAnyPropertySequence(
+            {
+                {"nodepath", css::uno::Any(OUString("org.openoffice.Office.Java/VirtualMachine"))},
+                {"depth", css::uno::Any(sal_Int32(-1))} // depth: -1 means unlimited
+            }));
+            m_xJavaConfiguration.set(
+                    xConfigProvider->createInstanceWithArguments(
+                        "com.sun.star.configuration.ConfigurationAccess",
+                        aArguments2),
+                    css::uno::UNO_QUERY);
+
+            if (m_xJavaConfiguration.is())
+                m_xJavaConfiguration->addContainerListener(this);
+        }
+    }catch(const css::uno::Exception & e)
+    {
+        SAL_INFO("stoc", "could not set up listener for Configuration because of >" << e << "<");
+    }
+}
+
+// param true: all Inet setting are set as Java Properties on a live VM.
+// false: the Java net properties are set to empty value.
+void JavaVirtualMachine::setINetSettingsInVM(bool set_reset)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+    try
+    {
+        if (m_xUnoVirtualMachine.is())
+        {
+            jvmaccess::VirtualMachine::AttachGuard aAttachGuard(
+                m_xUnoVirtualMachine->getVirtualMachine());
+            JNIEnv * pJNIEnv = aAttachGuard.getEnvironment();
+
+            // The Java Properties
+            OUString sHttpProxyHost("http.proxyHost");
+            OUString sHttpProxyPort("http.proxyPort");
+            OUString sHttpNonProxyHosts("http.nonProxyHosts");
+
+            // create Java Properties as JNI strings
+            jstring jsHttpProxyHost= pJNIEnv->NewString( reinterpret_cast<jchar const *>(sHttpProxyHost.getStr()), sHttpProxyHost.getLength());
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+            jstring jsHttpProxyPort= pJNIEnv->NewString( reinterpret_cast<jchar const *>(sHttpProxyPort.getStr()), sHttpProxyPort.getLength());
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+            jstring jsHttpNonProxyHosts= pJNIEnv->NewString( reinterpret_cast<jchar const *>(sHttpNonProxyHosts.getStr()), sHttpNonProxyHosts.getLength());
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+
+            // prepare java.lang.System.setProperty
+            jclass jcSystem= pJNIEnv->FindClass("java/lang/System");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:FindClass java/lang/System", nullptr);
+            jmethodID jmSetProps= pJNIEnv->GetStaticMethodID( jcSystem, "setProperty","(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetStaticMethodID java.lang.System.setProperty", nullptr);
+
+            // call java.lang.System.getProperties
+            jmethodID jmGetProps= pJNIEnv->GetStaticMethodID( jcSystem, "getProperties","()Ljava/util/Properties;");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetStaticMethodID java.lang.System.getProperties", nullptr);
+            jobject joProperties= pJNIEnv->CallStaticObjectMethod( jcSystem, jmGetProps);
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.getProperties", nullptr);
+            // prepare java.util.Properties.remove
+            jclass jcProperties= pJNIEnv->FindClass("java/util/Properties");
+            if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:FindClass java/util/Properties", nullptr);
+
+            if (set_reset)
+            {
+                // Set all network properties with the VM
+                JVM jvm;
+                getINetPropsFromConfig( &jvm, m_xContext->getServiceManager(), m_xContext);
+                const ::std::vector< OUString> & Props = jvm.getProperties();
+
+                for( auto& prop : Props)
+                {
+                    sal_Int32 index= prop.indexOf( '=');
+                    std::u16string_view propName= prop.subView( 0, index);
+                    OUString propValue= prop.copy( index + 1);
+
+                    if (propName == sHttpProxyHost)
+                    {
+                        jstring jsVal= pJNIEnv->NewString( reinterpret_cast<jchar const *>(propValue.getStr()), propValue.getLength());
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+                        pJNIEnv->CallStaticObjectMethod( jcSystem, jmSetProps, jsHttpProxyHost, jsVal);
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.setProperty", nullptr);
+                    }
+                    else if( propName == sHttpProxyPort)
+                    {
+                        jstring jsVal= pJNIEnv->NewString( reinterpret_cast<jchar const *>(propValue.getStr()), propValue.getLength());
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+                        pJNIEnv->CallStaticObjectMethod( jcSystem, jmSetProps, jsHttpProxyPort, jsVal);
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.setProperty", nullptr);
+                    }
+                    else if( propName == sHttpNonProxyHosts)
+                    {
+                        jstring jsVal= pJNIEnv->NewString( reinterpret_cast<jchar const *>(propValue.getStr()), propValue.getLength());
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:NewString", nullptr);
+                        pJNIEnv->CallStaticObjectMethod( jcSystem, jmSetProps, jsHttpNonProxyHosts, jsVal);
+                        if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:CallStaticObjectMethod java.lang.System.setProperty", nullptr);
+                    }
+                }
+            }
+            else
+            {
+                // call java.util.Properties.remove
+                jmethodID jmRemove= pJNIEnv->GetMethodID( jcProperties, "remove", "(Ljava/lang/Object;)Ljava/lang/Object;");
+                if(pJNIEnv->ExceptionOccurred()) throw css::uno::RuntimeException("JNI:GetMethodID java.util.Property.remove", nullptr);
+                pJNIEnv->CallObjectMethod( joProperties, jmRemove, jsHttpProxyHost);
+                pJNIEnv->CallObjectMethod( joProperties, jmRemove, jsHttpProxyPort);
+                pJNIEnv->CallObjectMethod( joProperties, jmRemove, jsHttpNonProxyHosts);
+            }
+        }
+    }
+    catch (css::uno::RuntimeException &)
+    {
+        OSL_FAIL("RuntimeException");
+    }
+    catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &)
+    {
+        OSL_FAIL("jvmaccess::VirtualMachine::AttachGuard::CreationException");
+    }
+}
+
+void JavaVirtualMachine::setUpUnoVirtualMachine(JNIEnv * environment) {
+    css::uno::Reference< css::util::XMacroExpander > exp = css::util::theMacroExpander::get(m_xContext);
+    OUString baseUrl;
+    try {
+        baseUrl = exp->expandMacros("$URE_INTERNAL_JAVA_DIR/");
+    } catch (css::lang::IllegalArgumentException &) {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw css::lang::WrappedTargetRuntimeException(
+            "css::lang::IllegalArgumentException",
+            getXWeak(), anyEx );
+    }
+    OUString classPath;
+    try {
+        classPath = exp->expandMacros("$URE_INTERNAL_JAVA_CLASSPATH");
+    } catch (css::lang::IllegalArgumentException &) {}
+    jclass class_URLClassLoader = environment->FindClass(
+        "java/net/URLClassLoader");
+    if (class_URLClassLoader == nullptr) {
+        handleJniException(environment);
+    }
+    jmethodID ctor_URLClassLoader = environment->GetMethodID(
+        class_URLClassLoader, "<init>", "([Ljava/net/URL;)V");
+    if (ctor_URLClassLoader == nullptr) {
+        handleJniException(environment);
+    }
+    jclass class_URL = environment->FindClass("java/net/URL");
+    if (class_URL == nullptr) {
+        handleJniException(environment);
+    }
+    jmethodID ctor_URL_1 = environment->GetMethodID(
+        class_URL, "<init>", "(Ljava/lang/String;)V");
+    if (ctor_URL_1 == nullptr) {
+        handleJniException(environment);
+    }
+    jvalue args[3];
+    args[0].l = environment->NewString(
+        reinterpret_cast< jchar const * >(baseUrl.getStr()),
+        static_cast< jsize >(baseUrl.getLength()));
+    if (args[0].l == nullptr) {
+        handleJniException(environment);
+    }
+    jobject base = environment->NewObjectA(class_URL, ctor_URL_1, args);
+    if (base == nullptr) {
+        handleJniException(environment);
+    }
+    jmethodID ctor_URL_2 = environment->GetMethodID(
+        class_URL, "<init>", "(Ljava/net/URL;Ljava/lang/String;)V");
+    if (ctor_URL_2 == nullptr) {
+        handleJniException(environment);
+    }
+    jobjectArray classpath = jvmaccess::ClassPath::translateToUrls(
+        m_xContext, environment, classPath);
+    if (classpath == nullptr) {
+        handleJniException(environment);
+    }
+    args[0].l = base;
+    args[1].l = environment->NewStringUTF("unoloader.jar");
+    if (args[1].l == nullptr) {
+        handleJniException(environment);
+    }
+    args[0].l = environment->NewObjectA(class_URL, ctor_URL_2, args);
+    if (args[0].l == nullptr) {
+        handleJniException(environment);
+    }
+    args[0].l = environment->NewObjectArray(1, class_URL, args[0].l);
+    if (args[0].l == nullptr) {
+        handleJniException(environment);
+    }
+    jobject cl1 = environment->NewObjectA(
+        class_URLClassLoader, ctor_URLClassLoader, args);
+    if (cl1 == nullptr) {
+        handleJniException(environment);
+    }
+    jmethodID method_loadClass = environment->GetMethodID(
+        class_URLClassLoader, "loadClass",
+        "(Ljava/lang/String;)Ljava/lang/Class;");
+    if (method_loadClass == nullptr) {
+        handleJniException(environment);
+    }
+    args[0].l = environment->NewStringUTF(
+        "com.sun.star.lib.unoloader.UnoClassLoader");
+    if (args[0].l == nullptr) {
+        handleJniException(environment);
+    }
+    jclass class_UnoClassLoader = static_cast< jclass >(
+        environment->CallObjectMethodA(cl1, method_loadClass, args));
+    if (class_UnoClassLoader == nullptr) {
+        handleJniException(environment);
+    }
+    jmethodID ctor_UnoClassLoader = environment->GetMethodID(
+        class_UnoClassLoader, "<init>",
+        "(Ljava/net/URL;[Ljava/net/URL;Ljava/lang/ClassLoader;)V");
+    if (ctor_UnoClassLoader == nullptr) {
+        handleJniException(environment);
+    }
+    args[0].l = base;
+    args[1].l = classpath;
+    args[2].l = cl1;
+    jobject cl2 = environment->NewObjectA(
+        class_UnoClassLoader, ctor_UnoClassLoader, args);
+    if (cl2 == nullptr) {
+        handleJniException(environment);
+    }
+    try {
+        m_xUnoVirtualMachine = new jvmaccess::UnoVirtualMachine(
+            m_xVirtualMachine, cl2);
+    } catch (jvmaccess::UnoVirtualMachine::CreationException &) {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw css::lang::WrappedTargetRuntimeException(
+            "jvmaccess::UnoVirtualMachine::CreationException",
+            getXWeak(), anyEx );
+    }
+}
+
+void JavaVirtualMachine::handleJniException(JNIEnv * environment) {
+#if defined DBG_UTIL
+    environment->ExceptionDescribe();
+#else
+    environment->ExceptionClear();
+#endif
+    throw css::uno::RuntimeException(
+        "JNI exception occurred",
+        getXWeak());
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_JavaVM_get_implementation(
+    css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new JavaVirtualMachine(context));
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/javavm.hxx b/stoc/source/javavm/javavm.hxx
new file mode 100644
index 0000000000..b4f79d1f9f
--- /dev/null
+++ b/stoc/source/javavm/javavm.hxx
@@ -0,0 +1,147 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STOC_SOURCE_JAVAVM_JAVAVM_HXX
+#define INCLUDED_STOC_SOURCE_JAVAVM_JAVAVM_HXX
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-attributes"
+#endif
+#include <jni.h>
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <com/sun/star/container/XContainerListener.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/java/XJavaThreadRegister_11.hpp>
+#include <com/sun/star/java/XJavaVM.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <osl/thread.hxx>
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+
+namespace com::sun::star {
+    namespace container { class XContainer; }
+    namespace uno { class XComponentContext; }
+}
+namespace jvmaccess {
+    class UnoVirtualMachine;
+    class VirtualMachine;
+}
+
+namespace stoc_javavm {
+
+class JavaVirtualMachine:
+    private cppu::BaseMutex,
+    public cppu::WeakComponentImplHelper<
+        css::lang::XInitialization, css::lang::XServiceInfo, css::java::XJavaVM,
+        css::java::XJavaThreadRegister_11, css::container::XContainerListener>
+{
+public:
+    explicit JavaVirtualMachine(
+        css::uno::Reference<
+            css::uno::XComponentContext > xContext);
+
+    // XInitialization
+    virtual void SAL_CALL
+    initialize(css::uno::Sequence< css::uno::Any > const &
+                   rArguments) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL
+    supportsService(OUString const & rServiceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    // XJavaVM
+    virtual css::uno::Any SAL_CALL
+    getJavaVM(css::uno::Sequence< sal_Int8 > const & rProcessId) override;
+
+    virtual sal_Bool SAL_CALL isVMStarted() override;
+
+    virtual sal_Bool SAL_CALL isVMEnabled() override;
+
+    // XJavaThreadRegister_11
+    virtual sal_Bool SAL_CALL isThreadAttached() override;
+
+    virtual void SAL_CALL registerThread() override;
+
+    virtual void SAL_CALL revokeThread() override;
+
+    // XContainerListener
+    virtual void SAL_CALL
+    disposing(css::lang::EventObject const & rSource) override;
+
+    virtual void SAL_CALL
+    elementInserted(css::container::ContainerEvent const & rEvent) override;
+
+    virtual void SAL_CALL
+    elementRemoved(css::container::ContainerEvent const & rEvent) override;
+
+    virtual void SAL_CALL
+    elementReplaced(css::container::ContainerEvent const & rEvent) override;
+
+private:
+    JavaVirtualMachine(JavaVirtualMachine const &) = delete;
+    void operator =(const JavaVirtualMachine&) = delete;
+
+    virtual ~JavaVirtualMachine() override;
+
+    virtual void SAL_CALL disposing() override;
+
+    void registerConfigChangesListener();
+
+    void setINetSettingsInVM(bool set_reset);
+
+    void setUpUnoVirtualMachine(JNIEnv * environment);
+
+    void handleJniException(JNIEnv * environment);
+
+    css::uno::Reference< css::uno::XComponentContext >
+        m_xContext;
+
+    // the following are controlled by BaseMutex::m_aMutex:
+    bool m_bDisposed;
+    rtl::Reference< jvmaccess::VirtualMachine > m_xVirtualMachine;
+    rtl::Reference< jvmaccess::UnoVirtualMachine > m_xUnoVirtualMachine;
+    JavaVM * m_pJavaVm;
+        // If the first creation of Java failed and this flag is set then the
+        // next call to getJavaVM throws a RuntimException.  This is useful when
+        // the second attempt to create Java might cause a crash.
+    css::uno::Reference< css::container::XContainer >
+        m_xInetConfiguration;
+    css::uno::Reference< css::container::XContainer >
+        m_xJavaConfiguration; // for Java settings
+
+    osl::ThreadData m_aAttachGuards;
+};
+
+}
+
+#endif // INCLUDED_STOC_SOURCE_JAVAVM_JAVAVM_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/jvmargs.cxx b/stoc/source/javavm/jvmargs.cxx
new file mode 100644
index 0000000000..f98f22ec0c
--- /dev/null
+++ b/stoc/source/javavm/jvmargs.cxx
@@ -0,0 +1,32 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "jvmargs.hxx"
+#include <rtl/ustring.hxx>
+
+namespace stoc_javavm
+{
+JVM::JVM() noexcept //: _enabled(sal_False)
+{
+}
+
+void JVM::pushProp(const OUString& property) { _props.push_back(property); }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/javavm/jvmargs.hxx b/stoc/source/javavm/jvmargs.hxx
new file mode 100644
index 0000000000..adc41ffa15
--- /dev/null
+++ b/stoc/source/javavm/jvmargs.hxx
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#ifndef INCLUDED_STOC_SOURCE_JAVAVM_JVMARGS_HXX
+#define INCLUDED_STOC_SOURCE_JAVAVM_JVMARGS_HXX
+
+
+#include <vector>
+#include <rtl/ustring.hxx>
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-attributes"
+#endif
+#include <jni.h>
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+extern "C" {
+    typedef jint JNICALL JNI_InitArgs_Type(void *);
+    typedef jint JNICALL JNI_CreateVM_Type(JavaVM **, JNIEnv **, void *);
+
+}
+
+namespace stoc_javavm {
+
+    class JVM {
+        ::std::vector<OUString> _props;
+
+    public:
+        JVM() noexcept;
+
+        void pushProp(const OUString & uString);
+        const ::std::vector< OUString> & getProperties() const { return _props;}
+    };
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/loader/dllcomponentloader.cxx b/stoc/source/loader/dllcomponentloader.cxx
new file mode 100644
index 0000000000..43f20ad0a5
--- /dev/null
+++ b/stoc/source/loader/dllcomponentloader.cxx
@@ -0,0 +1,152 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <osl/diagnose.h>
+#include <rtl/ustring.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/shlib.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/bootstrap.hxx>
+
+#include <com/sun/star/loader/XImplementationLoader.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+namespace com::sun::star::registry { class XRegistryKey; }
+
+using namespace com::sun::star;
+using namespace css::uno;
+using namespace css::loader;
+using namespace css::lang;
+using namespace css::registry;
+using namespace cppu;
+using namespace osl;
+
+namespace {
+
+class DllComponentLoader
+    : public WeakImplHelper< XImplementationLoader,
+                              XInitialization,
+                              XServiceInfo >
+{
+public:
+    explicit DllComponentLoader( const Reference<XComponentContext> & xCtx );
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName(  ) override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& aArguments ) override;
+
+    // XImplementationLoader
+    virtual Reference<XInterface> SAL_CALL activate( const OUString& implementationName, const OUString& implementationLoaderUrl, const OUString& locationUrl, const Reference<XRegistryKey>& xKey ) override;
+    virtual sal_Bool SAL_CALL writeRegistryInfo( const Reference<XRegistryKey>& xKey, const OUString& implementationLoaderUrl, const OUString& locationUrl ) override;
+
+private:
+    Reference<XMultiServiceFactory> m_xSMgr;
+};
+
+
+DllComponentLoader::DllComponentLoader( const Reference<XComponentContext> & xCtx )
+{
+    m_xSMgr.set( xCtx->getServiceManager(), UNO_QUERY );
+}
+
+OUString SAL_CALL DllComponentLoader::getImplementationName(  )
+{
+    return "com.sun.star.comp.stoc.DLLComponentLoader";
+}
+
+sal_Bool SAL_CALL DllComponentLoader::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence<OUString> SAL_CALL DllComponentLoader::getSupportedServiceNames(  )
+{
+    return { "com.sun.star.loader.SharedLibrary" };
+}
+
+
+void DllComponentLoader::initialize( const css::uno::Sequence< css::uno::Any >& )
+{
+    OSL_FAIL( "dllcomponentloader::initialize should not be called !" );
+//      if( aArgs.getLength() != 1 )
+//      {
+//          throw IllegalArgumentException();
+//      }
+
+//      Reference< XMultiServiceFactory > rServiceManager;
+
+//      if( aArgs.getConstArray()[0].getValueType().getTypeClass() == TypeClass_INTERFACE )
+//      {
+//          aArgs.getConstArray()[0] >>= rServiceManager;
+//      }
+
+//      if( !rServiceManager.is() )
+//      {
+//          throw IllegalArgumentException();
+//      }
+
+//      m_xSMgr = rServiceManager;
+}
+
+
+Reference<XInterface> SAL_CALL DllComponentLoader::activate(
+    const OUString & rImplName, const OUString &, const OUString & rLibName,
+    const Reference< XRegistryKey > & )
+{
+    return loadSharedLibComponentFactory(
+        cppu::bootstrap_expandUri(rLibName), OUString(), rImplName, m_xSMgr,
+        css::uno::Reference<css::registry::XRegistryKey>());
+}
+
+
+sal_Bool SAL_CALL DllComponentLoader::writeRegistryInfo(
+    const Reference< XRegistryKey > & xKey, const OUString &, const OUString & rLibName )
+{
+#ifdef DISABLE_DYNLOADING
+    (void) xKey;
+    (void) rLibName;
+    OSL_FAIL( "DllComponentLoader::writeRegistryInfo() should not be called I think?" );
+    return sal_False;
+#else
+    writeSharedLibComponentInfo(
+        cppu::bootstrap_expandUri(rLibName), OUString(), m_xSMgr, xKey );
+    return true;
+#endif
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_DLLComponentLoader_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new DllComponentLoader(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/namingservice/namingservice.component b/stoc/source/namingservice/namingservice.component
new file mode 100644
index 0000000000..3ba192e866
--- /dev/null
+++ b/stoc/source/namingservice/namingservice.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.stoc.NamingService"
+    constructor="stoc_NamingService_Impl_get_implementation">
+    <service name="com.sun.star.uno.NamingService"/>
+  </implementation>
+</component>
diff --git a/stoc/source/namingservice/namingservice.cxx b/stoc/source/namingservice/namingservice.cxx
new file mode 100644
index 0000000000..acabb7370c
--- /dev/null
+++ b/stoc/source/namingservice/namingservice.cxx
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <com/sun/star/uno/XNamingService.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+
+#include <mutex>
+#include <unordered_map>
+
+using namespace cppu;
+using namespace osl;
+
+using namespace css::uno;
+using namespace css::lang;
+using namespace css::registry;
+
+
+namespace stoc_namingservice
+{
+
+typedef std::unordered_map< OUString, Reference<XInterface > > HashMap_OWString_Interface;
+
+namespace {
+
+class NamingService_Impl
+    : public WeakImplHelper < XServiceInfo, XNamingService >
+{
+    std::mutex                          aMutex;
+    HashMap_OWString_Interface          aMap;
+public:
+    NamingService_Impl();
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    virtual css::uno::Reference< css::uno::XInterface > SAL_CALL getRegisteredObject( const OUString& Name ) override;
+    virtual void SAL_CALL registerObject( const OUString& Name, const css::uno::Reference< css::uno::XInterface >& Object ) override;
+    virtual void SAL_CALL revokeObject( const OUString& Name ) override;
+};
+
+}
+
+
+
+NamingService_Impl::NamingService_Impl() {}
+
+// XServiceInfo
+OUString NamingService_Impl::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.NamingService";
+}
+
+// XServiceInfo
+sal_Bool NamingService_Impl::supportsService( const OUString & rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+// XServiceInfo
+Sequence< OUString > NamingService_Impl::getSupportedServiceNames()
+{
+    return { "com.sun.star.uno.NamingService" };
+}
+
+// XServiceInfo
+Reference< XInterface > NamingService_Impl::getRegisteredObject( const OUString& Name )
+{
+    std::scoped_lock aGuard( aMutex );
+    Reference< XInterface > xRet;
+    HashMap_OWString_Interface::iterator aIt = aMap.find( Name );
+    if( aIt != aMap.end() )
+        xRet = (*aIt).second;
+    return xRet;
+}
+
+// XServiceInfo
+void NamingService_Impl::registerObject( const OUString& Name, const Reference< XInterface >& Object )
+{
+    std::scoped_lock aGuard( aMutex );
+    aMap[ Name ] = Object;
+}
+
+// XServiceInfo
+void NamingService_Impl::revokeObject( const OUString& Name )
+{
+    std::scoped_lock aGuard( aMutex );
+    aMap.erase( Name );
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_NamingService_Impl_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new stoc_namingservice::NamingService_Impl());
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/proxy_factory/proxyfac.component b/stoc/source/proxy_factory/proxyfac.component
new file mode 100644
index 0000000000..b069f88dff
--- /dev/null
+++ b/stoc/source/proxy_factory/proxyfac.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.reflection.ProxyFactory"
+    constructor="stoc_FactoryImpl_get_implementation" single-instance="true">
+    <service name="com.sun.star.reflection.ProxyFactory"/>
+  </implementation>
+</component>
diff --git a/stoc/source/proxy_factory/proxyfac.cxx b/stoc/source/proxy_factory/proxyfac.cxx
new file mode 100644
index 0000000000..6745d0163c
--- /dev/null
+++ b/stoc/source/proxy_factory/proxyfac.cxx
@@ -0,0 +1,411 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <osl/diagnose.h>
+#include <osl/interlck.h>
+#include <rtl/ref.hxx>
+#include <uno/dispatcher.hxx>
+#include <uno/data.h>
+#include <uno/lbnames.h>
+#include <uno/mapping.hxx>
+#include <uno/environment.hxx>
+#include <typelib/typedescription.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <cppuhelper/weakagg.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/reflection/XProxyFactory.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <utility>
+
+
+using namespace ::com::sun::star;
+using namespace css::uno;
+
+
+namespace
+{
+
+struct FactoryImpl : public ::cppu::WeakImplHelper< lang::XServiceInfo,
+                                                     reflection::XProxyFactory >
+{
+    Environment m_uno_env;
+    Environment m_cpp_env;
+    Mapping m_uno2cpp;
+    Mapping m_cpp2uno;
+
+    UnoInterfaceReference binuno_queryInterface(
+        UnoInterfaceReference const & unoI,
+        typelib_InterfaceTypeDescription * pTypeDescr );
+
+    FactoryImpl();
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString & rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XProxyFactory
+    virtual Reference< XAggregation > SAL_CALL createProxy(
+        Reference< XInterface > const & xTarget ) override;
+};
+
+
+UnoInterfaceReference FactoryImpl::binuno_queryInterface(
+    UnoInterfaceReference const & unoI,
+    typelib_InterfaceTypeDescription * pTypeDescr )
+{
+    // init queryInterface() td
+    static typelib_TypeDescription* s_pQITD = []() {
+        typelib_TypeDescription* pTXInterfaceDescr = nullptr;
+        TYPELIB_DANGER_GET(&pTXInterfaceDescr, cppu::UnoType<XInterface>::get().getTypeLibType());
+        typelib_TypeDescription* pQITD = nullptr;
+        typelib_typedescriptionreference_getDescription(
+            &pQITD, reinterpret_cast<typelib_InterfaceTypeDescription*>(pTXInterfaceDescr)
+                        ->ppAllMembers[0]);
+        TYPELIB_DANGER_RELEASE(pTXInterfaceDescr);
+        return pQITD;
+    }();
+
+    void * args[ 1 ];
+    args[ 0 ] = &reinterpret_cast< typelib_TypeDescription * >(
+        pTypeDescr )->pWeakRef;
+    uno_Any ret_val, exc_space;
+    uno_Any * exc = &exc_space;
+
+    unoI.dispatch( s_pQITD, &ret_val, args, &exc );
+
+    if (exc == nullptr)
+    {
+        UnoInterfaceReference ret;
+        if (ret_val.pType->eTypeClass == typelib_TypeClass_INTERFACE)
+        {
+            ret.set( *static_cast< uno_Interface ** >(ret_val.pData),
+                     SAL_NO_ACQUIRE );
+            typelib_typedescriptionreference_release( ret_val.pType );
+        }
+        else
+        {
+            uno_any_destruct( &ret_val, nullptr );
+        }
+        return ret;
+    }
+    else
+    {
+        // exception occurred:
+        OSL_ENSURE(
+            typelib_typedescriptionreference_isAssignableFrom( cppu::UnoType<RuntimeException>::get().getTypeLibType(),
+                exc->pType ),
+            "### RuntimeException expected!" );
+        Any cpp_exc;
+        uno_type_copyAndConvertData(
+            &cpp_exc, exc, cppu::UnoType<decltype(cpp_exc)>::get().getTypeLibType(),
+            m_uno2cpp.get() );
+        uno_any_destruct( exc, nullptr );
+        ::cppu::throwException( cpp_exc );
+        OSL_ASSERT( false ); // way of no return
+        return UnoInterfaceReference(); // for dummy
+    }
+}
+
+
+struct ProxyRoot : public ::cppu::OWeakAggObject
+{
+    // XAggregation
+    virtual Any SAL_CALL queryAggregation( Type const & rType ) override;
+
+    ProxyRoot( ::rtl::Reference< FactoryImpl > factory,
+                      Reference< XInterface > const & xTarget );
+
+    ::rtl::Reference< FactoryImpl > m_factory;
+
+private:
+    UnoInterfaceReference m_target;
+};
+
+
+struct binuno_Proxy : public uno_Interface
+{
+    oslInterlockedCount m_nRefCount;
+    ::rtl::Reference< ProxyRoot > m_root;
+    UnoInterfaceReference m_target;
+    OUString m_oid;
+    TypeDescription m_typeDescr;
+
+    binuno_Proxy(
+        ::rtl::Reference< ProxyRoot > root,
+        UnoInterfaceReference target,
+        OUString oid, TypeDescription typeDescr );
+};
+
+extern "C"
+{
+
+
+static void binuno_proxy_free(
+    uno_ExtEnvironment * pEnv, void * pProxy )
+{
+    binuno_Proxy * proxy = static_cast< binuno_Proxy * >(
+        static_cast< uno_Interface * >( pProxy ) );
+    OSL_ASSERT( proxy->m_root->m_factory->m_uno_env.get()->pExtEnv == pEnv );
+    delete proxy;
+}
+
+
+static void binuno_proxy_acquire( uno_Interface * pUnoI )
+{
+    binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
+    if (osl_atomic_increment( &that->m_nRefCount ) != 1)
+        return;
+
+    // rebirth of zombie
+    uno_ExtEnvironment * uno_env =
+        that->m_root->m_factory->m_uno_env.get()->pExtEnv;
+    OSL_ASSERT( uno_env != nullptr );
+    (*uno_env->registerProxyInterface)(
+        uno_env, reinterpret_cast< void ** >( &pUnoI ), binuno_proxy_free,
+        that->m_oid.pData,
+        reinterpret_cast< typelib_InterfaceTypeDescription * >(
+            that->m_typeDescr.get() ) );
+    OSL_ASSERT( that == static_cast< binuno_Proxy * >( pUnoI ) );
+}
+
+
+static void binuno_proxy_release( uno_Interface * pUnoI )
+{
+    binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
+    if (osl_atomic_decrement( &that->m_nRefCount ) == 0)
+    {
+        uno_ExtEnvironment * uno_env =
+            that->m_root->m_factory->m_uno_env.get()->pExtEnv;
+        OSL_ASSERT( uno_env != nullptr );
+        (*uno_env->revokeInterface)( uno_env, pUnoI );
+    }
+}
+
+
+static void binuno_proxy_dispatch(
+    uno_Interface * pUnoI, const typelib_TypeDescription * pMemberType,
+    void * pReturn, void * pArgs [], uno_Any ** ppException )
+{
+    binuno_Proxy * that = static_cast< binuno_Proxy * >( pUnoI );
+    switch (reinterpret_cast< typelib_InterfaceMemberTypeDescription const * >(
+                pMemberType )->nPosition)
+    {
+    case 0: // queryInterface()
+    {
+        try
+        {
+            Type const & rType =
+                *static_cast< Type const * >( pArgs[ 0 ] );
+            Any ret( that->m_root->queryInterface( rType ) );
+            uno_type_copyAndConvertData(
+                pReturn, &ret, cppu::UnoType<decltype(ret)>::get().getTypeLibType(),
+                that->m_root->m_factory->m_cpp2uno.get() );
+            *ppException = nullptr; // no exc
+        }
+        catch (RuntimeException &)
+        {
+            Any exc( ::cppu::getCaughtException() );
+            uno_type_any_constructAndConvert(
+                *ppException, const_cast< void * >(exc.getValue()),
+                exc.getValueTypeRef(),
+                that->m_root->m_factory->m_cpp2uno.get() );
+        }
+        break;
+    }
+    case 1: // acquire()
+        binuno_proxy_acquire( pUnoI );
+        *ppException = nullptr; // no exc
+        break;
+    case 2: // release()
+        binuno_proxy_release( pUnoI );
+        *ppException = nullptr; // no exc
+        break;
+    default:
+        that->m_target.dispatch( pMemberType, pReturn, pArgs, ppException );
+        break;
+    }
+}
+
+}
+
+
+binuno_Proxy::binuno_Proxy(
+    ::rtl::Reference< ProxyRoot > root,
+    UnoInterfaceReference target,
+    OUString oid, TypeDescription typeDescr )
+    : m_nRefCount( 1 ),
+      m_root(std::move( root )),
+      m_target(std::move( target )),
+      m_oid(std::move( oid )),
+      m_typeDescr(std::move( typeDescr ))
+{
+    uno_Interface::acquire = binuno_proxy_acquire;
+    uno_Interface::release = binuno_proxy_release;
+    uno_Interface::pDispatcher = binuno_proxy_dispatch;
+}
+
+ProxyRoot::ProxyRoot(
+    ::rtl::Reference< FactoryImpl > factory,
+    Reference< XInterface > const & xTarget )
+    : m_factory(std::move( factory ))
+{
+    m_factory->m_cpp2uno.mapInterface(
+        reinterpret_cast< void ** >( &m_target.m_pUnoI ), xTarget.get(),
+        cppu::UnoType<decltype(xTarget)>::get() );
+    OSL_ENSURE( m_target.is(), "### mapping interface failed!" );
+}
+
+
+Any ProxyRoot::queryAggregation( Type const & rType )
+{
+    Any ret( OWeakAggObject::queryAggregation( rType ) );
+    if (! ret.hasValue())
+    {
+        typelib_TypeDescription * pTypeDescr = nullptr;
+        TYPELIB_DANGER_GET( &pTypeDescr, rType.getTypeLibType() );
+        try
+        {
+            Reference< XInterface > xProxy;
+            uno_ExtEnvironment * cpp_env = m_factory->m_cpp_env.get()->pExtEnv;
+            OSL_ASSERT( cpp_env != nullptr );
+
+            // mind a new delegator, calculate current root:
+            Reference< XInterface > xRoot(
+                static_cast< OWeakObject * >(this), UNO_QUERY_THROW );
+            OUString oid;
+            (*cpp_env->getObjectIdentifier)( cpp_env, &oid.pData, xRoot.get() );
+            OSL_ASSERT( !oid.isEmpty() );
+
+            (*cpp_env->getRegisteredInterface)(
+                cpp_env, reinterpret_cast< void ** >( &xProxy ),
+                oid.pData, reinterpret_cast<
+                typelib_InterfaceTypeDescription * >(pTypeDescr) );
+            if (! xProxy.is())
+            {
+                // perform query on target:
+                UnoInterfaceReference proxy_target(
+                    m_factory->binuno_queryInterface(
+                        m_target, reinterpret_cast<
+                        typelib_InterfaceTypeDescription * >(pTypeDescr) ) );
+                if (proxy_target.is())
+                {
+                    // ensure root's object entries:
+                    UnoInterfaceReference root;
+                    m_factory->m_cpp2uno.mapInterface(
+                        reinterpret_cast< void ** >( &root.m_pUnoI ),
+                        xRoot.get(), cppu::UnoType<decltype(xRoot)>::get() );
+
+                    UnoInterfaceReference proxy(
+                        // ref count initially 1:
+                        new binuno_Proxy( this, proxy_target, oid, pTypeDescr ),
+                        SAL_NO_ACQUIRE );
+                    uno_ExtEnvironment * uno_env =
+                        m_factory->m_uno_env.get()->pExtEnv;
+                    OSL_ASSERT( uno_env != nullptr );
+                    (*uno_env->registerProxyInterface)(
+                        uno_env, reinterpret_cast< void ** >( &proxy.m_pUnoI ),
+                        binuno_proxy_free, oid.pData,
+                        reinterpret_cast< typelib_InterfaceTypeDescription * >(
+                            pTypeDescr ) );
+
+                    m_factory->m_uno2cpp.mapInterface(
+                        reinterpret_cast< void ** >( &xProxy ),
+                        proxy.get(), pTypeDescr );
+                }
+            }
+            if (xProxy.is())
+                ret.setValue( &xProxy, pTypeDescr );
+        }
+        catch (...) // finally
+        {
+            TYPELIB_DANGER_RELEASE( pTypeDescr );
+            throw;
+        }
+        TYPELIB_DANGER_RELEASE( pTypeDescr );
+    }
+    return ret;
+}
+
+
+FactoryImpl::FactoryImpl()
+{
+    OUString uno = UNO_LB_UNO;
+    OUString cpp = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
+
+    uno_getEnvironment(
+        reinterpret_cast< uno_Environment ** >( &m_uno_env ), uno.pData, nullptr );
+    OSL_ENSURE( m_uno_env.is(), "### cannot get binary uno env!" );
+
+    uno_getEnvironment(
+        reinterpret_cast< uno_Environment ** >( &m_cpp_env ), cpp.pData, nullptr );
+    OSL_ENSURE( m_cpp_env.is(), "### cannot get C++ uno env!" );
+
+    uno_getMapping(
+        reinterpret_cast< uno_Mapping ** >( &m_uno2cpp ),
+        m_uno_env.get(), m_cpp_env.get(), nullptr );
+    OSL_ENSURE( m_uno2cpp.is(), "### cannot get bridge uno <-> C++!" );
+
+    uno_getMapping(
+        reinterpret_cast< uno_Mapping ** >( &m_cpp2uno ),
+        m_cpp_env.get(), m_uno_env.get(), nullptr );
+    OSL_ENSURE( m_cpp2uno.is(), "### cannot get bridge C++ <-> uno!" );
+}
+
+// XProxyFactory
+
+Reference< XAggregation > FactoryImpl::createProxy(
+    Reference< XInterface > const & xTarget )
+{
+    return new ProxyRoot( this, xTarget );
+}
+
+// XServiceInfo
+
+OUString FactoryImpl::getImplementationName()
+{
+    return "com.sun.star.comp.reflection.ProxyFactory";
+}
+
+sal_Bool FactoryImpl::supportsService( const OUString & rServiceName )
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > FactoryImpl::getSupportedServiceNames()
+{
+    return { "com.sun.star.reflection.ProxyFactory" };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+stoc_FactoryImpl_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new FactoryImpl);
+}
+
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/security/access_controller.cxx b/stoc/source/security/access_controller.cxx
new file mode 100644
index 0000000000..1359e529c7
--- /dev/null
+++ b/stoc/source/security/access_controller.cxx
@@ -0,0 +1,863 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <utility>
+#include <vector>
+
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+#include <osl/thread.hxx>
+
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+
+#include <uno/current_context.h>
+#include <uno/lbnames.h>
+
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <com/sun/star/uno/XCurrentContext.hpp>
+#include <com/sun/star/uno/DeploymentException.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/security/XAccessController.hpp>
+#include <com/sun/star/security/XPolicy.hpp>
+
+#include "lru_cache.h"
+#include "permissions.h"
+
+#include <memory>
+
+constexpr OUString SERVICE_NAME = u"com.sun.star.security.AccessController"_ustr;
+constexpr OUStringLiteral USER_CREDS  = u"access-control.user-credentials.id";
+
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star;
+using namespace css::uno;
+using namespace stoc_sec;
+
+namespace {
+
+// static stuff initialized when loading lib
+OUString s_envType = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
+constexpr OUString s_acRestriction = u"access-control.restriction"_ustr;
+
+
+/** ac context intersects permissions of two ac contexts
+*/
+class acc_Intersection
+    : public WeakImplHelper< security::XAccessControlContext >
+{
+    Reference< security::XAccessControlContext > m_x1, m_x2;
+
+    acc_Intersection(
+        Reference< security::XAccessControlContext > const & x1,
+        Reference< security::XAccessControlContext > const & x2 );
+
+public:
+    static Reference< security::XAccessControlContext > create(
+        Reference< security::XAccessControlContext > const & x1,
+        Reference< security::XAccessControlContext > const & x2 );
+
+    // XAccessControlContext impl
+    virtual void SAL_CALL checkPermission(
+        Any const & perm ) override;
+};
+
+acc_Intersection::acc_Intersection(
+    Reference< security::XAccessControlContext > const & x1,
+    Reference< security::XAccessControlContext > const & x2 )
+    : m_x1( x1 )
+    , m_x2( x2 )
+{}
+
+Reference< security::XAccessControlContext > acc_Intersection::create(
+    Reference< security::XAccessControlContext > const & x1,
+    Reference< security::XAccessControlContext > const & x2 )
+{
+    if (! x1.is())
+        return x2;
+    if (! x2.is())
+        return x1;
+    return new acc_Intersection( x1, x2 );
+}
+
+void acc_Intersection::checkPermission(
+    Any const & perm )
+{
+    m_x1->checkPermission( perm );
+    m_x2->checkPermission( perm );
+}
+
+/** ac context unifies permissions of two ac contexts
+*/
+class acc_Union
+    : public WeakImplHelper< security::XAccessControlContext >
+{
+    Reference< security::XAccessControlContext > m_x1, m_x2;
+
+    acc_Union(
+        Reference< security::XAccessControlContext > const & x1,
+        Reference< security::XAccessControlContext > const & x2 );
+
+public:
+    static Reference< security::XAccessControlContext > create(
+        Reference< security::XAccessControlContext > const & x1,
+        Reference< security::XAccessControlContext > const & x2 );
+
+    // XAccessControlContext impl
+    virtual void SAL_CALL checkPermission(
+        Any const & perm ) override;
+};
+
+acc_Union::acc_Union(
+    Reference< security::XAccessControlContext > const & x1,
+    Reference< security::XAccessControlContext > const & x2 )
+    : m_x1( x1 )
+    , m_x2( x2 )
+{}
+
+Reference< security::XAccessControlContext > acc_Union::create(
+    Reference< security::XAccessControlContext > const & x1,
+    Reference< security::XAccessControlContext > const & x2 )
+{
+    if (! x1.is())
+        return Reference< security::XAccessControlContext >(); // unrestricted
+    if (! x2.is())
+        return Reference< security::XAccessControlContext >(); // unrestricted
+    return new acc_Union( x1, x2 );
+}
+
+void acc_Union::checkPermission(
+    Any const & perm )
+{
+    try
+    {
+        m_x1->checkPermission( perm );
+    }
+    catch (security::AccessControlException &)
+    {
+        m_x2->checkPermission( perm );
+    }
+}
+
+/** ac context doing permission checks on static permissions
+*/
+class acc_Policy
+    : public WeakImplHelper< security::XAccessControlContext >
+{
+    PermissionCollection m_permissions;
+
+public:
+    explicit acc_Policy(
+        PermissionCollection permissions )
+        : m_permissions(std::move( permissions ))
+    {}
+
+    // XAccessControlContext impl
+    virtual void SAL_CALL checkPermission(
+        Any const & perm ) override;
+};
+
+void acc_Policy::checkPermission(
+    Any const & perm )
+{
+    m_permissions.checkPermission( perm );
+}
+
+/** current context overriding dynamic ac restriction
+*/
+class acc_CurrentContext
+    : public WeakImplHelper< XCurrentContext >
+{
+    Reference< XCurrentContext > m_xDelegate;
+    Any m_restriction;
+
+public:
+    acc_CurrentContext(
+        Reference< XCurrentContext > const & xDelegate,
+        Reference< security::XAccessControlContext > const & xRestriction );
+
+    // XCurrentContext impl
+    virtual Any SAL_CALL getValueByName( OUString const & name ) override;
+};
+
+acc_CurrentContext::acc_CurrentContext(
+    Reference< XCurrentContext > const & xDelegate,
+    Reference< security::XAccessControlContext > const & xRestriction )
+    : m_xDelegate( xDelegate )
+{
+    if (xRestriction.is())
+    {
+        m_restriction <<= xRestriction;
+    }
+    // return empty any otherwise on getValueByName(), not null interface
+}
+
+Any acc_CurrentContext::getValueByName( OUString const & name )
+{
+    if (name == s_acRestriction)
+    {
+        return m_restriction;
+    }
+    else if (m_xDelegate.is())
+    {
+        return m_xDelegate->getValueByName( name );
+    }
+    else
+    {
+        return Any();
+    }
+}
+
+
+Reference< security::XAccessControlContext > getDynamicRestriction(
+    Reference< XCurrentContext > const & xContext )
+{
+    if (xContext.is())
+    {
+        Any acc(xContext->getValueByName(s_acRestriction));
+        if (typelib_TypeClass_INTERFACE == acc.pType->eTypeClass)
+        {
+            // avoid ref-counting
+            OUString const & typeName =
+                OUString::unacquired( &acc.pType->pTypeName );
+            if ( typeName == "com.sun.star.security.XAccessControlContext" )
+            {
+                return Reference< security::XAccessControlContext >(
+                    *static_cast< security::XAccessControlContext ** >( acc.pData ) );
+            }
+            else // try to query
+            {
+                return Reference< security::XAccessControlContext >::query(
+                    *static_cast< XInterface ** >( acc.pData ) );
+            }
+        }
+    }
+    return Reference< security::XAccessControlContext >();
+}
+
+class cc_reset
+{
+    void * m_cc;
+public:
+    explicit cc_reset( void * cc )
+        : m_cc( cc ) {}
+    ~cc_reset()
+        { ::uno_setCurrentContext( m_cc, s_envType.pData, nullptr ); }
+};
+
+typedef WeakComponentImplHelper<
+    security::XAccessController, lang::XServiceInfo, lang::XInitialization > t_helper;
+
+
+class AccessController
+    : public cppu::BaseMutex
+    , public t_helper
+{
+    Reference< XComponentContext > m_xComponentContext;
+
+    Reference< security::XPolicy > m_xPolicy;
+    Reference< security::XPolicy > const & getPolicy();
+
+    // mode
+    enum class Mode { Off, On, DynamicOnly, SingleUser, SingleDefaultUser };
+    Mode m_mode;
+
+    PermissionCollection m_defaultPermissions;
+    // for single-user mode
+    PermissionCollection m_singleUserPermissions;
+    OUString m_singleUserId;
+    bool m_defaultPerm_init;
+    bool m_singleUser_init;
+    // for multi-user mode
+    lru_cache< OUString, PermissionCollection, OUStringHash, std::equal_to< OUString > >
+        m_user2permissions;
+
+    ThreadData m_rec;
+    typedef std::vector< std::pair< OUString, Any > > t_rec_vec;
+    void clearPostPoned();
+    void checkAndClearPostPoned();
+
+    PermissionCollection getEffectivePermissions(
+        Reference< XCurrentContext > const & xContext,
+        Any const & demanded_perm );
+
+protected:
+    virtual void SAL_CALL disposing() override;
+
+public:
+    explicit AccessController( Reference< XComponentContext > const & xComponentContext );
+
+    //  XInitialization impl
+    virtual void SAL_CALL initialize(
+        Sequence< Any > const & arguments ) override;
+
+    // XAccessController impl
+    virtual void SAL_CALL checkPermission(
+        Any const & perm ) override;
+    virtual Any SAL_CALL doRestricted(
+        Reference< security::XAction > const & xAction,
+        Reference< security::XAccessControlContext > const & xRestriction ) override;
+    virtual Any SAL_CALL doPrivileged(
+        Reference< security::XAction > const & xAction,
+        Reference< security::XAccessControlContext > const & xRestriction ) override;
+    virtual Reference< security::XAccessControlContext > SAL_CALL getContext() override;
+
+    // XServiceInfo impl
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+};
+
+AccessController::AccessController( Reference< XComponentContext > const & xComponentContext )
+    : t_helper( m_aMutex )
+    , m_xComponentContext( xComponentContext )
+    , m_mode( Mode::On ) // default
+    , m_defaultPerm_init( false )
+    , m_singleUser_init( false )
+    , m_rec( nullptr )
+{
+    // The .../mode value had originally been set in
+    // cppu::add_access_control_entries (cppuhelper/source/servicefactory.cxx)
+    // to something other than "off" depending on various UNO_AC* bootstrap
+    // variables that are no longer supported, so this is mostly dead code now:
+    OUString mode;
+    if (m_xComponentContext->getValueByName( "/services/" + SERVICE_NAME + "/mode" ) >>= mode)
+    {
+        if ( mode == "off" )
+        {
+            m_mode = Mode::Off;
+        }
+        else if ( mode == "on" )
+        {
+            m_mode = Mode::On;
+        }
+        else if ( mode == "dynamic-only" )
+        {
+            m_mode = Mode::DynamicOnly;
+        }
+        else if ( mode == "single-user" )
+        {
+            m_xComponentContext->getValueByName(
+                "/services/" + SERVICE_NAME + "/single-user-id" ) >>= m_singleUserId;
+            if (m_singleUserId.isEmpty())
+            {
+                throw RuntimeException(
+                    "expected a user id in component context entry "
+                    "\"/services/" + SERVICE_NAME + "/single-user-id\"!",
+                    getXWeak() );
+            }
+            m_mode = Mode::SingleUser;
+        }
+        else if ( mode == "single-default-user" )
+        {
+            m_mode = Mode::SingleDefaultUser;
+        }
+    }
+
+    // switch on caching for Mode::DynamicOnly and Mode::On (shareable multi-user process)
+    if (Mode::On != m_mode && Mode::DynamicOnly != m_mode)
+        return;
+
+    sal_Int32 cacheSize = 0; // multi-user cache size
+    if (! (m_xComponentContext->getValueByName(
+        "/services/" + SERVICE_NAME + "/user-cache-size" ) >>= cacheSize))
+    {
+        cacheSize = 128; // reasonable default?
+    }
+#ifdef __CACHE_DIAGNOSE
+    cacheSize = 2;
+#endif
+    m_user2permissions.setSize( cacheSize );
+}
+
+void AccessController::disposing()
+{
+    m_mode = Mode::Off; // avoid checks from now on xxx todo review/ better Mode::DynamicOnly?
+    m_xPolicy.clear();
+    m_xComponentContext.clear();
+}
+
+// XInitialization impl
+
+void AccessController::initialize(
+    Sequence< Any > const & arguments )
+{
+    // xxx todo: review for forking
+    // portal forking hack: re-initialize for another user-id
+    if (Mode::SingleUser != m_mode) // only if in single-user mode
+    {
+        throw RuntimeException(
+            "invalid call: ac must be in \"single-user\" mode!", getXWeak() );
+    }
+    OUString userId;
+    arguments[ 0 ] >>= userId;
+    if ( userId.isEmpty() )
+    {
+        throw RuntimeException(
+            "expected a user-id as first argument!", getXWeak() );
+    }
+    // assured that no sync is necessary: no check happens at this forking time
+    m_singleUserId = userId;
+    m_singleUser_init = false;
+}
+
+
+Reference< security::XPolicy > const & AccessController::getPolicy()
+{
+    // get policy singleton
+    if (! m_xPolicy.is())
+    {
+        Reference< security::XPolicy > xPolicy;
+        m_xComponentContext->getValueByName(
+            "/singletons/com.sun.star.security.thePolicy" ) >>= xPolicy;
+        if (!xPolicy.is())
+        {
+            throw SecurityException(
+                "cannot get policy singleton!", getXWeak() );
+        }
+
+        MutexGuard guard( m_aMutex );
+        if (! m_xPolicy.is())
+        {
+            m_xPolicy = xPolicy;
+        }
+    }
+    return m_xPolicy;
+}
+
+#ifdef __DIAGNOSE
+static void dumpPermissions(
+    PermissionCollection const & collection, OUString const & userId = OUString() )
+{
+    OUStringBuffer buf( 48 );
+    if (!userId.isEmpty())
+    {
+        buf.append( "> dumping permissions of user \"" );
+        buf.append( userId );
+        buf.append( "\":" );
+    }
+    else
+    {
+        buf.append( "> dumping default permissions:" );
+    }
+    SAL_INFO("stoc", buf.makeStringAndClear() );
+    Sequence< OUString > permissions( collection.toStrings() );
+    OUString const * p = permissions.getConstArray();
+    for ( sal_Int32 nPos = 0; nPos < permissions.getLength(); ++nPos )
+    {
+        SAL_INFO("stoc", p[ nPos ] );
+    }
+    SAL_INFO("stoc", "> permission dump done" );
+}
+#endif
+
+
+void AccessController::clearPostPoned()
+{
+    delete static_cast< t_rec_vec * >( m_rec.getData() );
+    m_rec.setData( nullptr );
+}
+
+void AccessController::checkAndClearPostPoned()
+{
+    // check postponed permissions
+    std::unique_ptr< t_rec_vec > rec( static_cast< t_rec_vec * >( m_rec.getData() ) );
+    m_rec.setData( nullptr ); // takeover ownership
+    OSL_ASSERT(rec);
+    if (!rec)
+        return;
+
+    t_rec_vec const& vec = *rec;
+    switch (m_mode)
+    {
+    case Mode::SingleUser:
+    {
+        OSL_ASSERT( m_singleUser_init );
+        for (const auto & p : vec)
+        {
+            OSL_ASSERT( m_singleUserId == p.first );
+            m_singleUserPermissions.checkPermission( p.second );
+        }
+        break;
+    }
+    case Mode::SingleDefaultUser:
+    {
+        OSL_ASSERT( m_defaultPerm_init );
+        for (const auto & p : vec)
+        {
+            OSL_ASSERT( p.first.isEmpty() ); // default-user
+            m_defaultPermissions.checkPermission( p.second );
+        }
+        break;
+    }
+    case Mode::On:
+    {
+        for (const auto & p : vec)
+        {
+            PermissionCollection const * pPermissions;
+            // lookup policy for user
+            {
+                MutexGuard guard( m_aMutex );
+                pPermissions = m_user2permissions.lookup( p.first );
+            }
+            OSL_ASSERT( pPermissions );
+            if (pPermissions)
+            {
+                pPermissions->checkPermission( p.second );
+            }
+        }
+        break;
+    }
+    default:
+        OSL_FAIL( "### this should never be called in this ac mode!" );
+        break;
+    }
+}
+
+/** this is the only function calling the policy singleton and thus has to take care
+    of recurring calls!
+
+    @param demanded_perm (if not empty) is the demanded permission of a checkPermission() call
+                         which will be postponed for recurring calls
+*/
+PermissionCollection AccessController::getEffectivePermissions(
+    Reference< XCurrentContext > const & xContext,
+    Any const & demanded_perm )
+{
+    OUString userId;
+
+    switch (m_mode)
+    {
+    case Mode::SingleUser:
+    {
+        if (m_singleUser_init)
+            return m_singleUserPermissions;
+        userId = m_singleUserId;
+        break;
+    }
+    case Mode::SingleDefaultUser:
+    {
+        if (m_defaultPerm_init)
+            return m_defaultPermissions;
+        break;
+    }
+    case Mode::On:
+    {
+        if (xContext.is())
+        {
+            xContext->getValueByName( USER_CREDS ) >>= userId;
+        }
+        if ( userId.isEmpty() )
+        {
+            throw SecurityException(
+                "cannot determine current user in multi-user ac!", getXWeak() );
+        }
+
+        // lookup policy for user
+        MutexGuard guard( m_aMutex );
+        PermissionCollection const * pPermissions = m_user2permissions.lookup( userId );
+        if (pPermissions)
+            return *pPermissions;
+        break;
+    }
+    default:
+        OSL_FAIL( "### this should never be called in this ac mode!" );
+        return PermissionCollection();
+    }
+
+    // call on policy
+    // iff this is a recurring call for the default user, then grant all permissions
+    t_rec_vec * rec = static_cast< t_rec_vec * >( m_rec.getData() );
+    if (rec) // tls entry exists => this is recursive call
+    {
+        if (demanded_perm.hasValue())
+        {
+            // enqueue
+            rec->push_back( std::pair< OUString, Any >( userId, demanded_perm ) );
+        }
+#ifdef __DIAGNOSE
+        SAL_INFO("stoc", "> info: recurring call of user: " << userId );
+#endif
+        return PermissionCollection( new AllPermission() );
+    }
+    else // no tls
+    {
+        rec = new t_rec_vec;
+        m_rec.setData( rec );
+    }
+
+    try // calls on API
+    {
+        // init default permissions
+        if (! m_defaultPerm_init)
+        {
+            PermissionCollection defaultPermissions(
+                getPolicy()->getDefaultPermissions() );
+            // assign
+            MutexGuard guard( m_aMutex );
+            if (! m_defaultPerm_init)
+            {
+                m_defaultPermissions = defaultPermissions;
+                m_defaultPerm_init = true;
+            }
+#ifdef __DIAGNOSE
+            dumpPermissions( m_defaultPermissions );
+#endif
+        }
+
+        PermissionCollection ret;
+
+        // init user permissions
+        switch (m_mode)
+        {
+        case Mode::SingleUser:
+        {
+            ret = PermissionCollection(
+                getPolicy()->getPermissions( userId ), m_defaultPermissions );
+            {
+            // assign
+            MutexGuard guard( m_aMutex );
+            if (m_singleUser_init)
+            {
+                ret = m_singleUserPermissions;
+            }
+            else
+            {
+                m_singleUserPermissions = ret;
+                m_singleUser_init = true;
+            }
+            }
+#ifdef __DIAGNOSE
+            dumpPermissions( ret, userId );
+#endif
+            break;
+        }
+        case Mode::SingleDefaultUser:
+        {
+            ret = m_defaultPermissions;
+            break;
+        }
+        case Mode::On:
+        {
+            ret = PermissionCollection(
+                getPolicy()->getPermissions( userId ), m_defaultPermissions );
+            {
+            // cache
+            MutexGuard guard( m_aMutex );
+            m_user2permissions.set( userId, ret );
+            }
+#ifdef __DIAGNOSE
+            dumpPermissions( ret, userId );
+#endif
+            break;
+        }
+        default:
+            break;
+        }
+
+        // check postponed
+        checkAndClearPostPoned();
+        return ret;
+    }
+    catch (const security::AccessControlException & exc) // wrapped into DeploymentException
+    {
+        clearPostPoned(); // safety: exception could have happened before checking postponed?
+        throw DeploymentException( "deployment error (AccessControlException occurred): " + exc.Message, exc.Context );
+    }
+    catch (RuntimeException &)
+    {
+        // don't check postponed, just cleanup
+        clearPostPoned();
+        delete static_cast< t_rec_vec * >( m_rec.getData() );
+        m_rec.setData( nullptr );
+        throw;
+    }
+    catch (Exception &)
+    {
+        // check postponed permissions first
+        // => AccessControlExceptions are errors, user exceptions not!
+        checkAndClearPostPoned();
+        throw;
+    }
+    catch (...)
+    {
+        // don't check postponed, just cleanup
+        clearPostPoned();
+        throw;
+    }
+}
+
+// XAccessController impl
+
+void AccessController::checkPermission(
+    Any const & perm )
+{
+    if (rBHelper.bDisposed)
+    {
+        throw lang::DisposedException(
+            "checkPermission() call on disposed AccessController!", getXWeak() );
+    }
+
+    if (Mode::Off == m_mode)
+        return;
+
+    // first dynamic check of ac contexts
+    Reference< XCurrentContext > xContext;
+    ::uno_getCurrentContext( reinterpret_cast<void **>(&xContext), s_envType.pData, nullptr );
+    Reference< security::XAccessControlContext > xACC( getDynamicRestriction( xContext ) );
+    if (xACC.is())
+    {
+        xACC->checkPermission( perm );
+    }
+
+    if (Mode::DynamicOnly == m_mode)
+        return;
+
+    // then static check
+    getEffectivePermissions( xContext, perm ).checkPermission( perm );
+}
+
+Any AccessController::doRestricted(
+    Reference< security::XAction > const & xAction,
+    Reference< security::XAccessControlContext > const & xRestriction )
+{
+    if (rBHelper.bDisposed)
+    {
+        throw lang::DisposedException(
+            "doRestricted() call on disposed AccessController!", getXWeak() );
+    }
+
+    if (Mode::Off == m_mode) // optimize this way, because no dynamic check will be performed
+        return xAction->run();
+
+    if (xRestriction.is())
+    {
+        Reference< XCurrentContext > xContext;
+        ::uno_getCurrentContext( reinterpret_cast<void **>(&xContext), s_envType.pData, nullptr );
+
+        // override restriction
+        Reference< XCurrentContext > xNewContext(
+            new acc_CurrentContext( xContext, acc_Intersection::create(
+                                        xRestriction, getDynamicRestriction( xContext ) ) ) );
+        ::uno_setCurrentContext( xNewContext.get(), s_envType.pData, nullptr );
+        cc_reset reset( xContext.get() );
+        return xAction->run();
+    }
+    else
+    {
+        return xAction->run();
+    }
+}
+
+Any AccessController::doPrivileged(
+    Reference< security::XAction > const & xAction,
+    Reference< security::XAccessControlContext > const & xRestriction )
+{
+    if (rBHelper.bDisposed)
+    {
+        throw lang::DisposedException(
+            "doPrivileged() call on disposed AccessController!", getXWeak() );
+    }
+
+    if (Mode::Off == m_mode) // no dynamic check will be performed
+    {
+        return xAction->run();
+    }
+
+    Reference< XCurrentContext > xContext;
+    ::uno_getCurrentContext( reinterpret_cast<void **>(&xContext), s_envType.pData, nullptr );
+
+    Reference< security::XAccessControlContext > xOldRestr(
+        getDynamicRestriction( xContext ) );
+
+    if (xOldRestr.is()) // previous restriction
+    {
+        // override restriction
+        Reference< XCurrentContext > xNewContext(
+            new acc_CurrentContext( xContext, acc_Union::create( xRestriction, xOldRestr ) ) );
+        ::uno_setCurrentContext( xNewContext.get(), s_envType.pData, nullptr );
+        cc_reset reset( xContext.get() );
+        return xAction->run();
+    }
+    else // no previous restriction => never current restriction
+    {
+        return xAction->run();
+    }
+}
+
+Reference< security::XAccessControlContext > AccessController::getContext()
+{
+    if (rBHelper.bDisposed)
+    {
+        throw lang::DisposedException(
+            "getContext() call on disposed AccessController!", getXWeak() );
+    }
+
+    if (Mode::Off == m_mode) // optimize this way, because no dynamic check will be performed
+    {
+        return new acc_Policy( PermissionCollection( new AllPermission() ) );
+    }
+
+    Reference< XCurrentContext > xContext;
+    ::uno_getCurrentContext( reinterpret_cast<void **>(&xContext), s_envType.pData, nullptr );
+
+    return acc_Intersection::create(
+        getDynamicRestriction( xContext ),
+        new acc_Policy( getEffectivePermissions( xContext, Any() ) ) );
+}
+
+// XServiceInfo impl
+
+OUString AccessController::getImplementationName()
+{
+    return "com.sun.star.security.comp.stoc.AccessController";
+}
+
+sal_Bool AccessController::supportsService( OUString const & serviceName )
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+Sequence< OUString > AccessController::getSupportedServiceNames()
+{
+    Sequence<OUString> aSNS { SERVICE_NAME };
+    return aSNS;
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_security_comp_stoc_AccessController_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new AccessController(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/security/file_policy.cxx b/stoc/source/security/file_policy.cxx
new file mode 100644
index 0000000000..63d0c6156e
--- /dev/null
+++ b/stoc/source/security/file_policy.cxx
@@ -0,0 +1,494 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <osl/diagnose.h>
+#include <osl/file.h>
+#include <rtl/byteseq.hxx>
+#include <rtl/ustrbuf.hxx>
+
+#include <cppuhelper/access_control.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/security/XPolicy.hpp>
+#include <com/sun/star/security/AllPermission.hpp>
+#include <com/sun/star/security/RuntimePermission.hpp>
+#include <com/sun/star/io/FilePermission.hpp>
+#include <com/sun/star/connection/SocketPermission.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include <string_view>
+#include <unordered_map>
+#include <utility>
+
+constexpr OUString IMPL_NAME = u"com.sun.star.security.comp.stoc.FilePolicy"_ustr;
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star;
+using namespace css::uno;
+
+namespace {
+
+typedef WeakComponentImplHelper< security::XPolicy, lang::XServiceInfo > t_helper;
+
+
+class FilePolicy
+    : public cppu::BaseMutex
+    , public t_helper
+{
+    Reference< XComponentContext > m_xComponentContext;
+    AccessControl m_ac;
+
+    Sequence< Any > m_defaultPermissions;
+    typedef std::unordered_map< OUString, Sequence< Any > > t_permissions;
+    t_permissions m_userPermissions;
+    bool m_init;
+
+protected:
+    virtual void SAL_CALL disposing() override;
+
+public:
+    explicit FilePolicy( Reference< XComponentContext > const & xComponentContext );
+
+    // XPolicy impl
+    virtual Sequence< Any > SAL_CALL getPermissions(
+        OUString const & userId ) override;
+    virtual Sequence< Any > SAL_CALL getDefaultPermissions() override;
+    virtual void SAL_CALL refresh() override;
+
+    // XServiceInfo impl
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+};
+
+FilePolicy::FilePolicy( Reference< XComponentContext > const & xComponentContext )
+    : t_helper( m_aMutex )
+    , m_xComponentContext( xComponentContext )
+    , m_ac( xComponentContext )
+    , m_init( false )
+{}
+
+void FilePolicy::disposing()
+{
+    m_userPermissions.clear();
+    m_defaultPermissions = Sequence< Any >();
+    m_xComponentContext.clear();
+}
+
+
+Sequence< Any > FilePolicy::getPermissions(
+    OUString const & userId )
+{
+    if (! m_init)
+    {
+        refresh();
+        m_init = true;
+    }
+
+    MutexGuard guard( m_aMutex );
+    t_permissions::iterator iFind( m_userPermissions.find( userId ) );
+    if (m_userPermissions.end() == iFind)
+    {
+        return Sequence< Any >();
+    }
+    else
+    {
+        return iFind->second;
+    }
+}
+
+Sequence< Any > FilePolicy::getDefaultPermissions()
+{
+    if (! m_init)
+    {
+        refresh();
+        m_init = true;
+    }
+
+    MutexGuard guard( m_aMutex );
+    return m_defaultPermissions;
+}
+
+
+class PolicyReader
+{
+    OUString m_fileName;
+    oslFileHandle m_file;
+
+    sal_Int32 m_linepos;
+    rtl::ByteSequence m_line;
+    sal_Int32 m_pos;
+    sal_Unicode m_back;
+
+    sal_Unicode get();
+    void back( sal_Unicode c )
+        { m_back = c; }
+
+    static bool isWhiteSpace( sal_Unicode c )
+        { return (' ' == c || '\t' == c || '\n' == c || '\r' == c); }
+    void skipWhiteSpace();
+
+    static bool isCharToken( sal_Unicode c )
+        { return (';' == c || ',' == c || '{' == c || '}' == c); }
+
+public:
+    PolicyReader( OUString file, AccessControl & ac );
+    ~PolicyReader();
+
+    void error( std::u16string_view msg );
+
+    OUString getToken();
+    OUString assureToken();
+    OUString getQuotedToken();
+    OUString assureQuotedToken();
+    void assureToken( sal_Unicode token );
+};
+
+void PolicyReader::assureToken( sal_Unicode token )
+{
+    skipWhiteSpace();
+    sal_Unicode c = get();
+    if (c == token)
+        return;
+    OUString msg = "expected >" + OUStringChar(c) + "<!";
+    error( msg );
+}
+
+OUString PolicyReader::assureQuotedToken()
+{
+    OUString token( getQuotedToken() );
+    if (token.isEmpty())
+        error( u"unexpected end of file!" );
+    return token;
+}
+
+OUString PolicyReader::getQuotedToken()
+{
+    skipWhiteSpace();
+    OUStringBuffer buf( 32 );
+    sal_Unicode c = get();
+    if ('\"' != c)
+        error( u"expected quoting >\"< character!" );
+    c = get();
+    while ('\0' != c && '\"' != c)
+    {
+        buf.append( c );
+        c = get();
+    }
+    return buf.makeStringAndClear();
+}
+
+OUString PolicyReader::assureToken()
+{
+    OUString token( getToken() );
+    if ( token.isEmpty())
+        error( u"unexpected end of file!" );
+    return token;
+}
+
+OUString PolicyReader::getToken()
+{
+    skipWhiteSpace();
+    sal_Unicode c = get();
+    if (isCharToken( c ))
+        return OUString( &c, 1 );
+    OUStringBuffer buf( 32 );
+    while ('\0' != c && !isCharToken( c ) && !isWhiteSpace( c ))
+    {
+        buf.append( c );
+        c = get();
+    }
+    back( c );
+    return buf.makeStringAndClear();
+}
+
+void PolicyReader::skipWhiteSpace()
+{
+    sal_Unicode c;
+    do
+    {
+        c = get();
+    }
+    while (isWhiteSpace( c )); // seeking next non-whitespace char
+
+    if ('/' == c) // C/C++ like comment
+    {
+        c = get();
+        if ('/' == c) // C++ like comment
+        {
+            do
+            {
+                c = get();
+            }
+            while ('\n' != c && '\0' != c); // seek eol/eof
+            skipWhiteSpace(); // cont skip on next line
+        }
+        else if ('*' == c) // C like comment
+        {
+            bool fini = true;
+            do
+            {
+                c = get();
+                if ('*' == c)
+                {
+                    c = get();
+                    fini = ('/' == c || '\0' == c);
+                }
+                else
+                {
+                    fini = ('\0' == c);
+                }
+            }
+            while (! fini);
+            skipWhiteSpace(); // cont skip on next line
+        }
+        else
+        {
+            error( u"expected C/C++ like comment!" );
+        }
+    }
+    else if ('#' == c) // script like comment
+    {
+        do
+        {
+            c = get();
+        }
+        while ('\n' != c && '\0' != c); // seek eol/eof
+        skipWhiteSpace(); // cont skip on next line
+    }
+
+    else // is token char
+    {
+        back( c );
+    }
+}
+
+sal_Unicode PolicyReader::get()
+{
+    if ('\0' != m_back) // one char push back possible
+    {
+        sal_Unicode c = m_back;
+        m_back = '\0';
+        return c;
+    }
+    else if (m_pos == m_line.getLength()) // provide newline as whitespace
+    {
+        ++m_pos;
+        return '\n';
+    }
+    else if (m_pos > m_line.getLength()) // read new line
+    {
+        sal_Bool eof;
+        oslFileError rc = ::osl_isEndOfFile( m_file, &eof );
+        if (osl_File_E_None != rc)
+            error( u"checking eof failed!" );
+        if (eof)
+            return '\0';
+
+        rc = ::osl_readLine( m_file, reinterpret_cast< sal_Sequence ** >( &m_line ) );
+        if (osl_File_E_None != rc)
+            error( u"read line failed!" );
+        ++m_linepos;
+        if (! m_line.getLength()) // empty line read
+        {
+            m_pos = 1; // read new line next time
+            return '\n';
+        }
+        m_pos = 0;
+    }
+    return (m_line.getConstArray()[ m_pos++ ]);
+}
+
+void PolicyReader::error( std::u16string_view msg )
+{
+    throw RuntimeException(
+        "error processing file \"" + m_fileName +
+        "\" [line " + OUString::number(m_linepos) +
+        ", column " + OUString::number(m_pos) +
+        "] " + msg);
+}
+
+PolicyReader::PolicyReader( OUString fileName, AccessControl & ac )
+    : m_fileName(std::move( fileName ))
+    , m_linepos( 0 )
+    , m_pos( 1 ) // force readline
+    , m_back( '\0' )
+{
+    ac.checkFilePermission( m_fileName, "read" );
+    if (osl_File_E_None != ::osl_openFile( m_fileName.pData, &m_file, osl_File_OpenFlag_Read ))
+    {
+        throw RuntimeException( "cannot open file \"" + m_fileName + "\"!" );
+    }
+}
+
+PolicyReader::~PolicyReader()
+{
+    if ( ::osl_closeFile( m_file ) != osl_File_E_None ) {
+        OSL_ASSERT( false );
+    }
+}
+
+constexpr OUStringLiteral s_grant = u"grant";
+constexpr OUStringLiteral s_user = u"user";
+constexpr OUStringLiteral s_permission = u"permission";
+constexpr OUStringLiteral s_openBrace = u"{";
+constexpr OUStringLiteral s_closingBrace = u"}";
+
+constexpr OUStringLiteral s_filePermission = u"com.sun.star.io.FilePermission";
+constexpr OUStringLiteral s_socketPermission = u"com.sun.star.connection.SocketPermission";
+constexpr OUStringLiteral s_runtimePermission = u"com.sun.star.security.RuntimePermission";
+constexpr OUStringLiteral s_allPermission = u"com.sun.star.security.AllPermission";
+
+
+void FilePolicy::refresh()
+{
+    // read out file (the .../file-name value had originally been set in
+    // cppu::add_access_control_entries (cppuhelper/source/servicefactory.cxx)
+    // depending on various UNO_AC* bootstrap variables that are no longer
+    // supported, so this is effectively dead code):
+    OUString fileName;
+    m_xComponentContext->getValueByName(
+        "/implementations/" + IMPL_NAME + "/file-name" ) >>= fileName;
+    if ( fileName.isEmpty() )
+    {
+        throw RuntimeException(
+            "name of policy file unknown!",
+            getXWeak() );
+    }
+
+    PolicyReader reader( fileName, m_ac );
+
+    // fill these two
+    Sequence< Any > defaultPermissions;
+    t_permissions userPermissions;
+
+    OUString token( reader.getToken() );
+    while (!token.isEmpty())
+    {
+        if ( token != s_grant )
+            reader.error( u"expected >grant< token!" );
+        OUString userId;
+        token = reader.assureToken();
+        if ( token == s_user ) // next token is user-id
+        {
+            userId = reader.assureQuotedToken();
+            token = reader.assureToken();
+        }
+        if ( token != s_openBrace )
+            reader.error( u"expected opening brace >{<!" );
+        token = reader.assureToken();
+        // permissions list
+        while ( token != s_closingBrace )
+        {
+            if ( token != s_permission )
+                reader.error( u"expected >permission< or closing brace >}<!" );
+
+            token = reader.assureToken(); // permission type
+            Any perm;
+            if ( token == s_filePermission ) // FilePermission
+            {
+                OUString url( reader.assureQuotedToken() );
+                reader.assureToken( ',' );
+                OUString actions( reader.assureQuotedToken() );
+                perm <<= io::FilePermission( url, actions );
+            }
+            else if ( token == s_socketPermission ) // SocketPermission
+            {
+                OUString host( reader.assureQuotedToken() );
+                reader.assureToken( ',' );
+                OUString actions( reader.assureQuotedToken() );
+                perm <<= connection::SocketPermission( host, actions );
+            }
+            else if ( token == s_runtimePermission ) // RuntimePermission
+            {
+                OUString name( reader.assureQuotedToken() );
+                perm <<= security::RuntimePermission( name );
+            }
+            else if ( token == s_allPermission ) // AllPermission
+            {
+                perm <<= security::AllPermission();
+            }
+            else
+            {
+                reader.error( u"expected permission type!" );
+            }
+
+            reader.assureToken( ';' );
+
+            // insert
+            if (!userId.isEmpty())
+            {
+                Sequence< Any > perms( userPermissions[ userId ] );
+                sal_Int32 len = perms.getLength();
+                perms.realloc( len +1 );
+                perms.getArray()[ len ] = perm;
+                userPermissions[ userId ] = perms;
+            }
+            else
+            {
+                sal_Int32 len = defaultPermissions.getLength();
+                defaultPermissions.realloc( len +1 );
+                defaultPermissions.getArray()[ len ] = perm;
+            }
+
+            token = reader.assureToken(); // next permissions token
+        }
+
+        reader.assureToken( ';' ); // semi
+        token = reader.getToken(); // next grant token
+    }
+
+    // assign new ones
+    MutexGuard guard( m_aMutex );
+    m_defaultPermissions = defaultPermissions;
+    m_userPermissions = userPermissions;
+}
+
+
+OUString FilePolicy::getImplementationName()
+{
+    return IMPL_NAME;
+}
+
+sal_Bool FilePolicy::supportsService( OUString const & serviceName )
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+Sequence< OUString > FilePolicy::getSupportedServiceNames()
+{
+    return { "com.sun.star.security.Policy" };
+}
+
+} // namespace
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_security_comp_stoc_FilePolicy_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new FilePolicy(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/security/lru_cache.h b/stoc/source/security/lru_cache.h
new file mode 100644
index 0000000000..402b41d587
--- /dev/null
+++ b/stoc/source/security/lru_cache.h
@@ -0,0 +1,210 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_STOC_SOURCE_SECURITY_LRU_CACHE_H
+#define INCLUDED_STOC_SOURCE_SECURITY_LRU_CACHE_H
+
+#include <memory>
+#include <unordered_map>
+
+// __CACHE_DIAGNOSE works only for OUString keys
+#ifdef __CACHE_DIAGNOSE
+#include <osl/diagnose.h>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/string.hxx>
+#include <sal/log.hxx>
+#endif
+
+
+namespace stoc_sec
+{
+
+/** Implementation of a least recently used (lru) cache.
+*/
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+class lru_cache
+{
+    struct Entry
+    {
+        t_key m_key;
+        t_val m_val;
+        Entry * m_pred;
+        Entry * m_succ;
+    };
+    typedef std::unordered_map< t_key, Entry *, t_hashKey, t_equalKey > t_key2element;
+    t_key2element m_key2element;
+    ::std::size_t m_size;
+
+    std::unique_ptr<Entry[]> m_block;
+    mutable Entry * m_head;
+    mutable Entry * m_tail;
+    inline void toFront( Entry * entry ) const;
+
+public:
+    /** Default Ctor.  Does not cache.
+    */
+    inline lru_cache();
+
+    /** Retrieves a pointer to value in cache.  Returns 0, if none was found.
+
+        @param key a key
+        @return pointer to value or 0
+    */
+    inline t_val const * lookup( t_key const & key ) const;
+
+    /** Sets a value to be cached for given key.
+
+        @param key a key
+        @param val a value
+    */
+    inline void set( t_key const & key, t_val const & val );
+
+    /** Sets the number of elements to be cached.  This will clear previous entries.
+
+        @param cacheSize number of elements to be cached
+    */
+    inline void setSize( ::std::size_t size );
+};
+
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+inline void lru_cache< t_key, t_val, t_hashKey, t_equalKey >::setSize(
+    ::std::size_t size )
+{
+    m_key2element.clear();
+    m_block.reset();
+    m_size = size;
+
+    if (0 < m_size)
+    {
+        m_block.reset( new Entry[ m_size ] );
+        m_head = m_block.get();
+        m_tail = m_block.get() + m_size -1;
+        for ( ::std::size_t nPos = m_size; nPos--; )
+        {
+            m_block[ nPos ].m_pred = m_block.get() + nPos -1;
+            m_block[ nPos ].m_succ = m_block.get() + nPos +1;
+        }
+    }
+}
+
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+inline lru_cache< t_key, t_val, t_hashKey, t_equalKey >::lru_cache()
+    : m_size( 0 )
+    , m_block( nullptr )
+    , m_head( nullptr )
+    , m_tail( nullptr )
+{
+}
+
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+inline void lru_cache< t_key, t_val, t_hashKey, t_equalKey >::toFront(
+    Entry * entry ) const
+{
+    if (entry != m_head)
+    {
+        // cut out element
+        if (entry == m_tail)
+        {
+            m_tail = entry->m_pred;
+        }
+        else
+        {
+            entry->m_succ->m_pred = entry->m_pred;
+            entry->m_pred->m_succ = entry->m_succ;
+        }
+        // push to front
+        m_head->m_pred = entry;
+        entry->m_succ = m_head;
+        m_head = entry;
+    }
+}
+
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+inline t_val const * lru_cache< t_key, t_val, t_hashKey, t_equalKey >::lookup(
+    t_key const & key ) const
+{
+    if (0 < m_size)
+    {
+        typename t_key2element::const_iterator const iFind( m_key2element.find( key ) );
+        if (iFind != m_key2element.end())
+        {
+            Entry * entry = iFind->second;
+            toFront( entry );
+#ifdef __CACHE_DIAGNOSE
+            OUStringBuffer buf( 48 );
+            buf.appendAscii( "> retrieved element \"" );
+            buf.append( entry->m_key );
+            buf.appendAscii( "\" from cache" );
+            SAL_INFO("stoc", buf.makeStringAndClear() );
+#endif
+            return &entry->m_val;
+        }
+    }
+    return nullptr;
+}
+
+template< typename t_key, typename t_val, typename t_hashKey, typename t_equalKey >
+inline void lru_cache< t_key, t_val, t_hashKey, t_equalKey >::set(
+    t_key const & key, t_val const & val )
+{
+    if (0 < m_size)
+    {
+        typename t_key2element::const_iterator const iFind( m_key2element.find( key ) );
+
+        Entry * entry;
+        if (iFind == m_key2element.end())
+        {
+            entry = m_tail; // erase last element
+#ifdef __CACHE_DIAGNOSE
+            if (entry->m_key.getLength())
+            {
+                OUStringBuffer buf( 48 );
+                buf.appendAscii( "> kicking element \"" );
+                buf.append( entry->m_key );
+                buf.appendAscii( "\" from cache" );
+                SAL_INFO("stoc", buf.makeStringAndClear() );
+            }
+#endif
+            m_key2element.erase( entry->m_key );
+            entry->m_key = key;
+            ::std::pair< typename t_key2element::iterator, bool > insertion(
+                m_key2element.emplace( key, entry ) );
+            OSL_ENSURE( insertion.second, "### inserting new cache entry failed?!" );
+        }
+        else
+        {
+            entry = iFind->second;
+#ifdef __CACHE_DIAGNOSE
+            OUStringBuffer buf( 48 );
+            buf.appendAscii( "> replacing element \"" );
+            buf.append( entry->m_key );
+            buf.appendAscii( "\" in cache" );
+            SAL_INFO("stoc", buf.makeStringAndClear() );
+#endif
+        }
+        entry->m_val = val;
+        toFront( entry );
+    }
+}
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/security/permissions.cxx b/stoc/source/security/permissions.cxx
new file mode 100644
index 0000000000..48a1f907f0
--- /dev/null
+++ b/stoc/source/security/permissions.cxx
@@ -0,0 +1,601 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <vector>
+
+#include <osl/process.h>
+#include <osl/socket.hxx>
+#include <osl/mutex.hxx>
+
+#include <rtl/string.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+#include <o3tl/string_view.hxx>
+
+#include <com/sun/star/security/RuntimePermission.hpp>
+#include <com/sun/star/security/AllPermission.hpp>
+#include <com/sun/star/io/FilePermission.hpp>
+#include <com/sun/star/connection/SocketPermission.hpp>
+#include <com/sun/star/security/AccessControlException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+
+#include "permissions.h"
+
+using namespace ::osl;
+using namespace ::com::sun::star;
+using namespace css::uno;
+
+namespace stoc_sec
+{
+
+
+static sal_Int32 makeMask(
+    OUString const & items, char const * const * strings )
+{
+    sal_Int32 mask = 0;
+
+    sal_Int32 n = 0;
+    do
+    {
+        OUString item( o3tl::trim(o3tl::getToken(items, 0, ',', n )) );
+        if ( item.isEmpty())
+            continue;
+        sal_Int32 nPos = 0;
+        while (strings[ nPos ])
+        {
+            if (item.equalsAscii( strings[ nPos ] ))
+            {
+                mask |= (0x80000000 >> nPos);
+                break;
+            }
+            ++nPos;
+        }
+#if OSL_DEBUG_LEVEL > 0
+        if (! strings[ nPos ])
+        {
+            SAL_WARN("stoc", "ignoring unknown socket action: " << item );
+        }
+#endif
+    }
+    while (n >= 0); // all items
+    return mask;
+}
+
+static OUString makeStrings(
+    sal_Int32 mask, char const * const * strings )
+{
+    OUStringBuffer buf( 48 );
+    while (mask)
+    {
+        if (0x80000000 & mask)
+        {
+            buf.appendAscii( *strings );
+            if ((mask << 1) != 0) // more items following
+                buf.append( ',' );
+        }
+        mask = (mask << 1);
+        ++strings;
+    }
+    return buf.makeStringAndClear();
+}
+
+namespace {
+
+class SocketPermission : public Permission
+{
+    static char const * s_actions [];
+    sal_Int32 m_actions;
+
+    OUString m_host;
+    sal_Int32 m_lowerPort;
+    sal_Int32 m_upperPort;
+    mutable OUString m_ip;
+    mutable bool m_resolveErr;
+    mutable bool m_resolvedHost;
+    bool m_wildCardHost;
+
+    inline bool resolveHost() const;
+
+public:
+    SocketPermission(
+        connection::SocketPermission const & perm,
+        ::rtl::Reference< Permission > const & next = ::rtl::Reference< Permission >() );
+    virtual bool implies( Permission const & perm ) const override;
+    virtual OUString toString() const override;
+};
+
+}
+
+char const * SocketPermission::s_actions [] = { "accept", "connect", "listen", "resolve", nullptr };
+
+SocketPermission::SocketPermission(
+    connection::SocketPermission const & perm,
+    ::rtl::Reference< Permission > const & next )
+    : Permission( SOCKET, next )
+    , m_actions( makeMask( perm.Actions, s_actions ) )
+    , m_host( perm.Host )
+    , m_lowerPort( 0 )
+    , m_upperPort( 65535 )
+    , m_resolveErr( false )
+    , m_resolvedHost( false )
+    , m_wildCardHost( !perm.Host.isEmpty() && '*' == perm.Host.pData->buffer[ 0 ] )
+{
+    if (0xe0000000 & m_actions) // if any (except resolve) is given => resolve implied
+        m_actions |= 0x10000000;
+
+    // separate host from portrange
+    sal_Int32 colon = m_host.indexOf( ':' );
+    if (colon < 0) // port [range] not given
+        return;
+
+    sal_Int32 minus = m_host.indexOf( '-', colon +1 );
+    if (minus < 0)
+    {
+        m_lowerPort = m_upperPort = o3tl::toInt32(m_host.subView( colon +1 ));
+    }
+    else if (minus == (colon +1)) // -N
+    {
+        m_upperPort = o3tl::toInt32(m_host.subView( minus +1 ));
+    }
+    else if (minus == (m_host.getLength() -1)) // N-
+    {
+        m_lowerPort = o3tl::toInt32(m_host.subView( colon +1, m_host.getLength() -1 -colon -1 ));
+    }
+    else // A-B
+    {
+        m_lowerPort = o3tl::toInt32(m_host.subView( colon +1, minus - colon -1 ));
+        m_upperPort = o3tl::toInt32(m_host.subView( minus +1 ));
+    }
+    m_host = m_host.copy( 0, colon );
+}
+
+inline bool SocketPermission::resolveHost() const
+{
+    if (m_resolveErr)
+        return false;
+
+    if (! m_resolvedHost)
+    {
+        // dns lookup
+        SocketAddr addr;
+        SocketAddr::resolveHostname( m_host, addr );
+        OUString ip;
+        m_resolveErr = (::osl_Socket_Ok != ::osl_getDottedInetAddrOfSocketAddr(
+            addr.getHandle(), &ip.pData ));
+        if (m_resolveErr)
+            return false;
+
+        MutexGuard guard( Mutex::getGlobalMutex() );
+        if (! m_resolvedHost)
+        {
+            m_ip = ip;
+            m_resolvedHost = true;
+        }
+    }
+    return m_resolvedHost;
+}
+
+bool SocketPermission::implies( Permission const & perm ) const
+{
+    // check type
+    if (SOCKET != perm.m_type)
+        return false;
+    SocketPermission const & demanded = static_cast< SocketPermission const & >( perm );
+
+    // check actions
+    if ((m_actions & demanded.m_actions) != demanded.m_actions)
+        return false;
+
+    // check ports
+    if (demanded.m_lowerPort < m_lowerPort)
+        return false;
+    if (demanded.m_upperPort > m_upperPort)
+        return false;
+
+    // quick check host (DNS names: RFC 1034/1035)
+    if (m_host.equalsIgnoreAsciiCase( demanded.m_host ))
+        return true;
+    // check for host wildcards
+    if (m_wildCardHost)
+    {
+        OUString const & demanded_host = demanded.m_host;
+        if (demanded_host.getLength() <= m_host.getLength())
+            return false;
+        sal_Int32 len = m_host.getLength() -1; // skip star
+        return (0 == ::rtl_ustr_compareIgnoreAsciiCase_WithLength(
+            demanded_host.getStr() + demanded_host.getLength() - len, len,
+            m_host.pData->buffer + 1, len ));
+    }
+    if (demanded.m_wildCardHost)
+        return false;
+
+    // compare IP addresses
+    if (! resolveHost())
+        return false;
+    if (! demanded.resolveHost())
+        return false;
+    return m_ip == demanded.m_ip;
+}
+
+OUString SocketPermission::toString() const
+{
+    OUStringBuffer buf( 48 );
+    // host
+    buf.append( "com.sun.star.connection.SocketPermission (host=\""
+        + m_host );
+    if (m_resolvedHost)
+    {
+        buf.append( "[" + m_ip  + "]" );
+    }
+    // port
+    if (0 != m_lowerPort || 65535 != m_upperPort)
+    {
+        buf.append( ':' );
+        if (m_lowerPort > 0)
+            buf.append( m_lowerPort );
+        if (m_upperPort > m_lowerPort)
+        {
+            buf.append( '-' );
+            if (m_upperPort < 65535)
+                buf.append( m_upperPort );
+        }
+    }
+    // actions
+    buf.append( "\", actions=\""
+        + makeStrings( m_actions, s_actions )
+        + "\")" );
+    return buf.makeStringAndClear();
+}
+
+namespace {
+
+class FilePermission : public Permission
+{
+    static char const * s_actions [];
+    sal_Int32 m_actions;
+
+    OUString m_url;
+    bool m_allFiles;
+
+public:
+    FilePermission(
+        io::FilePermission const & perm,
+        ::rtl::Reference< Permission > const & next = ::rtl::Reference< Permission >() );
+    virtual bool implies( Permission const & perm ) const override;
+    virtual OUString toString() const override;
+};
+
+}
+
+char const * FilePermission::s_actions [] = { "read", "write", "execute", "delete", nullptr };
+
+static OUString const & getWorkingDir()
+{
+    static OUString s_workingDir = []() {
+        OUString workingDir;
+        ::osl_getProcessWorkingDir(&workingDir.pData);
+        return workingDir;
+    }();
+    return s_workingDir;
+}
+
+FilePermission::FilePermission(
+    io::FilePermission const & perm,
+    ::rtl::Reference< Permission > const & next )
+    : Permission( FILE, next )
+    , m_actions( makeMask( perm.Actions, s_actions ) )
+    , m_url( perm.URL )
+    , m_allFiles( perm.URL == "<<ALL FILES>>" )
+{
+    if ( m_allFiles)
+        return;
+
+    if ( m_url == "*" )
+    {
+        m_url = getWorkingDir() + "/*";
+    }
+    else if ( m_url == "-" )
+    {
+        m_url = getWorkingDir() + "/-";
+    }
+    else if (!m_url.startsWith("file:///"))
+    {
+        // relative path
+        OUString out;
+        oslFileError rc = ::osl_getAbsoluteFileURL(
+            getWorkingDir().pData, perm.URL.pData, &out.pData );
+        m_url = (osl_File_E_None == rc ? out : perm.URL); // fallback
+    }
+#ifdef _WIN32
+    // correct win drive letters
+    if (9 < m_url.getLength() && '|' == m_url[ 9 ]) // file:///X|
+    {
+        constexpr OUStringLiteral s_colon = u":";
+        // common case in API is a ':' (sal), so convert '|' to ':'
+        m_url = m_url.replaceAt( 9, 1, s_colon );
+    }
+#endif
+}
+
+bool FilePermission::implies( Permission const & perm ) const
+{
+    // check type
+    if (FILE != perm.m_type)
+        return false;
+    FilePermission const & demanded = static_cast< FilePermission const & >( perm );
+
+    // check actions
+    if ((m_actions & demanded.m_actions) != demanded.m_actions)
+        return false;
+
+    // check url
+    if (m_allFiles)
+        return true;
+    if (demanded.m_allFiles)
+        return false;
+
+#ifdef _WIN32
+    if (m_url.equalsIgnoreAsciiCase( demanded.m_url ))
+        return true;
+#else
+    if (m_url == demanded.m_url )
+        return true;
+#endif
+    if (m_url.getLength() > demanded.m_url.getLength())
+        return false;
+    // check /- wildcard: all files and recursive in that path
+    if (m_url.endsWith("/-"))
+    {
+        // demanded url must start with granted path (including path trailing path sep)
+        sal_Int32 len = m_url.getLength() -1;
+#ifdef _WIN32
+        return (0 == ::rtl_ustr_compareIgnoreAsciiCase_WithLength(
+                    demanded.m_url.pData->buffer, len, m_url.pData->buffer, len ));
+#else
+        return (0 == ::rtl_ustr_reverseCompare_WithLength(
+                    demanded.m_url.pData->buffer, len, m_url.pData->buffer, len ));
+#endif
+    }
+    // check /* wildcard: all files in that path (not recursive!)
+    if (m_url.endsWith("/*"))
+    {
+        // demanded url must start with granted path (including path trailing path sep)
+        sal_Int32 len = m_url.getLength() -1;
+#ifdef _WIN32
+        return ((0 == ::rtl_ustr_compareIgnoreAsciiCase_WithLength(
+                     demanded.m_url.pData->buffer, len, m_url.pData->buffer, len )) &&
+                (0 > demanded.m_url.indexOf( '/', len ))); // in addition, no deeper paths
+#else
+        return ((0 == ::rtl_ustr_reverseCompare_WithLength(
+                     demanded.m_url.pData->buffer, len, m_url.pData->buffer, len )) &&
+                (0 > demanded.m_url.indexOf( '/', len ))); // in addition, no deeper paths
+#endif
+    }
+    return false;
+}
+
+OUString FilePermission::toString() const
+{
+    return
+        // url
+        "com.sun.star.io.FilePermission (url=\"" + m_url
+        // actions
+        + "\", actions=\"" + makeStrings( m_actions, s_actions ) + "\")";
+}
+
+namespace {
+
+class RuntimePermission : public Permission
+{
+    OUString m_name;
+
+public:
+    RuntimePermission(
+        security::RuntimePermission const & perm,
+        ::rtl::Reference< Permission > const & next = ::rtl::Reference< Permission >() )
+        : Permission( RUNTIME, next )
+        , m_name( perm.Name )
+        {}
+    virtual bool implies( Permission const & perm ) const override;
+    virtual OUString toString() const override;
+};
+
+}
+
+bool RuntimePermission::implies( Permission const & perm ) const
+{
+    // check type
+    if (RUNTIME != perm.m_type)
+        return false;
+    RuntimePermission const & demanded = static_cast< RuntimePermission const & >( perm );
+
+    // check name
+    return m_name == demanded.m_name;
+}
+
+OUString RuntimePermission::toString() const
+{
+    return "com.sun.star.security.RuntimePermission (name=\"" +
+        m_name + "\")";
+}
+
+
+bool AllPermission::implies( Permission const & ) const
+{
+    return true;
+}
+
+OUString AllPermission::toString() const
+{
+    return "com.sun.star.security.AllPermission";
+}
+
+
+PermissionCollection::PermissionCollection(
+    Sequence< Any > const & permissions, PermissionCollection const & addition )
+    : m_head( addition.m_head )
+{
+    Any const * perms = permissions.getConstArray();
+    for ( sal_Int32 nPos = permissions.getLength(); nPos--; )
+    {
+        Any const & perm = perms[ nPos ];
+        Type const & perm_type = perm.getValueType();
+
+        // supported permission types
+        if (perm_type.equals( cppu::UnoType<io::FilePermission>::get()))
+        {
+            m_head = new FilePermission(
+                *static_cast< io::FilePermission const * >( perm.pData ), m_head );
+        }
+        else if (perm_type.equals( cppu::UnoType<connection::SocketPermission>::get()))
+        {
+            m_head = new SocketPermission(
+                *static_cast< connection::SocketPermission const * >( perm.pData ), m_head );
+        }
+        else if (perm_type.equals( cppu::UnoType<security::RuntimePermission>::get()))
+        {
+            m_head = new RuntimePermission(
+                *static_cast< security::RuntimePermission const * >( perm.pData ), m_head );
+        }
+        else if (perm_type.equals( cppu::UnoType<security::AllPermission>::get()))
+        {
+            m_head = new AllPermission( m_head );
+        }
+        else
+        {
+            throw RuntimeException( "checking for unsupported permission type: " + perm_type.getTypeName() );
+        }
+    }
+}
+#ifdef __DIAGNOSE
+
+Sequence< OUString > PermissionCollection::toStrings() const
+{
+    std::vector< OUString > strings;
+    strings.reserve( 8 );
+    for ( Permission * perm = m_head.get(); perm; perm = perm->m_next.get() )
+    {
+        strings.push_back( perm->toString() );
+    }
+    return Sequence< OUString >( strings.data(), strings.size() );
+}
+#endif
+
+static bool implies(
+    ::rtl::Reference< Permission > const & head, Permission const & demanded )
+{
+    for ( Permission * perm = head.get(); perm; perm = perm->m_next.get() )
+    {
+        if (perm->implies( demanded ))
+            return true;
+    }
+    return false;
+}
+
+#ifdef __DIAGNOSE
+
+static void demanded_diag(
+    Permission const & perm )
+{
+    OUStringBuffer buf( 48 );
+    buf.append( "demanding " );
+    buf.append( perm.toString() );
+    buf.append( " => ok." );
+    OString str(
+        OUStringToOString( buf.makeStringAndClear(), RTL_TEXTENCODING_ASCII_US ) );
+    SAL_INFO("stoc",( "%s", str.getStr() );
+}
+#endif
+
+static void throwAccessControlException(
+    Permission const & perm, Any const & demanded_perm )
+{
+    throw security::AccessControlException(
+        "access denied: " + perm.toString(),
+        Reference< XInterface >(), demanded_perm );
+}
+
+void PermissionCollection::checkPermission( Any const & perm ) const
+{
+    Type const & demanded_type = perm.getValueType();
+
+    // supported permission types
+    // stack object of SimpleReferenceObject are ok, as long as they are not
+    // assigned to a ::rtl::Reference<> (=> delete this)
+    if (demanded_type.equals( cppu::UnoType<io::FilePermission>::get()))
+    {
+        FilePermission demanded(
+            *static_cast< io::FilePermission const * >( perm.pData ) );
+        if (implies( m_head, demanded ))
+        {
+#ifdef __DIAGNOSE
+            demanded_diag( demanded );
+#endif
+            return;
+        }
+        throwAccessControlException( demanded, perm );
+    }
+    else if (demanded_type.equals( cppu::UnoType<connection::SocketPermission>::get()))
+    {
+        SocketPermission demanded(
+            *static_cast< connection::SocketPermission const * >( perm.pData ) );
+        if (implies( m_head, demanded ))
+        {
+#ifdef __DIAGNOSE
+            demanded_diag( demanded );
+#endif
+            return;
+        }
+        throwAccessControlException( demanded, perm );
+    }
+    else if (demanded_type.equals( cppu::UnoType<security::RuntimePermission>::get()))
+    {
+        RuntimePermission demanded(
+            *static_cast< security::RuntimePermission const * >( perm.pData ) );
+        if (implies( m_head, demanded ))
+        {
+#ifdef __DIAGNOSE
+            demanded_diag( demanded );
+#endif
+            return;
+        }
+        throwAccessControlException( demanded, perm );
+    }
+    else if (demanded_type.equals( cppu::UnoType<security::AllPermission>::get()))
+    {
+        AllPermission demanded;
+        if (implies( m_head, demanded ))
+        {
+#ifdef __DIAGNOSE
+            demanded_diag( demanded );
+#endif
+            return;
+        }
+        throwAccessControlException( demanded, perm );
+    }
+    else
+    {
+        throw RuntimeException( "checking for unsupported permission type: " + demanded_type.getTypeName() );
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/security/permissions.h b/stoc/source/security/permissions.h
new file mode 100644
index 0000000000..99c5584635
--- /dev/null
+++ b/stoc/source/security/permissions.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_STOC_SOURCE_SECURITY_PERMISSIONS_H
+#define INCLUDED_STOC_SOURCE_SECURITY_PERMISSIONS_H
+
+#include <rtl/ref.hxx>
+#include <rtl/ustring.hxx>
+#include <salhelper/simplereferenceobject.hxx>
+#include <utility>
+
+namespace com::sun::star::uno { class Any; }
+namespace com::sun::star::uno { template <class E> class Sequence; }
+
+namespace stoc_sec
+{
+
+class Permission : public ::salhelper::SimpleReferenceObject
+{
+public:
+    ::rtl::Reference< Permission > m_next;
+    // mode
+    enum t_type { ALL, RUNTIME, SOCKET, FILE } m_type;
+
+    Permission(
+        t_type type,
+        ::rtl::Reference< Permission > next )
+        : m_next(std::move( next ))
+        , m_type( type )
+        {}
+
+    virtual bool implies( Permission const & perm ) const = 0;
+    virtual OUString toString() const = 0;
+};
+
+class AllPermission : public Permission
+{
+public:
+    explicit AllPermission(
+        ::rtl::Reference< Permission > const & next = ::rtl::Reference< Permission >() )
+        : Permission( ALL, next )
+        {}
+
+    virtual bool implies( Permission const & ) const override;
+    virtual OUString toString() const override;
+};
+
+
+class PermissionCollection
+{
+    ::rtl::Reference< Permission > m_head;
+public:
+    PermissionCollection()
+        {}
+    explicit PermissionCollection( ::rtl::Reference< Permission > single )
+        : m_head(std::move( single ))
+        {}
+    PermissionCollection(
+        css::uno::Sequence< css::uno::Any > const & permissions,
+        PermissionCollection const & addition = PermissionCollection() );
+#ifdef __DIAGNOSE
+    css::uno::Sequence< OUString > toStrings() const;
+#endif
+    void checkPermission( css::uno::Any const & perm ) const;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/servicemanager/servicemanager.cxx b/stoc/source/servicemanager/servicemanager.cxx
new file mode 100644
index 0000000000..c61e23cf85
--- /dev/null
+++ b/stoc/source/servicemanager/servicemanager.cxx
@@ -0,0 +1,1476 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <o3tl/any.hxx>
+#include <osl/mutex.hxx>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/weakref.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <comphelper/sequence.hxx>
+
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <com/sun/star/lang/XMultiComponentFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+#include <com/sun/star/lang/XSingleComponentFactory.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XEventListener.hpp>
+#include <com/sun/star/lang/DisposedException.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/registry/XRegistryKey.hpp>
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/container/XSet.hpp>
+#include <com/sun/star/container/XElementAccess.hpp>
+#include <com/sun/star/container/XEnumeration.hpp>
+#include <com/sun/star/container/XContentEnumerationAccess.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+
+#include <iterator>
+#include <mutex>
+#include <string_view>
+#include <unordered_map>
+#include <unordered_set>
+#include <utility>
+
+using namespace com::sun::star;
+using namespace css::uno;
+using namespace css::beans;
+using namespace css::registry;
+using namespace css::lang;
+using namespace css::container;
+using namespace cppu;
+using namespace osl;
+
+namespace {
+
+Sequence< OUString > retrieveAsciiValueList(
+    const Reference< XSimpleRegistry > &xReg, const OUString &keyName )
+{
+    Reference< XEnumerationAccess > xAccess( xReg, UNO_QUERY );
+    Sequence< OUString > seq;
+    if( xAccess.is() )
+    {
+        Reference< XEnumeration > xEnum = xAccess->createEnumeration();
+        while( xEnum.is() && xEnum->hasMoreElements() )
+        {
+            Reference< XSimpleRegistry > xTempReg;
+            xEnum->nextElement() >>= xTempReg;
+            if( xTempReg.is() )
+            {
+                const Sequence< OUString > seq2 = retrieveAsciiValueList( xTempReg, keyName );
+
+                if( seq2.hasElements() )
+                {
+                    sal_Int32 n1Len = seq.getLength();
+                    sal_Int32 n2Len = seq2.getLength();
+
+                    seq.realloc( n1Len + n2Len );
+                    std::copy(seq2.begin(), seq2.end(), std::next(seq.getArray(), n1Len));
+                }
+            }
+        }
+    }
+    else if( xReg.is () )
+    {
+        try
+        {
+            Reference< XRegistryKey > rRootKey = xReg->getRootKey();
+            if( rRootKey.is() )
+            {
+                Reference<XRegistryKey > xKey = rRootKey->openKey(keyName);
+                if( xKey.is() )
+                {
+                    seq = xKey->getAsciiListValue();
+                }
+            }
+        }
+        catch( InvalidRegistryException & )
+        {
+        }
+        catch (InvalidValueException &)
+        {
+        }
+    }
+    return seq;
+}
+
+/*****************************************************************************
+    Enumeration by ServiceName
+*****************************************************************************/
+
+typedef std::unordered_set< Reference<XInterface > > HashSet_Ref;
+
+
+class ServiceEnumeration_Impl : public WeakImplHelper< XEnumeration >
+{
+public:
+    explicit ServiceEnumeration_Impl( const Sequence< Reference<XInterface > > & rFactories )
+        : aFactories( rFactories )
+        , nIt( 0 )
+        {}
+
+    // XEnumeration
+    sal_Bool SAL_CALL hasMoreElements() override;
+    Any SAL_CALL nextElement() override;
+private:
+    std::mutex                          aMutex;
+    Sequence< Reference<XInterface > >  aFactories;
+    sal_Int32                           nIt;
+};
+
+// XEnumeration
+sal_Bool ServiceEnumeration_Impl::hasMoreElements()
+{
+    std::scoped_lock aGuard( aMutex );
+    return nIt != aFactories.getLength();
+}
+
+// XEnumeration
+Any ServiceEnumeration_Impl::nextElement()
+{
+    std::scoped_lock aGuard( aMutex );
+    if( nIt == aFactories.getLength() )
+        throw NoSuchElementException("no more elements");
+
+    return Any( &aFactories.getConstArray()[nIt++], cppu::UnoType<XInterface>::get());
+}
+
+
+class PropertySetInfo_Impl : public WeakImplHelper< beans::XPropertySetInfo >
+{
+    Sequence< beans::Property > m_properties;
+
+public:
+    explicit PropertySetInfo_Impl( Sequence< beans::Property > const & properties )
+        : m_properties( properties )
+        {}
+
+    // XPropertySetInfo impl
+    virtual Sequence< beans::Property > SAL_CALL getProperties() override;
+    virtual beans::Property SAL_CALL getPropertyByName( OUString const & name ) override;
+    virtual sal_Bool SAL_CALL hasPropertyByName( OUString const & name ) override;
+};
+
+Sequence< beans::Property > PropertySetInfo_Impl::getProperties()
+{
+    return m_properties;
+}
+
+beans::Property PropertySetInfo_Impl::getPropertyByName( OUString const & name )
+{
+    beans::Property const * p = m_properties.getConstArray();
+    for ( sal_Int32 nPos = m_properties.getLength(); nPos--; )
+    {
+        if (p[ nPos ].Name == name)
+            return p[ nPos ];
+    }
+    throw beans::UnknownPropertyException(
+        "unknown property: " + name );
+}
+
+sal_Bool PropertySetInfo_Impl::hasPropertyByName( OUString const & name )
+{
+    return std::any_of(std::cbegin(m_properties), std::cend(m_properties),
+        [&name](const beans::Property& rProp) { return rProp.Name == name; });
+}
+
+
+/*****************************************************************************
+    Enumeration by implementation
+*****************************************************************************/
+class ImplementationEnumeration_Impl : public WeakImplHelper< XEnumeration >
+{
+public:
+    explicit ImplementationEnumeration_Impl( HashSet_Ref xImplementationMap )
+        : aImplementationMap(std::move( xImplementationMap ))
+        , aIt( aImplementationMap.begin() )
+        {}
+
+    // XEnumeration
+    virtual sal_Bool SAL_CALL hasMoreElements() override;
+    virtual Any SAL_CALL nextElement() override;
+
+private:
+    std::mutex                      aMutex;
+    HashSet_Ref                     aImplementationMap;
+    HashSet_Ref::iterator           aIt;
+};
+
+// XEnumeration
+sal_Bool ImplementationEnumeration_Impl::hasMoreElements()
+{
+    std::scoped_lock aGuard( aMutex );
+    return aIt != aImplementationMap.end();
+}
+
+// XEnumeration
+Any ImplementationEnumeration_Impl::nextElement()
+{
+    std::scoped_lock aGuard( aMutex );
+    if( aIt == aImplementationMap.end() )
+        throw NoSuchElementException("no more elements");
+
+    Any ret( &(*aIt), cppu::UnoType<XInterface>::get());
+    ++aIt;
+    return ret;
+}
+
+/*****************************************************************************
+    Hash tables
+*****************************************************************************/
+typedef std::unordered_set
+<
+    OUString
+> HashSet_OWString;
+
+typedef std::unordered_multimap
+<
+    OUString,
+    Reference<XInterface >
+> HashMultimap_OWString_Interface;
+
+typedef std::unordered_map
+<
+    OUString,
+    Reference<XInterface >
+> HashMap_OWString_Interface;
+
+/*****************************************************************************
+    class OServiceManager_Listener
+*****************************************************************************/
+class OServiceManager_Listener : public WeakImplHelper< XEventListener >
+{
+private:
+    WeakReference<XSet > xSMgr;
+
+public:
+    explicit OServiceManager_Listener( const Reference<XSet > & rSMgr )
+        : xSMgr( rSMgr )
+        {}
+
+    // XEventListener
+    virtual void SAL_CALL disposing(const EventObject & rEvt ) override;
+};
+
+void OServiceManager_Listener::disposing(const EventObject & rEvt )
+{
+    Reference<XSet > x( xSMgr );
+    if( !x.is() )
+        return;
+
+    try
+    {
+        x->remove( Any( &rEvt.Source, cppu::UnoType<XInterface>::get()) );
+    }
+    catch( const IllegalArgumentException & )
+    {
+        OSL_FAIL( "IllegalArgumentException caught" );
+    }
+    catch( const NoSuchElementException & )
+    {
+        OSL_FAIL( "NoSuchElementException caught" );
+    }
+}
+
+
+/*****************************************************************************
+    class OServiceManager
+*****************************************************************************/
+
+typedef WeakComponentImplHelper<
+    lang::XMultiServiceFactory, lang::XMultiComponentFactory, lang::XServiceInfo,
+    lang::XInitialization,
+    container::XSet, container::XContentEnumerationAccess,
+    beans::XPropertySet > t_OServiceManager_impl;
+
+class OServiceManager
+    : public cppu::BaseMutex
+    , public t_OServiceManager_impl
+{
+public:
+    explicit OServiceManager( Reference< XComponentContext > const & xContext );
+
+    // XInitialization
+    void SAL_CALL initialize( Sequence< Any > const & args ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XMultiComponentFactory
+    virtual Reference< XInterface > SAL_CALL createInstanceWithContext(
+        OUString const & rServiceSpecifier, Reference< XComponentContext > const & xContext ) override;
+    virtual Reference< XInterface > SAL_CALL createInstanceWithArgumentsAndContext(
+        OUString const & rServiceSpecifier,
+        Sequence< Any > const & rArguments,
+        Reference< XComponentContext > const & xContext ) override;
+//      virtual Sequence< OUString > SAL_CALL getAvailableServiceNames()
+//          throw (RuntimeException);
+
+    // XMultiServiceFactory
+    virtual Sequence< OUString > SAL_CALL getAvailableServiceNames() override;
+    virtual Reference<XInterface > SAL_CALL createInstance(const OUString &) override;
+    virtual Reference<XInterface > SAL_CALL createInstanceWithArguments(const OUString &, const Sequence<Any >& Arguments) override;
+
+    // The same as the getAvailableServiceNames, but only unique names
+    Sequence< OUString > getUniqueAvailableServiceNames(
+        HashSet_OWString & aNameSet );
+
+    // XElementAccess
+    virtual Type SAL_CALL getElementType() override;
+    virtual sal_Bool SAL_CALL hasElements() override;
+
+    // XEnumerationAccess
+    virtual Reference<XEnumeration > SAL_CALL createEnumeration() override;
+
+    // XSet
+    virtual sal_Bool SAL_CALL has( const Any & Element ) override;
+    virtual void SAL_CALL insert( const Any & Element ) override;
+    virtual void SAL_CALL remove( const Any & Element ) override;
+
+    // XContentEnumerationAccess
+    //Sequence< OUString >          getAvailableServiceNames() throw( (Exception) );
+    virtual Reference<XEnumeration > SAL_CALL createContentEnumeration(const OUString& aServiceName) override;
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+
+    // XPropertySet
+    Reference<XPropertySetInfo > SAL_CALL getPropertySetInfo() override;
+    void SAL_CALL setPropertyValue(const OUString& PropertyName, const Any& aValue) override;
+    Any SAL_CALL getPropertyValue(const OUString& PropertyName) override;
+    void SAL_CALL addPropertyChangeListener(const OUString& PropertyName, const Reference<XPropertyChangeListener >& aListener) override;
+    void SAL_CALL removePropertyChangeListener(const OUString& PropertyName, const Reference<XPropertyChangeListener >& aListener) override;
+    void SAL_CALL addVetoableChangeListener(const OUString& PropertyName, const Reference<XVetoableChangeListener >& aListener) override;
+    void SAL_CALL removeVetoableChangeListener(const OUString& PropertyName, const Reference<XVetoableChangeListener >& aListener) override;
+
+protected:
+    bool is_disposed() const;
+    void check_undisposed() const;
+    virtual void SAL_CALL disposing() override;
+
+    bool haveFactoryWithThisImplementation(const OUString& aImplName);
+
+    virtual Sequence< Reference< XInterface > > queryServiceFactories(
+        const OUString& aServiceName, Reference< XComponentContext > const & xContext );
+
+    Reference< XComponentContext >  m_xContext;
+
+    Reference< beans::XPropertySetInfo > m_xPropertyInfo;
+
+    // factories which have been loaded and not inserted( by XSet::insert)
+    // are remembered by this set.
+    HashSet_Ref m_SetLoadedFactories;
+private:
+
+    Reference<XEventListener >      getFactoryListener();
+
+
+    HashMultimap_OWString_Interface m_ServiceMap;
+    HashSet_Ref                     m_ImplementationMap;
+    HashMap_OWString_Interface      m_ImplementationNameMap;
+    Reference<XEventListener >      xFactoryListener;
+    bool                            m_bInDisposing;
+};
+
+
+bool OServiceManager::is_disposed() const
+{
+    // ought to be guarded by m_mutex:
+    return (m_bInDisposing || rBHelper.bDisposed);
+}
+
+
+void OServiceManager::check_undisposed() const
+{
+    if (is_disposed())
+    {
+        throw lang::DisposedException(
+            "service manager instance has already been disposed!",
+            const_cast<OServiceManager *>(this)->getXWeak() );
+    }
+}
+
+
+typedef WeakComponentImplHelper<
+    lang::XMultiServiceFactory, lang::XMultiComponentFactory, lang::XServiceInfo,
+    container::XSet, container::XContentEnumerationAccess,
+    beans::XPropertySet > t_OServiceManagerWrapper_impl;
+
+class OServiceManagerWrapper : public cppu::BaseMutex, public t_OServiceManagerWrapper_impl
+{
+    Reference< XComponentContext > m_xContext;
+    Reference< XMultiComponentFactory > m_root;
+    Reference< XMultiComponentFactory > const & getRoot() const
+    {
+        if (! m_root.is())
+        {
+            throw lang::DisposedException(
+                "service manager instance has already been disposed!" );
+        }
+        return m_root;
+    }
+
+protected:
+    virtual void SAL_CALL disposing() override;
+
+public:
+    explicit OServiceManagerWrapper(
+        Reference< XComponentContext > const & xContext );
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override
+        { return Reference< XServiceInfo >(getRoot(), UNO_QUERY_THROW)->getImplementationName(); }
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override
+        { return Reference< XServiceInfo >(getRoot(), UNO_QUERY_THROW)->supportsService( ServiceName ); }
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override
+        { return Reference< XServiceInfo >(getRoot(), UNO_QUERY_THROW)->getSupportedServiceNames(); }
+
+    // XMultiComponentFactory
+    virtual Reference< XInterface > SAL_CALL createInstanceWithContext(
+        OUString const & rServiceSpecifier, Reference< XComponentContext > const & xContext ) override
+        { return getRoot()->createInstanceWithContext( rServiceSpecifier, xContext ); }
+    virtual Reference< XInterface > SAL_CALL createInstanceWithArgumentsAndContext(
+        OUString const & rServiceSpecifier,
+        Sequence< Any > const & rArguments,
+        Reference< XComponentContext > const & xContext ) override
+        { return getRoot()->createInstanceWithArgumentsAndContext( rServiceSpecifier, rArguments, xContext ); }
+//      virtual Sequence< OUString > SAL_CALL getAvailableServiceNames()
+//          throw (RuntimeException);
+
+    // XMultiServiceFactory
+    virtual Sequence< OUString > SAL_CALL getAvailableServiceNames() override
+        { return getRoot()->getAvailableServiceNames(); }
+    virtual Reference<XInterface > SAL_CALL createInstance(const OUString & name) override
+        { return getRoot()->createInstanceWithContext( name, m_xContext ); }
+    virtual Reference<XInterface > SAL_CALL createInstanceWithArguments(const OUString & name, const Sequence<Any >& Arguments) override
+        { return getRoot()->createInstanceWithArgumentsAndContext( name, Arguments, m_xContext ); }
+
+    // XElementAccess
+    virtual Type SAL_CALL getElementType() override
+        { return Reference< XElementAccess >(getRoot(), UNO_QUERY_THROW)->getElementType(); }
+    virtual sal_Bool SAL_CALL hasElements() override
+        { return Reference< XElementAccess >(getRoot(), UNO_QUERY_THROW)->hasElements(); }
+
+    // XEnumerationAccess
+    virtual Reference<XEnumeration > SAL_CALL createEnumeration() override
+        { return Reference< XEnumerationAccess >(getRoot(), UNO_QUERY_THROW)->createEnumeration(); }
+
+    // XSet
+    virtual sal_Bool SAL_CALL has( const Any & Element ) override
+        { return Reference< XSet >(getRoot(), UNO_QUERY_THROW)->has( Element ); }
+    virtual void SAL_CALL insert( const Any & Element ) override
+        { Reference< XSet >(getRoot(), UNO_QUERY_THROW)->insert( Element ); }
+    virtual void SAL_CALL remove( const Any & Element ) override
+        { Reference< XSet >(getRoot(), UNO_QUERY_THROW)->remove( Element ); }
+
+    // XContentEnumerationAccess
+    //Sequence< OUString >          getAvailableServiceNames() throw( (Exception) );
+    virtual Reference<XEnumeration > SAL_CALL createContentEnumeration(const OUString& aServiceName) override
+        { return Reference< XContentEnumerationAccess >(getRoot(), UNO_QUERY_THROW)->createContentEnumeration( aServiceName ); }
+
+    // XPropertySet
+    Reference<XPropertySetInfo > SAL_CALL getPropertySetInfo() override
+        { return Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->getPropertySetInfo(); }
+
+    void SAL_CALL setPropertyValue(const OUString& PropertyName, const Any& aValue) override;
+    Any SAL_CALL getPropertyValue(const OUString& PropertyName) override;
+
+    void SAL_CALL addPropertyChangeListener(const OUString& PropertyName, const Reference<XPropertyChangeListener >& aListener) override
+        { Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->addPropertyChangeListener( PropertyName, aListener ); }
+    void SAL_CALL removePropertyChangeListener(const OUString& PropertyName, const Reference<XPropertyChangeListener >& aListener) override
+        { Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->removePropertyChangeListener( PropertyName, aListener ); }
+    void SAL_CALL addVetoableChangeListener(const OUString& PropertyName, const Reference<XVetoableChangeListener >& aListener) override
+        { Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->addVetoableChangeListener( PropertyName, aListener ); }
+    void SAL_CALL removeVetoableChangeListener(const OUString& PropertyName, const Reference<XVetoableChangeListener >& aListener) override
+        { Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->removeVetoableChangeListener( PropertyName, aListener ); }
+};
+
+void SAL_CALL OServiceManagerWrapper::setPropertyValue(
+    const OUString& PropertyName, const Any& aValue )
+{
+    if ( PropertyName == "DefaultContext" )
+    {
+        Reference< XComponentContext > xContext;
+        if (!(aValue >>= xContext))
+        {
+            throw IllegalArgumentException(
+                "no XComponentContext given!",
+                getXWeak(), 1 );
+        }
+
+        MutexGuard aGuard( m_aMutex );
+        m_xContext = xContext;
+
+    }
+    else
+    {
+        Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->setPropertyValue( PropertyName, aValue );
+    }
+}
+
+Any SAL_CALL OServiceManagerWrapper::getPropertyValue(
+    const OUString& PropertyName )
+{
+    if ( PropertyName == "DefaultContext" )
+    {
+        MutexGuard aGuard( m_aMutex );
+        if( m_xContext.is() )
+            return Any( m_xContext );
+        else
+            return Any();
+    }
+    else
+    {
+        return Reference< XPropertySet >(getRoot(), UNO_QUERY_THROW)->getPropertyValue( PropertyName );
+    }
+}
+
+void OServiceManagerWrapper::disposing()
+{
+    m_xContext.clear();
+
+// no m_root->dispose(), because every context disposes its service manager...
+    m_root.clear();
+}
+
+OServiceManagerWrapper::OServiceManagerWrapper(
+    Reference< XComponentContext > const & xContext )
+    : t_OServiceManagerWrapper_impl( m_aMutex )
+    , m_xContext( xContext )
+    , m_root( xContext->getServiceManager() )
+{
+    if (! m_root.is())
+    {
+        throw RuntimeException(
+            "no service manager to wrap" );
+    }
+}
+
+
+/**
+ * Create a ServiceManager
+ */
+OServiceManager::OServiceManager( Reference< XComponentContext > const & xContext )
+    : t_OServiceManager_impl( m_aMutex )
+    , m_xContext( xContext )
+    , m_bInDisposing( false )
+{}
+
+// XComponent
+void OServiceManager::dispose()
+{
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+        return;
+    t_OServiceManager_impl::dispose();
+}
+
+void OServiceManager::disposing()
+{
+    // dispose all factories
+    HashSet_Ref aImpls;
+    {
+        MutexGuard aGuard( m_aMutex );
+        m_bInDisposing = true;
+        aImpls = m_ImplementationMap;
+    }
+    for( const auto& rxImpl : aImpls )
+    {
+        try
+        {
+            Reference<XComponent > xComp( Reference<XComponent >::query( rxImpl ) );
+            if( xComp.is() )
+                xComp->dispose();
+        }
+        catch (const RuntimeException & exc)
+        {
+            SAL_INFO("stoc", "RuntimeException occurred upon disposing factory: " << exc);
+        }
+    }
+
+    // dispose
+    HashSet_Ref aImplMap;
+    {
+        MutexGuard aGuard( m_aMutex );
+        // erase all members
+        m_ServiceMap = HashMultimap_OWString_Interface();
+        aImplMap = m_ImplementationMap;
+        m_ImplementationMap = HashSet_Ref();
+        m_ImplementationNameMap = HashMap_OWString_Interface();
+        m_SetLoadedFactories= HashSet_Ref();
+    }
+
+    m_xContext.clear();
+
+    // not only the Event should hold the object
+    OSL_ASSERT( m_refCount != 1 );
+}
+
+// XPropertySet
+Reference<XPropertySetInfo > OServiceManager::getPropertySetInfo()
+{
+    check_undisposed();
+    if (! m_xPropertyInfo.is())
+    {
+        Sequence< beans::Property > seq{ beans::Property(
+            "DefaultContext", -1, cppu::UnoType<decltype(m_xContext)>::get(), 0 ) };
+        Reference< beans::XPropertySetInfo > xInfo( new PropertySetInfo_Impl( seq ) );
+
+        MutexGuard aGuard( m_aMutex );
+        if (! m_xPropertyInfo.is())
+        {
+            m_xPropertyInfo = xInfo;
+        }
+    }
+    return m_xPropertyInfo;
+}
+
+void OServiceManager::setPropertyValue(
+    const OUString& PropertyName, const Any& aValue )
+{
+    check_undisposed();
+    if ( PropertyName != "DefaultContext" )
+    {
+        throw UnknownPropertyException(
+            "unknown property " + PropertyName,
+            getXWeak() );
+    }
+
+    Reference< XComponentContext > xContext;
+    if (!(aValue >>= xContext))
+    {
+        throw IllegalArgumentException(
+            "no XComponentContext given!",
+            getXWeak(), 1 );
+    }
+
+    MutexGuard aGuard( m_aMutex );
+    m_xContext = xContext;
+}
+
+Any OServiceManager::getPropertyValue(const OUString& PropertyName)
+{
+    check_undisposed();
+    if ( PropertyName == "DefaultContext" )
+    {
+        MutexGuard aGuard( m_aMutex );
+        if( m_xContext.is() )
+            return Any( m_xContext );
+        else
+            return Any();
+    }
+    else
+    {
+        UnknownPropertyException except("ServiceManager : unknown property " + PropertyName, {});
+        throw except;
+    }
+}
+
+void OServiceManager::addPropertyChangeListener(
+    const OUString&, const Reference<XPropertyChangeListener >&)
+{
+    check_undisposed();
+    throw UnknownPropertyException("unsupported");
+}
+
+void OServiceManager::removePropertyChangeListener(
+    const OUString&, const Reference<XPropertyChangeListener >&)
+{
+    check_undisposed();
+    throw UnknownPropertyException("unsupported");
+}
+
+void OServiceManager::addVetoableChangeListener(
+    const OUString&, const Reference<XVetoableChangeListener >&)
+{
+    check_undisposed();
+    throw UnknownPropertyException("unsupported");
+}
+
+void OServiceManager::removeVetoableChangeListener(
+    const OUString&, const Reference<XVetoableChangeListener >&)
+{
+    check_undisposed();
+    throw UnknownPropertyException("unsupported");
+}
+
+// OServiceManager
+Reference<XEventListener > OServiceManager::getFactoryListener()
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    if( !xFactoryListener.is() )
+        xFactoryListener = new OServiceManager_Listener( this );
+    return xFactoryListener;
+}
+
+// XMultiServiceFactory, XContentEnumeration
+Sequence< OUString > OServiceManager::getUniqueAvailableServiceNames(
+    HashSet_OWString & aNameSet )
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    for( const auto& rEntry : m_ServiceMap )
+        aNameSet.insert( rEntry.first );
+
+    /* do not return the implementation names
+    HashMap_OWString_Interface      m_ImplementationNameMap;
+    HashMap_OWString_Interface::iterator aIt = m_ImplementationNameMap.begin();
+    while( aIt != m_ImplementationNameMap.end() )
+        aNameSet.insert( (*aIt++).first );
+    */
+
+    return comphelper::containerToSequence(aNameSet);
+}
+
+// XMultiComponentFactory
+Reference< XInterface > OServiceManager::createInstanceWithContext(
+    OUString const & rServiceSpecifier,
+    Reference< XComponentContext > const & xContext )
+{
+    check_undisposed();
+#if OSL_DEBUG_LEVEL > 0
+    Reference< beans::XPropertySet > xProps( xContext->getServiceManager(), UNO_QUERY );
+    OSL_ASSERT( xProps.is() );
+    if (xProps.is())
+    {
+        Reference< XComponentContext > xDefContext;
+        xProps->getPropertyValue( "DefaultContext" ) >>= xDefContext;
+        OSL_ENSURE(
+            xContext == xDefContext,
+            "### default context of service manager singleton differs from context holding it!" );
+    }
+#endif
+
+    const Sequence< Reference< XInterface > > factories(
+        queryServiceFactories( rServiceSpecifier, xContext ) );
+    for ( Reference< XInterface > const & xFactory : factories )
+    {
+        try
+        {
+            if (xFactory.is())
+            {
+                Reference< XSingleComponentFactory > xFac( xFactory, UNO_QUERY );
+                if (xFac.is())
+                {
+                    return xFac->createInstanceWithContext( xContext );
+                }
+                else
+                {
+                    Reference< XSingleServiceFactory > xFac2( xFactory, UNO_QUERY );
+                    if (xFac2.is())
+                    {
+                        SAL_INFO("stoc", "ignoring given context raising service " << rServiceSpecifier << "!!!");
+                        return xFac2->createInstance();
+                    }
+                }
+            }
+        }
+        catch (const lang::DisposedException & exc)
+        {
+            SAL_INFO("stoc", "DisposedException occurred: " << exc);
+        }
+    }
+
+    return Reference< XInterface >();
+}
+// XMultiComponentFactory
+Reference< XInterface > OServiceManager::createInstanceWithArgumentsAndContext(
+    OUString const & rServiceSpecifier,
+    Sequence< Any > const & rArguments,
+    Reference< XComponentContext > const & xContext )
+{
+    check_undisposed();
+#if OSL_DEBUG_LEVEL > 0
+    Reference< beans::XPropertySet > xProps( xContext->getServiceManager(), UNO_QUERY );
+    OSL_ASSERT( xProps.is() );
+    if (xProps.is())
+    {
+        Reference< XComponentContext > xDefContext;
+        xProps->getPropertyValue( "DefaultContext" ) >>= xDefContext;
+        OSL_ENSURE(
+            xContext == xDefContext,
+            "### default context of service manager singleton differs from context holding it!" );
+    }
+#endif
+
+    const Sequence< Reference< XInterface > > factories(
+        queryServiceFactories( rServiceSpecifier, xContext ) );
+    for ( Reference< XInterface > const & xFactory : factories )
+    {
+        try
+        {
+            if (xFactory.is())
+            {
+                Reference< XSingleComponentFactory > xFac( xFactory, UNO_QUERY );
+                if (xFac.is())
+                {
+                    return xFac->createInstanceWithArgumentsAndContext( rArguments, xContext );
+                }
+                else
+                {
+                    Reference< XSingleServiceFactory > xFac2( xFactory, UNO_QUERY );
+                    if (xFac2.is())
+                    {
+                        SAL_INFO("stoc", "ignoring given context raising service " << rServiceSpecifier << "!!!");
+                        return xFac2->createInstanceWithArguments( rArguments );
+                    }
+                }
+            }
+        }
+        catch (const lang::DisposedException & exc)
+        {
+            SAL_INFO("stoc", "DisposedException occurred: " << exc);
+        }
+    }
+
+    return Reference< XInterface >();
+}
+
+// XMultiServiceFactory, XMultiComponentFactory, XContentEnumeration
+Sequence< OUString > OServiceManager::getAvailableServiceNames()
+{
+    check_undisposed();
+    // all names
+    HashSet_OWString aNameSet;
+    return getUniqueAvailableServiceNames( aNameSet );
+}
+
+// XMultipleServiceFactory
+Reference<XInterface > OServiceManager::createInstance(
+    const OUString& rServiceSpecifier )
+{
+    return createInstanceWithContext(
+        rServiceSpecifier, m_xContext );
+}
+
+// XMultipleServiceFactory
+Reference<XInterface > OServiceManager::createInstanceWithArguments(
+    const OUString& rServiceSpecifier,
+    const Sequence<Any >& rArguments )
+{
+    return createInstanceWithArgumentsAndContext(
+        rServiceSpecifier, rArguments, m_xContext );
+}
+
+// XInitialization
+void OServiceManager::initialize( Sequence< Any > const & )
+{
+    check_undisposed();
+    OSL_FAIL( "not impl!" );
+}
+
+// XServiceInfo
+OUString OServiceManager::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.OServiceManager";
+}
+
+// XServiceInfo
+sal_Bool OServiceManager::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+// XServiceInfo
+Sequence< OUString > OServiceManager::getSupportedServiceNames()
+{
+    return { "com.sun.star.lang.MultiServiceFactory", "com.sun.star.lang.ServiceManager" };
+}
+
+
+Sequence< Reference< XInterface > > OServiceManager::queryServiceFactories(
+    const OUString& aServiceName, Reference< XComponentContext > const & )
+{
+    Sequence< Reference< XInterface > > ret;
+
+    MutexGuard aGuard( m_aMutex );
+    ::std::pair<
+          HashMultimap_OWString_Interface::iterator,
+          HashMultimap_OWString_Interface::iterator> p(
+              m_ServiceMap.equal_range( aServiceName ) );
+
+    if (p.first == p.second) // no factories
+    {
+        // no service found, look for an implementation
+        HashMap_OWString_Interface::iterator aIt = m_ImplementationNameMap.find( aServiceName );
+        if( aIt != m_ImplementationNameMap.end() )
+        {
+            Reference< XInterface > const & x = aIt->second;
+            // an implementation found
+            ret = Sequence< Reference< XInterface > >( &x, 1 );
+        }
+    }
+    else
+    {
+        ::std::vector< Reference< XInterface > > vec;
+        vec.reserve( 4 );
+        while (p.first != p.second)
+        {
+            vec.push_back( p.first->second );
+            ++p.first;
+        }
+        ret = Sequence< Reference< XInterface > >( vec.data(), vec.size() );
+    }
+
+    return ret;
+}
+
+// XContentEnumerationAccess
+Reference<XEnumeration > OServiceManager::createContentEnumeration(
+    const OUString& aServiceName )
+{
+    check_undisposed();
+    Sequence< Reference< XInterface > > factories(
+        OServiceManager::queryServiceFactories( aServiceName, m_xContext ) );
+    if (factories.hasElements())
+        return new ServiceEnumeration_Impl( factories );
+    else
+        return Reference< XEnumeration >();
+}
+
+// XEnumeration
+Reference<XEnumeration > OServiceManager::createEnumeration()
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    return new ImplementationEnumeration_Impl( m_ImplementationMap );
+}
+
+// XElementAccess
+Type OServiceManager::getElementType()
+{
+    check_undisposed();
+    return cppu::UnoType<XInterface>::get();
+}
+
+// XElementAccess
+sal_Bool OServiceManager::hasElements()
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    return !m_ImplementationMap.empty();
+}
+
+// XSet
+sal_Bool OServiceManager::has( const Any & Element )
+{
+    check_undisposed();
+    if( Element.getValueTypeClass() == TypeClass_INTERFACE )
+    {
+        Reference<XInterface > xEle( Element, UNO_QUERY_THROW );
+        MutexGuard aGuard( m_aMutex );
+        return m_ImplementationMap.find( xEle ) !=
+            m_ImplementationMap.end();
+    }
+    else if (auto implName = o3tl::tryAccess<OUString>(Element))
+    {
+        MutexGuard aGuard( m_aMutex );
+        return m_ImplementationNameMap.find( *implName ) !=
+            m_ImplementationNameMap.end();
+    }
+    return false;
+}
+
+// XSet
+void OServiceManager::insert( const Any & Element )
+{
+    check_undisposed();
+    if( Element.getValueTypeClass() != TypeClass_INTERFACE )
+    {
+        throw IllegalArgumentException(
+            "exception interface, got " + Element.getValueType().getTypeName(),
+            Reference< XInterface >(), 0 );
+    }
+    Reference<XInterface > xEle( Element, UNO_QUERY_THROW );
+
+    {
+    MutexGuard aGuard( m_aMutex );
+    HashSet_Ref::iterator aIt = m_ImplementationMap.find( xEle );
+    if( aIt != m_ImplementationMap.end() )
+    {
+        throw ElementExistException( "element already exists!" );
+    }
+
+    // put into the implementation hashmap
+    m_ImplementationMap.insert( xEle );
+
+    // put into the implementation name hashmap
+    Reference<XServiceInfo > xInfo( Reference<XServiceInfo >::query( xEle ) );
+    if( xInfo.is() )
+    {
+        OUString aImplName = xInfo->getImplementationName();
+        if( !aImplName.isEmpty() )
+            m_ImplementationNameMap[ aImplName ] = xEle;
+
+        //put into the service map
+        const Sequence< OUString > aServiceNames = xInfo->getSupportedServiceNames();
+        for( const OUString& rServiceName : aServiceNames )
+        {
+            m_ServiceMap.emplace(
+                rServiceName, *o3tl::doAccess<Reference<XInterface>>(Element) );
+        }
+    }
+    }
+    // add the disposing listener to the factory
+    Reference<XComponent > xComp( Reference<XComponent >::query( xEle ) );
+    if( xComp.is() )
+        xComp->addEventListener( getFactoryListener() );
+}
+
+// helper function
+bool OServiceManager::haveFactoryWithThisImplementation(const OUString& aImplName)
+{
+    return ( m_ImplementationNameMap.find(aImplName) != m_ImplementationNameMap.end());
+}
+
+// XSet
+void OServiceManager::remove( const Any & Element )
+{
+    if (is_disposed())
+        return;
+
+    Reference<XInterface > xEle;
+    if (Element.getValueTypeClass() == TypeClass_INTERFACE)
+    {
+        xEle.set( Element, UNO_QUERY_THROW );
+    }
+    else if (auto implName = o3tl::tryAccess<OUString>(Element))
+    {
+        MutexGuard aGuard( m_aMutex );
+        HashMap_OWString_Interface::const_iterator const iFind(
+            m_ImplementationNameMap.find( *implName ) );
+        if (iFind == m_ImplementationNameMap.end())
+        {
+            throw NoSuchElementException(
+                "element is not in: " + *implName,
+                getXWeak() );
+        }
+        xEle = iFind->second;
+    }
+    else
+    {
+        throw IllegalArgumentException(
+            "expected interface or string, got " + Element.getValueType().getTypeName(),
+            Reference< XInterface >(), 0 );
+    }
+
+    // remove the disposing listener from the factory
+    Reference<XComponent > xComp( Reference<XComponent >::query( xEle ) );
+    if( xComp.is() )
+        xComp->removeEventListener( getFactoryListener() );
+
+    MutexGuard aGuard( m_aMutex );
+    HashSet_Ref::iterator aIt = m_ImplementationMap.find( xEle );
+    if( aIt == m_ImplementationMap.end() )
+    {
+        throw NoSuchElementException(
+            "element not found",
+            getXWeak() );
+    }
+    //First remove all factories which have been loaded by ORegistryServiceManager.
+    m_SetLoadedFactories.erase( *aIt);
+    //Remove from the implementation map. It contains all factories of m_SetLoadedFactories
+    //which have been added directly through XSet, that is not via ORegistryServiceManager
+    m_ImplementationMap.erase( aIt );
+
+    // remove from the implementation name hashmap
+    Reference<XServiceInfo > xInfo( Reference<XServiceInfo >::query( xEle ) );
+    if( xInfo.is() )
+    {
+        OUString aImplName = xInfo->getImplementationName();
+        if( !aImplName.isEmpty() )
+            m_ImplementationNameMap.erase( aImplName );
+    }
+
+    //remove from the service map
+    Reference<XServiceInfo > xSF( Reference<XServiceInfo >::query( xEle ) );
+    if( !xSF.is() )
+        return;
+
+    const Sequence< OUString > aServiceNames = xSF->getSupportedServiceNames();
+    for( const OUString& rServiceName : aServiceNames )
+    {
+        std::pair<HashMultimap_OWString_Interface::iterator, HashMultimap_OWString_Interface::iterator> p =
+            m_ServiceMap.equal_range( rServiceName );
+
+        while( p.first != p.second )
+        {
+            if( xEle == (*p.first).second )
+            {
+                m_ServiceMap.erase( p.first );
+                break;
+            }
+            ++p.first;
+        }
+    }
+}
+
+/*****************************************************************************
+    class ORegistryServiceManager
+*****************************************************************************/
+class ORegistryServiceManager : public OServiceManager
+{
+public:
+    explicit ORegistryServiceManager( Reference< XComponentContext > const & xContext );
+
+    // XInitialization
+    void SAL_CALL initialize(const Sequence< Any >& Arguments) override;
+
+    // XServiceInfo
+    OUString SAL_CALL getImplementationName() override
+        { return "com.sun.star.comp.stoc.ORegistryServiceManager"; }
+
+    Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XMultiServiceFactory
+    Sequence< OUString > SAL_CALL getAvailableServiceNames() override;
+
+    // XContentEnumerationAccess
+    //Sequence< OUString >          getAvailableServiceNames() throw( (Exception) );
+    Reference<XEnumeration > SAL_CALL createContentEnumeration(const OUString& aServiceName) override;
+
+    // XComponent
+    void SAL_CALL dispose() override;
+
+    // OServiceManager
+    Reference<XPropertySetInfo > SAL_CALL getPropertySetInfo() override;
+    Any SAL_CALL getPropertyValue(const OUString& PropertyName) override;
+
+protected:
+    //OServiceManager
+    Sequence< Reference< XInterface > > queryServiceFactories(
+        const OUString& aServiceName, Reference< XComponentContext > const & xContext ) override;
+private:
+    Reference<XRegistryKey >        getRootKey();
+    Reference<XInterface > loadWithImplementationName(
+        const OUString & rImplName, Reference< XComponentContext > const & xContext );
+    Sequence<OUString>          getFromServiceName(std::u16string_view serviceName) const;
+    Reference<XInterface > loadWithServiceName(
+        std::u16string_view rImplName, Reference< XComponentContext > const & xContext );
+    void                        fillAllNamesFromRegistry( HashSet_OWString & );
+
+    bool                    m_searchedRegistry;
+    Reference<XSimpleRegistry > m_xRegistry;    // readonly property Registry
+    Reference<XRegistryKey >    m_xRootKey;
+
+#if OSL_DEBUG_LEVEL > 0
+    bool m_init;
+#endif
+};
+
+/**
+ * Create a ServiceManager
+ */
+ORegistryServiceManager::ORegistryServiceManager( Reference< XComponentContext > const & xContext )
+    : OServiceManager( xContext )
+    , m_searchedRegistry(false)
+#if OSL_DEBUG_LEVEL > 0
+    , m_init( false )
+#endif
+{
+}
+
+// XComponent
+void ORegistryServiceManager::dispose()
+{
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+        return;
+    OServiceManager::dispose();
+    // dispose
+    MutexGuard aGuard( m_aMutex );
+    // erase all members
+    m_xRegistry.clear();
+    m_xRootKey.clear();
+}
+
+/**
+ * Return the root key of the registry. The Default registry service is ordered
+ * if no registry is set.
+ */
+//Reference<XServiceProvider > create_DefaultRegistry_ServiceProvider();
+
+Reference<XRegistryKey > ORegistryServiceManager::getRootKey()
+{
+    if( !m_xRootKey.is() )
+    {
+        MutexGuard aGuard( m_aMutex );
+        //  DefaultRegistry suchen !!!!
+        if( !m_xRegistry.is() && !m_searchedRegistry )
+        {
+            // NB. we only search this once
+            m_searchedRegistry = true;
+
+            m_xRegistry.set(
+                createInstanceWithContext(
+                    "com.sun.star.registry.DefaultRegistry",
+                    m_xContext ),
+                UNO_QUERY );
+        }
+        if( m_xRegistry.is() && !m_xRootKey.is() )
+            m_xRootKey = m_xRegistry->getRootKey();
+    }
+
+    return m_xRootKey;
+}
+
+/**
+ * Create a service provider from the registry with an implementation name
+ */
+Reference<XInterface > ORegistryServiceManager::loadWithImplementationName(
+    const OUString& name, Reference< XComponentContext > const & xContext )
+{
+    Reference<XInterface > ret;
+
+    Reference<XRegistryKey > xRootKey = getRootKey();
+    if( !xRootKey.is() )
+        return ret;
+
+    try
+    {
+        OUString implementationName = "/IMPLEMENTATIONS/" + name;
+        Reference<XRegistryKey > xImpKey = m_xRootKey->openKey(implementationName);
+
+        if( xImpKey.is() )
+        {
+            Reference< lang::XMultiServiceFactory > xMgr;
+            if (xContext.is())
+                xMgr.set( xContext->getServiceManager(), UNO_QUERY_THROW );
+            else
+                xMgr.set( this );
+            ret = createSingleRegistryFactory( xMgr, name, xImpKey );
+            insert( Any( ret ) );
+            // Remember this factory as loaded in contrast to inserted ( XSet::insert)
+            // factories. Those loaded factories in this set are candidates for being
+            // released on an unloading notification.
+            m_SetLoadedFactories.insert( ret);
+        }
+    }
+    catch (InvalidRegistryException &)
+    {
+    }
+
+    return ret;
+}
+
+/**
+ * Return all implementation out of the registry.
+ */
+Sequence<OUString> ORegistryServiceManager::getFromServiceName(
+    std::u16string_view serviceName ) const
+{
+    OUString buf = OUString::Concat("/SERVICES/") + serviceName;
+    return retrieveAsciiValueList( m_xRegistry, buf );
+}
+
+/**
+ * Create a service provider from the registry
+ */
+Reference<XInterface > ORegistryServiceManager::loadWithServiceName(
+    std::u16string_view serviceName, Reference< XComponentContext > const & xContext )
+{
+    const Sequence<OUString> implEntries = getFromServiceName( serviceName );
+    for (const auto& rEntry : implEntries)
+    {
+        Reference< XInterface > x( loadWithImplementationName( rEntry, xContext ) );
+        if (x.is())
+            return x;
+    }
+
+    return Reference<XInterface >();
+}
+
+/**
+ * Return a sequence of all service names from the registry.
+ */
+void ORegistryServiceManager::fillAllNamesFromRegistry( HashSet_OWString & rSet )
+{
+    Reference<XRegistryKey > xRootKey = getRootKey();
+    if( !xRootKey.is() )
+        return;
+
+    try
+    {
+        Reference<XRegistryKey > xServicesKey = xRootKey->openKey( "SERVICES" );
+        // root + /Services + /
+        if( xServicesKey.is() )
+        {
+            sal_Int32 nPrefix = xServicesKey->getKeyName().getLength() +1;
+            const Sequence<Reference<XRegistryKey > > aKeys = xServicesKey->openKeys();
+            std::transform(aKeys.begin(), aKeys.end(), std::inserter(rSet, rSet.end()),
+                [nPrefix](const Reference<XRegistryKey>& rKey) -> OUString {
+                    return rKey->getKeyName().copy( nPrefix ); });
+        }
+    }
+    catch (InvalidRegistryException &)
+    {
+    }
+}
+
+// XInitialization
+void ORegistryServiceManager::initialize(const Sequence< Any >& Arguments)
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    if (Arguments.hasElements())
+    {
+        m_xRootKey.clear();
+        Arguments[ 0 ] >>= m_xRegistry;
+    }
+#if OSL_DEBUG_LEVEL > 0
+    // to find all bootstrapping processes to be fixed...
+    OSL_ENSURE( !m_init, "### second init of service manager instance!" );
+    m_init = true;
+#endif
+}
+
+// XMultiServiceFactory, XContentEnumeration
+Sequence< OUString > ORegistryServiceManager::getAvailableServiceNames()
+{
+    check_undisposed();
+    MutexGuard aGuard( m_aMutex );
+    // all names
+    HashSet_OWString aNameSet;
+
+    // all names from the registry
+    fillAllNamesFromRegistry( aNameSet );
+
+    return OServiceManager::getUniqueAvailableServiceNames( aNameSet );
+}
+
+// XServiceInfo
+Sequence< OUString > ORegistryServiceManager::getSupportedServiceNames()
+{
+    return { "com.sun.star.lang.MultiServiceFactory", "com.sun.star.lang.RegistryServiceManager" };
+}
+
+
+// OServiceManager
+Sequence< Reference< XInterface > > ORegistryServiceManager::queryServiceFactories(
+    const OUString& aServiceName, Reference< XComponentContext > const & xContext )
+{
+    Sequence< Reference< XInterface > > ret(
+        OServiceManager::queryServiceFactories( aServiceName, xContext ) );
+    if (ret.hasElements())
+    {
+        return ret;
+    }
+    else
+    {
+        MutexGuard aGuard( m_aMutex );
+        Reference< XInterface > x( loadWithServiceName( aServiceName, xContext ) );
+        if (! x.is())
+            x = loadWithImplementationName( aServiceName, xContext );
+        return Sequence< Reference< XInterface > >( &x, 1 );
+    }
+}
+
+// XContentEnumerationAccess
+Reference<XEnumeration > ORegistryServiceManager::createContentEnumeration(
+    const OUString& aServiceName )
+{
+    check_undisposed();
+    MutexGuard aGuard(m_aMutex);
+    // get all implementation names registered under this service name from the registry
+    const Sequence<OUString> aImpls = getFromServiceName( aServiceName );
+    // load and insert all factories specified by the registry
+    for( const OUString& aImplName : aImpls )
+    {
+        if ( !haveFactoryWithThisImplementation(aImplName) )
+        {
+            loadWithImplementationName( aImplName, m_xContext );
+        }
+    }
+    // call the superclass to enumerate all contents
+    return OServiceManager::createContentEnumeration( aServiceName );
+}
+
+// OServiceManager
+Reference<XPropertySetInfo > ORegistryServiceManager::getPropertySetInfo()
+{
+    check_undisposed();
+    if (! m_xPropertyInfo.is())
+    {
+        Sequence< beans::Property > seq{
+            beans::Property("DefaultContext", -1, cppu::UnoType<decltype(m_xContext)>::get(), 0),
+            beans::Property("Registry", -1, cppu::UnoType<decltype(m_xRegistry)>::get(),
+                            beans::PropertyAttribute::READONLY)
+        };
+        Reference< beans::XPropertySetInfo > xInfo( new PropertySetInfo_Impl( seq ) );
+
+        MutexGuard aGuard( m_aMutex );
+        if (! m_xPropertyInfo.is())
+        {
+            m_xPropertyInfo = xInfo;
+        }
+    }
+    return m_xPropertyInfo;
+}
+
+Any ORegistryServiceManager::getPropertyValue(const OUString& PropertyName)
+{
+    check_undisposed();
+    if ( PropertyName == "Registry" )
+    {
+        MutexGuard aGuard( m_aMutex );
+        if( m_xRegistry.is() )
+            return Any( m_xRegistry );
+        else
+            return Any();
+    }
+    return OServiceManager::getPropertyValue( PropertyName );
+}
+
+} // namespace
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_OServiceManager_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new OServiceManager(context));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_ORegistryServiceManager_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new ORegistryServiceManager(context));
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_OServiceManagerWrapper_get_implementation(
+    css::uno::XComponentContext *context,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new OServiceManagerWrapper(context));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/simpleregistry/simpleregistry.cxx b/stoc/source/simpleregistry/simpleregistry.cxx
new file mode 100644
index 0000000000..f793aa56db
--- /dev/null
+++ b/stoc/source/simpleregistry/simpleregistry.cxx
@@ -0,0 +1,932 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cstdlib>
+#include <mutex>
+#include <optional>
+#include <utility>
+#include <vector>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/registry/InvalidRegistryException.hpp>
+#include <com/sun/star/registry/InvalidValueException.hpp>
+#include <com/sun/star/registry/RegistryKeyType.hpp>
+#include <com/sun/star/registry/XRegistryKey.hpp>
+#include <com/sun/star/registry/XSimpleRegistry.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/XInterface.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <registry/registry.hxx>
+#include <registry/regtype.h>
+#include <rtl/ref.hxx>
+#include <rtl/string.h>
+#include <rtl/string.hxx>
+#include <rtl/textcvt.h>
+#include <rtl/textenc.h>
+#include <rtl/ustring.h>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+namespace {
+
+class SimpleRegistry:
+    public cppu::WeakImplHelper<
+        css::registry::XSimpleRegistry, css::lang::XServiceInfo >
+{
+public:
+    SimpleRegistry(): registry_(Registry()) {}
+
+    ~SimpleRegistry() {
+        std::scoped_lock guard(mutex_);
+        registry_.reset();
+    }
+
+    std::mutex mutex_;
+
+private:
+    virtual OUString SAL_CALL getURL() override;
+
+    virtual void SAL_CALL open(
+        OUString const & rURL, sal_Bool bReadOnly, sal_Bool bCreate) override;
+
+    virtual sal_Bool SAL_CALL isValid() override;
+
+    virtual void SAL_CALL close() override;
+
+    virtual void SAL_CALL destroy() override;
+
+    virtual css::uno::Reference< css::registry::XRegistryKey > SAL_CALL
+    getRootKey() override;
+
+    virtual sal_Bool SAL_CALL isReadOnly() override;
+
+    virtual void SAL_CALL mergeKey(
+        OUString const & aKeyName, OUString const & aUrl) override;
+
+    virtual OUString SAL_CALL getImplementationName() override
+    { return "com.sun.star.comp.stoc.SimpleRegistry"; }
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
+    { return cppu::supportsService(this, ServiceName); }
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override
+    {
+        css::uno::Sequence< OUString > names { "com.sun.star.registry.SimpleRegistry" };
+        return names;
+    }
+
+    std::optional<Registry> registry_;
+};
+
+class Key: public cppu::WeakImplHelper< css::registry::XRegistryKey > {
+public:
+    Key(
+        rtl::Reference< SimpleRegistry > registry,
+        RegistryKey const & key):
+        registry_(std::move(registry)), key_(key) {}
+
+    ~Key() {
+        std::scoped_lock guard(registry_->mutex_);
+        key_.reset();
+    }
+
+private:
+    virtual OUString SAL_CALL getKeyName() override;
+
+    virtual sal_Bool SAL_CALL isReadOnly() override;
+
+    virtual sal_Bool SAL_CALL isValid() override;
+
+    virtual css::registry::RegistryKeyType SAL_CALL getKeyType(
+        OUString const & rKeyName) override;
+
+    virtual css::registry::RegistryValueType SAL_CALL getValueType() override;
+
+    virtual sal_Int32 SAL_CALL getLongValue() override;
+
+    virtual void SAL_CALL setLongValue(sal_Int32 value) override;
+
+    virtual css::uno::Sequence< sal_Int32 > SAL_CALL getLongListValue() override;
+
+    virtual void SAL_CALL setLongListValue(
+        css::uno::Sequence< sal_Int32 > const & seqValue) override;
+
+    virtual OUString SAL_CALL getAsciiValue() override;
+
+    virtual void SAL_CALL setAsciiValue(OUString const & value) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL getAsciiListValue() override;
+
+    virtual void SAL_CALL setAsciiListValue(
+        css::uno::Sequence< OUString > const & seqValue) override;
+
+    virtual OUString SAL_CALL getStringValue() override;
+
+    virtual void SAL_CALL setStringValue(OUString const & value) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL getStringListValue() override;
+
+    virtual void SAL_CALL setStringListValue(
+        css::uno::Sequence< OUString > const & seqValue) override;
+
+    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getBinaryValue() override;
+
+    virtual void SAL_CALL setBinaryValue(
+        css::uno::Sequence< sal_Int8 > const & value) override;
+
+    virtual css::uno::Reference< css::registry::XRegistryKey > SAL_CALL openKey(
+        OUString const & aKeyName) override;
+
+    virtual css::uno::Reference< css::registry::XRegistryKey > SAL_CALL
+    createKey(OUString const & aKeyName) override;
+
+    virtual void SAL_CALL closeKey() override;
+
+    virtual void SAL_CALL deleteKey(OUString const & rKeyName) override;
+
+    virtual
+    css::uno::Sequence< css::uno::Reference< css::registry::XRegistryKey > >
+    SAL_CALL openKeys() override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL getKeyNames() override;
+
+    virtual sal_Bool SAL_CALL createLink(
+        OUString const & aLinkName, OUString const & aLinkTarget) override;
+
+    virtual void SAL_CALL deleteLink(OUString const & rLinkName) override;
+
+    virtual OUString SAL_CALL getLinkTarget(OUString const & rLinkName) override;
+
+    virtual OUString SAL_CALL getResolvedName(OUString const & aKeyName) override;
+
+    rtl::Reference< SimpleRegistry > registry_;
+    std::optional<RegistryKey> key_;
+};
+
+OUString Key::getKeyName() {
+    std::scoped_lock guard(registry_->mutex_);
+    return key_->getName();
+}
+
+sal_Bool Key::isReadOnly()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    return key_->isReadOnly();
+}
+
+sal_Bool Key::isValid() {
+    std::scoped_lock guard(registry_->mutex_);
+    return key_->isValid();
+}
+
+css::registry::RegistryKeyType Key::getKeyType(OUString const & )
+{
+    return css::registry::RegistryKeyType_KEY;
+}
+
+css::registry::RegistryValueType Key::getValueType()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegValueType type;
+    sal_uInt32 size;
+    RegError err = key_->getValueInfo(OUString(), &type, &size);
+    switch (err) {
+    case RegError::NO_ERROR:
+        break;
+    case RegError::INVALID_VALUE:
+        type = RegValueType::NOT_DEFINED;
+        break;
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getValueType:"
+            " underlying RegistryKey::getValueInfo() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    switch (type) {
+    default:
+        std::abort(); // this cannot happen
+        // pseudo-fall-through to avoid warnings on MSC
+    case RegValueType::NOT_DEFINED:
+        return css::registry::RegistryValueType_NOT_DEFINED;
+    case RegValueType::LONG:
+        return css::registry::RegistryValueType_LONG;
+    case RegValueType::STRING:
+        return css::registry::RegistryValueType_ASCII;
+    case RegValueType::UNICODE:
+        return css::registry::RegistryValueType_STRING;
+    case RegValueType::BINARY:
+        return css::registry::RegistryValueType_BINARY;
+    case RegValueType::LONGLIST:
+        return css::registry::RegistryValueType_LONGLIST;
+    case RegValueType::STRINGLIST:
+        return css::registry::RegistryValueType_ASCIILIST;
+    case RegValueType::UNICODELIST:
+        return css::registry::RegistryValueType_STRINGLIST;
+    }
+}
+
+sal_Int32 Key::getLongValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    sal_Int32 value;
+    RegError err = key_->getValue(OUString(), &value);
+    switch (err) {
+    case RegError::NO_ERROR:
+        break;
+    case RegError::INVALID_VALUE:
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getLongValue:"
+            " underlying RegistryKey::getValue() = RegError::INVALID_VALUE",
+            getXWeak());
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getLongValue:"
+            " underlying RegistryKey::getValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    return value;
+}
+
+void Key::setLongValue(sal_Int32 value)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->setValue(
+        OUString(), RegValueType::LONG, &value, sizeof (sal_Int32));
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key setLongValue:"
+            " underlying RegistryKey::setValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Sequence< sal_Int32 > Key::getLongListValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryValueList< sal_Int32 > list;
+    RegError err = key_->getLongListValue(OUString(), list);
+    switch (err) {
+    case RegError::NO_ERROR:
+        break;
+    case RegError::VALUE_NOT_EXISTS:
+        return css::uno::Sequence< sal_Int32 >();
+    case RegError::INVALID_VALUE:
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getLongListValue:"
+            " underlying RegistryKey::getLongListValue() ="
+            " RegError::INVALID_VALUE",
+            getXWeak());
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getLongListValue:"
+            " underlying RegistryKey::getLongListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    sal_uInt32 n = list.getLength();
+    if (n > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getLongListValue:"
+            " underlying RegistryKey::getLongListValue() too large",
+            getXWeak());
+    }
+    css::uno::Sequence< sal_Int32 > value(static_cast< sal_Int32 >(n));
+    auto aValueRange = asNonConstRange(value);
+    for (sal_uInt32 i = 0; i < n; ++i) {
+        aValueRange[static_cast< sal_Int32 >(i)] = list.getElement(i);
+    }
+    return value;
+}
+
+void Key::setLongListValue(css::uno::Sequence< sal_Int32 > const & seqValue)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->setLongListValue(
+        OUString(), seqValue.getConstArray(), static_cast< sal_uInt32 >(seqValue.getLength()));
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key setLongListValue:"
+            " underlying RegistryKey::setLongListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+OUString Key::getAsciiValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegValueType type;
+    sal_uInt32 size;
+    RegError err = key_->getValueInfo(OUString(), &type, &size);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey::getValueInfo() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    if (type != RegValueType::STRING) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey type = " + OUString::number(static_cast<int>(type)),
+            getXWeak());
+    }
+    // size contains terminating null (error in underlying registry.cxx):
+    if (size == 0) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey size 0 cannot happen due to"
+            " design error",
+            getXWeak());
+    }
+    if (size > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey size too large",
+            getXWeak());
+    }
+    std::vector< char > list(size);
+    err = key_->getValue(OUString(), list.data());
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey::getValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    if (list[size - 1] != '\0') {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey value must be null-terminated due"
+            " to design error",
+            getXWeak());
+    }
+    OUString value;
+    if (!rtl_convertStringToUString(
+            &value.pData, list.data(),
+            static_cast< sal_Int32 >(size - 1), RTL_TEXTENCODING_UTF8,
+            (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR |
+             RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR |
+             RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR)))
+    {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getAsciiValue:"
+            " underlying RegistryKey not UTF-8",
+            getXWeak());
+    }
+    return value;
+}
+
+void Key::setAsciiValue(OUString const & value)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    OString utf8;
+    if (!value.convertToString(
+            &utf8, RTL_TEXTENCODING_UTF8,
+            (RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR |
+             RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR)))
+    {
+        throw css::uno::RuntimeException(
+            "com.sun.star.registry.SimpleRegistry key setAsciiValue:"
+            " value not UTF-16",
+            getXWeak());
+    }
+    RegError err = key_->setValue(
+        OUString(), RegValueType::STRING,
+        const_cast< char * >(utf8.getStr()), utf8.getLength() + 1);
+        // +1 for terminating null (error in underlying registry.cxx)
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key setAsciiValue:"
+            " underlying RegistryKey::setValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Sequence< OUString > Key::getAsciiListValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryValueList< char * > list;
+    RegError err = key_->getStringListValue(OUString(), list);
+    switch (err) {
+    case RegError::NO_ERROR:
+        break;
+    case RegError::VALUE_NOT_EXISTS:
+        return css::uno::Sequence< OUString >();
+    case RegError::INVALID_VALUE:
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getAsciiListValue: underlying"
+            " RegistryKey::getStringListValue() = RegError::INVALID_VALUE",
+            getXWeak());
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getAsciiListValue: underlying"
+            " RegistryKey::getStringListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    sal_uInt32 n = list.getLength();
+    if (n > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getAsciiListValue: underlying"
+            " RegistryKey::getStringListValue() too large",
+            getXWeak());
+    }
+    css::uno::Sequence< OUString > value(static_cast< sal_Int32 >(n));
+    auto aValueRange = asNonConstRange(value);
+    for (sal_uInt32 i = 0; i < n; ++i) {
+        char * el = list.getElement(i);
+        sal_Int32 size = rtl_str_getLength(el);
+        if (!rtl_convertStringToUString(
+                &aValueRange[static_cast< sal_Int32 >(i)].pData, el, size,
+                RTL_TEXTENCODING_UTF8,
+                (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR |
+                 RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR |
+                 RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR)))
+        {
+            throw css::registry::InvalidValueException(
+                "com.sun.star.registry.SimpleRegistry key"
+                " getAsciiListValue: underlying RegistryKey not"
+                " UTF-8",
+                getXWeak());
+        }
+    }
+    return value;
+}
+
+void Key::setAsciiListValue(
+    css::uno::Sequence< OUString > const & seqValue)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    std::vector< OString > list;
+    for (const auto& rValue : seqValue) {
+        OString utf8;
+        if (!rValue.convertToString(
+                &utf8, RTL_TEXTENCODING_UTF8,
+                (RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR |
+                 RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR)))
+        {
+            throw css::uno::RuntimeException(
+                "com.sun.star.registry.SimpleRegistry key"
+                " setAsciiListValue: value not UTF-16",
+                getXWeak());
+        }
+        list.push_back(utf8);
+    }
+    std::vector< char * > list2;
+    for (const auto& rItem : list)
+    {
+        list2.push_back(const_cast< char * >(rItem.getStr()));
+    }
+    RegError err = key_->setStringListValue(
+        OUString(), list2.data(), static_cast< sal_uInt32 >(list2.size()));
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " setAsciiListValue: underlying"
+            " RegistryKey::setStringListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+OUString Key::getStringValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegValueType type;
+    sal_uInt32 size;
+    RegError err = key_->getValueInfo(OUString(), &type, &size);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey::getValueInfo() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    if (type != RegValueType::UNICODE) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey type = " + OUString::number(static_cast<int>(type)),
+            getXWeak());
+    }
+    // size contains terminating null and is *2 (error in underlying
+    // registry.cxx):
+    if (size == 0 || (size & 1) == 1) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey size 0 or odd cannot happen due to"
+            " design error",
+            getXWeak());
+    }
+    if (size > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey size too large",
+            getXWeak());
+    }
+    std::vector< sal_Unicode > list(size);
+    err = key_->getValue(OUString(), list.data());
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey::getValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    if (list[size/2 - 1] != 0) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getStringValue:"
+            " underlying RegistryKey value must be null-terminated due"
+            " to design error",
+            getXWeak());
+    }
+    return OUString(list.data(), static_cast< sal_Int32 >(size/2 - 1));
+}
+
+void Key::setStringValue(OUString const & value)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->setValue(
+        OUString(), RegValueType::UNICODE,
+        const_cast< sal_Unicode * >(value.getStr()),
+        (value.getLength() + 1) * sizeof (sal_Unicode));
+        // +1 for terminating null (error in underlying registry.cxx)
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key setStringValue:"
+            " underlying RegistryKey::setValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Sequence< OUString > Key::getStringListValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryValueList< sal_Unicode * > list;
+    RegError err = key_->getUnicodeListValue(OUString(), list);
+    switch (err) {
+    case RegError::NO_ERROR:
+        break;
+    case RegError::VALUE_NOT_EXISTS:
+        return css::uno::Sequence< OUString >();
+    case RegError::INVALID_VALUE:
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getStringListValue: underlying"
+            " RegistryKey::getUnicodeListValue() = RegError::INVALID_VALUE",
+            getXWeak());
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getStringListValue: underlying"
+            " RegistryKey::getUnicodeListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    sal_uInt32 n = list.getLength();
+    if (n > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " getStringListValue: underlying"
+            " RegistryKey::getUnicodeListValue() too large",
+            getXWeak());
+    }
+    css::uno::Sequence< OUString > value(static_cast< sal_Int32 >(n));
+    auto aValueRange = asNonConstRange(value);
+    for (sal_uInt32 i = 0; i < n; ++i) {
+        aValueRange[static_cast< sal_Int32 >(i)] = list.getElement(i);
+    }
+    return value;
+}
+
+void Key::setStringListValue(
+    css::uno::Sequence< OUString > const & seqValue)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    std::vector< sal_Unicode * > list;
+    list.reserve(seqValue.getLength());
+    std::transform(seqValue.begin(), seqValue.end(), std::back_inserter(list),
+        [](const OUString& rValue) -> sal_Unicode* { return const_cast<sal_Unicode*>(rValue.getStr()); });
+    RegError err = key_->setUnicodeListValue(
+        OUString(), list.data(), static_cast< sal_uInt32 >(list.size()));
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key"
+            " setStringListValue: underlying"
+            " RegistryKey::setUnicodeListValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Sequence< sal_Int8 > Key::getBinaryValue()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegValueType type;
+    sal_uInt32 size;
+    RegError err = key_->getValueInfo(OUString(), &type, &size);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getBinaryValue:"
+            " underlying RegistryKey::getValueInfo() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    if (type != RegValueType::BINARY) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getBinaryValue:"
+            " underlying RegistryKey type = " + OUString::number(static_cast<int>(type)),
+            getXWeak());
+    }
+    if (size > SAL_MAX_INT32) {
+        throw css::registry::InvalidValueException(
+            "com.sun.star.registry.SimpleRegistry key getBinaryValue:"
+            " underlying RegistryKey size too large",
+            getXWeak());
+    }
+    css::uno::Sequence< sal_Int8 > value(static_cast< sal_Int32 >(size));
+    err = key_->getValue(OUString(), value.getArray());
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getBinaryValue:"
+            " underlying RegistryKey::getValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    return value;
+}
+
+void Key::setBinaryValue(css::uno::Sequence< sal_Int8 > const & value)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->setValue(
+        OUString(), RegValueType::BINARY,
+        const_cast< sal_Int8 * >(value.getConstArray()),
+        static_cast< sal_uInt32 >(value.getLength()));
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key setBinaryValue:"
+            " underlying RegistryKey::setValue() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Reference< css::registry::XRegistryKey > Key::openKey(
+    OUString const & aKeyName)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryKey key;
+    RegError err = key_->openKey(aKeyName, key);
+    switch (err) {
+    case RegError::NO_ERROR:
+        return new Key(registry_, key);
+    case RegError::KEY_NOT_EXISTS:
+        return css::uno::Reference< css::registry::XRegistryKey >();
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key openKey:"
+            " underlying RegistryKey::openKey() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Reference< css::registry::XRegistryKey > Key::createKey(
+    OUString const & aKeyName)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryKey key;
+    RegError err = key_->createKey(aKeyName, key);
+    switch (err) {
+    case RegError::NO_ERROR:
+        return new Key(registry_, key);
+    case RegError::INVALID_KEYNAME:
+        return css::uno::Reference< css::registry::XRegistryKey >();
+    default:
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key createKey:"
+            " underlying RegistryKey::createKey() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+void Key::closeKey()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->closeKey();
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key closeKey:"
+            " underlying RegistryKey::closeKey() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+void Key::deleteKey(OUString const & rKeyName)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegError err = key_->deleteKey(rKeyName);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key deleteKey:"
+            " underlying RegistryKey::deleteKey() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Sequence< css::uno::Reference< css::registry::XRegistryKey > >
+Key::openKeys()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryKeyArray list;
+    RegError err = key_->openSubKeys(OUString(), list);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key openKeys:"
+            " underlying RegistryKey::openSubKeys() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    sal_uInt32 n = list.getLength();
+    if (n > SAL_MAX_INT32) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getKeyNames:"
+            " underlying RegistryKey::getKeyNames() too large",
+            getXWeak());
+    }
+    css::uno::Sequence< css::uno::Reference< css::registry::XRegistryKey > >
+        keys(static_cast< sal_Int32 >(n));
+    auto aKeysRange = asNonConstRange(keys);
+    for (sal_uInt32 i = 0; i < n; ++i) {
+        aKeysRange[static_cast< sal_Int32 >(i)] = new Key(
+            registry_, list.getElement(i));
+    }
+    return keys;
+}
+
+css::uno::Sequence< OUString > Key::getKeyNames()
+{
+    std::scoped_lock guard(registry_->mutex_);
+    RegistryKeyNames list;
+    RegError err = key_->getKeyNames(OUString(), list);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getKeyNames:"
+            " underlying RegistryKey::getKeyNames() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    sal_uInt32 n = list.getLength();
+    if (n > SAL_MAX_INT32) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getKeyNames:"
+            " underlying RegistryKey::getKeyNames() too large",
+            getXWeak());
+    }
+    css::uno::Sequence< OUString > names(static_cast< sal_Int32 >(n));
+    auto aNamesRange = asNonConstRange(names);
+    for (sal_uInt32 i = 0; i < n; ++i) {
+        aNamesRange[static_cast< sal_Int32 >(i)] = list.getElement(i);
+    }
+    return names;
+}
+
+sal_Bool Key::createLink(
+    OUString const & /*aLinkName*/, OUString const & /*aLinkTarget*/)
+{
+    throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key createLink: links are no longer supported",
+            getXWeak());
+}
+
+void Key::deleteLink(OUString const & /*rLinkName*/)
+{
+    throw css::registry::InvalidRegistryException(
+        "com.sun.star.registry.SimpleRegistry key deleteLink: links are no longer supported",
+        getXWeak());
+}
+
+OUString Key::getLinkTarget(OUString const & /*rLinkName*/)
+{
+    throw css::registry::InvalidRegistryException(
+        "com.sun.star.registry.SimpleRegistry key getLinkTarget: links are no longer supported",
+        getXWeak());
+}
+
+OUString Key::getResolvedName(OUString const & aKeyName)
+{
+    std::scoped_lock guard(registry_->mutex_);
+    OUString resolved;
+    RegError err = key_->getResolvedKeyName(aKeyName, resolved);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry key getResolvedName:"
+            " underlying RegistryKey::getResolvedName() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    return resolved;
+}
+
+OUString SimpleRegistry::getURL() {
+    std::scoped_lock guard(mutex_);
+    return registry_->getName();
+}
+
+void SimpleRegistry::open(
+    OUString const & rURL, sal_Bool bReadOnly, sal_Bool bCreate)
+{
+    std::scoped_lock guard(mutex_);
+    RegError err = (rURL.isEmpty() && bCreate)
+        ? RegError::REGISTRY_NOT_EXISTS
+        : registry_->open(rURL, bReadOnly ? RegAccessMode::READONLY : RegAccessMode::READWRITE);
+    if (err == RegError::REGISTRY_NOT_EXISTS && bCreate) {
+        err = registry_->create(rURL);
+    }
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry.open(" + rURL +
+             "): underlying Registry::open/create() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+sal_Bool SimpleRegistry::isValid() {
+    std::scoped_lock guard(mutex_);
+    return registry_->isValid();
+}
+
+void SimpleRegistry::close()
+{
+    std::scoped_lock guard(mutex_);
+    RegError err = registry_->close();
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry.close:"
+            " underlying Registry::close() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+void SimpleRegistry::destroy()
+{
+    std::scoped_lock guard(mutex_);
+    RegError err = registry_->destroy(OUString());
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry.destroy:"
+            " underlying Registry::destroy() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+}
+
+css::uno::Reference< css::registry::XRegistryKey > SimpleRegistry::getRootKey()
+{
+    std::scoped_lock guard(mutex_);
+    RegistryKey root;
+    RegError err = registry_->openRootKey(root);
+    if (err != RegError::NO_ERROR) {
+        throw css::registry::InvalidRegistryException(
+            "com.sun.star.registry.SimpleRegistry.getRootKey:"
+            " underlying Registry::getRootKey() = " + OUString::number(static_cast<int>(err)),
+            getXWeak());
+    }
+    return new Key(this, root);
+}
+
+sal_Bool SimpleRegistry::isReadOnly()
+{
+    std::scoped_lock guard(mutex_);
+    return registry_->isReadOnly();
+}
+
+void SimpleRegistry::mergeKey(
+    OUString const &, OUString const &)
+{
+    throw css::uno::RuntimeException("css.registry.SimpleRegistry::mergeKey: not implemented");
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_stoc_SimpleRegistry_get_implementation(
+    SAL_UNUSED_PARAMETER css::uno::XComponentContext *,
+    css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new SimpleRegistry);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/typeconv/convert.cxx b/stoc/source/typeconv/convert.cxx
new file mode 100644
index 0000000000..c3cd1b9997
--- /dev/null
+++ b/stoc/source/typeconv/convert.cxx
@@ -0,0 +1,872 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <o3tl/any.hxx>
+#include <o3tl/safeint.hxx>
+#include <o3tl/string_view.hxx>
+#include <o3tl/underlyingenumvalue.hxx>
+#include <osl/diagnose.h>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <typelib/typedescription.hxx>
+#include <uno/data.h>
+
+#ifdef _WIN32
+#include <cmath>
+#else
+#include <math.h>
+#endif
+#include <float.h>
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/script/CannotConvertException.hpp>
+#include <com/sun/star/script/XTypeConverter.hpp>
+#include <com/sun/star/script/FailReason.hpp>
+
+namespace com::sun::star::uno { class XComponentContext; }
+
+using namespace css::uno;
+using namespace css::lang;
+using namespace css::script;
+using namespace cppu;
+using namespace osl;
+
+namespace stoc_tcv
+{
+
+static double round( double aVal )
+{
+    bool bPos   = (aVal >= 0.0);
+    aVal            = ::fabs( aVal );
+    double aUpper   = ::ceil( aVal );
+
+    aVal            = ((aUpper-aVal) <= 0.5) ? aUpper : (aUpper - 1.0);
+    return (bPos ? aVal : -aVal);
+}
+
+
+static bool getNumericValue( double & rfVal, std::u16string_view rStr )
+{
+    double fRet = o3tl::toDouble(rStr);
+    if (fRet == 0.0)
+    {
+        size_t nLen = rStr.size();
+        if (!nLen || (nLen == 1 && rStr[0] == '0')) // common case
+        {
+            rfVal = 0.0;
+            return true;
+        }
+
+        std::u16string_view trim( o3tl::trim(rStr) );
+
+        // try hex
+        size_t nX = trim.find( 'x' );
+        if (nX == std::u16string_view::npos)
+            nX = trim.find( 'X' );
+
+        if (nX > 0 && nX != std::u16string_view::npos && trim[nX-1] == '0') // 0x
+        {
+            bool bNeg = false;
+            switch (nX)
+            {
+            case 2: // (+|-)0x...
+                if (trim[0] == '-')
+                    bNeg = true;
+                else if (trim[0] != '+')
+                    return false;
+                break;
+            case 1: // 0x...
+                break;
+            default:
+                return false;
+            }
+
+            OUString aHexRest( trim.substr( nX+1 ) );
+            sal_uInt64 nRet = aHexRest.toUInt64( 16 );
+
+            if (nRet == 0)
+            {
+                for ( sal_Int32 nPos = aHexRest.getLength(); nPos--; )
+                {
+                    if (aHexRest[nPos] != '0')
+                        return false;
+                }
+            }
+
+            rfVal = (bNeg ? -static_cast<double>(nRet) : static_cast<double>(nRet));
+            return true;
+        }
+
+        nLen = trim.size();
+        size_t nPos = 0;
+
+        // skip +/-
+        if (nLen && (trim[0] == '-' || trim[0] == '+'))
+            ++nPos;
+
+        while (nPos < nLen) // skip leading zeros
+        {
+            if (trim[nPos] != '0')
+            {
+                if (trim[nPos] != '.')
+                    return false;
+                ++nPos;
+                while (nPos < nLen) // skip trailing zeros
+                {
+                    if (trim[nPos] != '0')
+                        return false;
+                    ++nPos;
+                }
+                break;
+            }
+            ++nPos;
+        }
+    }
+    rfVal = fRet;
+    return true;
+}
+
+
+static bool getHyperValue( sal_Int64 & rnVal, std::u16string_view rStr )
+{
+    size_t nLen = rStr.size();
+    if (!nLen || (nLen == 1 && rStr[0] == '0')) // common case
+    {
+        rnVal = 0;
+        return true;
+    }
+
+    std::u16string_view trim( o3tl::trim(rStr) );
+
+    // try hex
+    size_t nX = trim.find( 'x' );
+    if (nX == std::u16string_view::npos)
+        nX = trim.find( 'X' );
+
+    if (nX != std::u16string_view::npos)
+    {
+        if (nX > 0 && trim[nX-1] == '0') // 0x
+        {
+            bool bNeg = false;
+            switch (nX)
+            {
+            case 2: // (+|-)0x...
+                if (trim[0] == '-')
+                    bNeg = true;
+                else if (trim[0] != '+')
+                    return false;
+                break;
+            case 1: // 0x...
+                break;
+            default:
+                return false;
+            }
+
+            OUString aHexRest( trim.substr( nX+1 ) );
+            sal_uInt64 nRet = aHexRest.toUInt64( 16 );
+
+            if (nRet == 0)
+            {
+                for ( sal_Int32 nPos = aHexRest.getLength(); nPos--; )
+                {
+                    if (aHexRest[nPos] != '0')
+                        return false;
+                }
+            }
+
+            rnVal = (bNeg ? -static_cast<sal_Int64>(nRet) : nRet);
+            return true;
+        }
+        return false;
+    }
+
+    double fVal;
+    if (getNumericValue( fVal, rStr ) &&
+        fVal >= double(SAL_MIN_INT64) &&
+        fVal <= double(SAL_MAX_UINT64))
+    {
+        rnVal = static_cast<sal_Int64>(round( fVal ));
+        return true;
+    }
+    return false;
+}
+
+namespace {
+
+class TypeConverter_Impl : public WeakImplHelper< XTypeConverter, XServiceInfo >
+{
+    // ...misc helpers...
+    /// @throws CannotConvertException
+    static sal_Int64 toHyper(
+        const Any& rAny, sal_Int64 min, sal_uInt64 max = SAL_MAX_UINT64 );
+    /// @throws CannotConvertException
+    static double toDouble( const Any& rAny, double min = -DBL_MAX, double max = DBL_MAX );
+
+public:
+    TypeConverter_Impl();
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual  Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+    // XTypeConverter
+    virtual Any SAL_CALL convertTo( const Any& aFrom, const Type& DestinationType ) override;
+    virtual Any SAL_CALL convertToSimpleType( const Any& aFrom, TypeClass aDestinationType ) override;
+};
+
+}
+
+TypeConverter_Impl::TypeConverter_Impl() {}
+
+// XServiceInfo
+OUString TypeConverter_Impl::getImplementationName()
+{
+    return "com.sun.star.comp.stoc.TypeConverter";
+}
+
+// XServiceInfo
+sal_Bool TypeConverter_Impl::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+// XServiceInfo
+Sequence< OUString > TypeConverter_Impl::getSupportedServiceNames()
+{
+    return { "com.sun.star.script.Converter" };
+}
+
+
+sal_Int64 TypeConverter_Impl::toHyper( const Any& rAny, sal_Int64 min, sal_uInt64 max )
+{
+    sal_Int64 nRet;
+    TypeClass aDestinationClass = rAny.getValueTypeClass();
+
+    switch (aDestinationClass)
+    {
+    // ENUM
+    case TypeClass_ENUM:
+        nRet = *static_cast<sal_Int32 const *>(rAny.getValue());
+        break;
+    // BOOL
+    case TypeClass_BOOLEAN:
+        nRet = *o3tl::forceAccess<bool>(rAny) ? 1 : 0;
+        break;
+    // CHAR, BYTE
+    case TypeClass_CHAR:
+        nRet = *o3tl::forceAccess<sal_Unicode>(rAny);
+        break;
+    case TypeClass_BYTE:
+        nRet = *o3tl::forceAccess<sal_Int8>(rAny);
+        break;
+    // SHORT
+    case TypeClass_SHORT:
+        nRet = *o3tl::forceAccess<sal_Int16>(rAny);
+        break;
+    // UNSIGNED SHORT
+    case TypeClass_UNSIGNED_SHORT:
+        nRet = *o3tl::forceAccess<sal_uInt16>(rAny);
+        break;
+    // LONG
+    case TypeClass_LONG:
+        nRet = *o3tl::forceAccess<sal_Int32>(rAny);
+        break;
+    // UNSIGNED LONG
+    case TypeClass_UNSIGNED_LONG:
+        nRet = *o3tl::forceAccess<sal_uInt32>(rAny);
+        break;
+    // HYPER
+    case TypeClass_HYPER:
+        nRet = *o3tl::forceAccess<sal_Int64>(rAny);
+        break;
+    // UNSIGNED HYPER
+    case TypeClass_UNSIGNED_HYPER:
+    {
+        auto const n = *o3tl::forceAccess<sal_uInt64>(rAny);
+        if ((min < 0 || n >= o3tl::make_unsigned(min)) && // lower bound
+            n <= max)                            // upper bound
+        {
+            return static_cast<sal_Int64>(n);
+        }
+        throw CannotConvertException(
+            "UNSIGNED HYPER out of range!",
+            Reference<XInterface>(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+    }
+
+    // FLOAT, DOUBLE
+    case TypeClass_FLOAT:
+    {
+        double fVal = round( *o3tl::forceAccess<float>(rAny) );
+        if (fVal >= min && fVal <= max)
+        {
+            nRet = (fVal >= 0.0 ? static_cast<sal_Int64>(static_cast<sal_uInt64>(fVal)) : static_cast<sal_Int64>(fVal));
+            return nRet;
+        }
+        throw CannotConvertException(
+            "FLOAT out of range!",
+            Reference<XInterface>(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+    }
+    case TypeClass_DOUBLE:
+    {
+        double fVal = round( *o3tl::forceAccess<double>(rAny) );
+        if (fVal >= min && fVal <= max)
+        {
+            nRet = (fVal >= 0.0 ? static_cast<sal_Int64>(static_cast<sal_uInt64>(fVal)) : static_cast<sal_Int64>(fVal));
+            return nRet;
+        }
+        throw CannotConvertException(
+            "DOUBLE out of range!",
+            Reference<XInterface>(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+    }
+
+    // STRING
+    case TypeClass_STRING:
+    {
+        sal_Int64 nVal = SAL_CONST_INT64(0);
+        if (! getHyperValue( nVal, *o3tl::forceAccess<OUString>(rAny) ))
+        {
+            throw CannotConvertException(
+                "invalid STRING value!",
+                Reference<XInterface>(), aDestinationClass, FailReason::IS_NOT_NUMBER, 0 );
+        }
+        nRet = nVal;
+        if (nVal >= min && (nVal < 0 || o3tl::make_unsigned(nVal) <= max))
+            return nRet;
+        throw CannotConvertException(
+            "STRING value out of range!",
+            Reference<XInterface>(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+    }
+
+    default:
+        throw CannotConvertException(
+            "Type " + OUString::number(o3tl::to_underlying(aDestinationClass)) + " is not supported!",
+            Reference<XInterface>(), aDestinationClass, FailReason::TYPE_NOT_SUPPORTED, 0 );
+    }
+
+    if (nRet >= min && (nRet < 0 || o3tl::make_unsigned(nRet) <= max))
+        return nRet;
+    throw CannotConvertException(
+        "VALUE is out of range!",
+        Reference<XInterface>(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+}
+
+
+double TypeConverter_Impl::toDouble( const Any& rAny, double min, double max )
+{
+    double fRet;
+    TypeClass aDestinationClass = rAny.getValueTypeClass();
+
+    switch (aDestinationClass)
+    {
+    // ENUM
+    case TypeClass_ENUM:
+        fRet = *static_cast<sal_Int32 const *>(rAny.getValue());
+        break;
+    // BOOL
+    case TypeClass_BOOLEAN:
+        fRet = *o3tl::forceAccess<bool>(rAny) ? 1.0 : 0.0;
+        break;
+    // CHAR, BYTE
+    case TypeClass_CHAR:
+        fRet = *o3tl::forceAccess<sal_Unicode>(rAny);
+        break;
+    case TypeClass_BYTE:
+        fRet = *o3tl::forceAccess<sal_Int8>(rAny);
+        break;
+    // SHORT
+    case TypeClass_SHORT:
+        fRet = *o3tl::forceAccess<sal_Int16>(rAny);
+        break;
+    // UNSIGNED SHORT
+    case TypeClass_UNSIGNED_SHORT:
+        fRet = *o3tl::forceAccess<sal_uInt16>(rAny);
+        break;
+    // LONG
+    case TypeClass_LONG:
+        fRet = *o3tl::forceAccess<sal_Int32>(rAny);
+        break;
+    // UNSIGNED LONG
+    case TypeClass_UNSIGNED_LONG:
+        fRet = *o3tl::forceAccess<sal_uInt32>(rAny);
+        break;
+    // HYPER
+    case TypeClass_HYPER:
+        fRet = static_cast<double>(*o3tl::forceAccess<sal_Int64>(rAny));
+        break;
+    // UNSIGNED HYPER
+    case TypeClass_UNSIGNED_HYPER:
+        fRet = static_cast<double>(*o3tl::forceAccess<sal_uInt64>(rAny));
+        break;
+    // FLOAT, DOUBLE
+    case TypeClass_FLOAT:
+        fRet = *o3tl::forceAccess<float>(rAny);
+        break;
+    case TypeClass_DOUBLE:
+        fRet = *o3tl::forceAccess<double>(rAny);
+        break;
+
+    // STRING
+    case TypeClass_STRING:
+    {
+        if (! getNumericValue( fRet, *o3tl::forceAccess<OUString>(rAny) ))
+        {
+            throw CannotConvertException(
+                "invalid STRING value!",
+                Reference<XInterface>(), aDestinationClass, FailReason::IS_NOT_NUMBER, 0 );
+        }
+        break;
+    }
+
+    default:
+        throw CannotConvertException(
+            "Type " + OUString::number(o3tl::to_underlying(aDestinationClass)) + " is not supported!",
+            Reference< XInterface >(), aDestinationClass, FailReason::TYPE_NOT_SUPPORTED, 0 );
+    }
+
+    if (fRet >= min && fRet <= max)
+        return fRet;
+    throw CannotConvertException(
+        "VALUE is out of range!",
+        Reference< XInterface >(), aDestinationClass, FailReason::OUT_OF_RANGE, 0 );
+}
+
+
+Any SAL_CALL TypeConverter_Impl::convertTo( const Any& rVal, const Type& aDestType )
+{
+    const Type& aSourceType = rVal.getValueType();
+    if (aSourceType == aDestType)
+        return rVal;
+
+    TypeClass aSourceClass = aSourceType.getTypeClass();
+    TypeClass aDestinationClass = aDestType.getTypeClass();
+
+    Any aRet;
+
+    // convert to...
+    switch (aDestinationClass)
+    {
+    // --- to VOID ------------------------------------------------------------------------------
+    case TypeClass_VOID:
+        return Any();
+    // --- to ANY -------------------------------------------------------------------------------
+    case TypeClass_ANY:
+        return rVal;
+
+    // --- to STRUCT, EXCEPTION ----------------------------------------------------------
+    case TypeClass_STRUCT:
+    case TypeClass_EXCEPTION:
+    {
+        // same types or destination type is derived source type?
+        TypeDescription aSourceTD( aSourceType );
+        TypeDescription aDestTD( aDestType );
+        if (!typelib_typedescription_isAssignableFrom( aDestTD.get(), aSourceTD.get() ))
+        {
+            throw CannotConvertException(
+                "value is not of same or derived type!",
+                Reference< XInterface >(), aDestinationClass,
+                FailReason::SOURCE_IS_NO_DERIVED_TYPE, 0 );
+        }
+        aRet.setValue( rVal.getValue(), aDestTD.get() ); // evtl. .uP.cAsT.
+        break;
+    }
+    // --- to INTERFACE -------------------------------------------------------------------------
+    case TypeClass_INTERFACE:
+    {
+        if (! rVal.hasValue())
+        {
+            // void -> interface (null)
+            void * null_ref = nullptr;
+            // coverity[var_deref_model : FALSE] - null_ref will not be derefed in this case
+            aRet.setValue( &null_ref, aDestType );
+            break;
+        }
+
+        auto ifc = o3tl::tryAccess<css::uno::Reference<css::uno::XInterface>>(
+            rVal);
+        if (!ifc || !ifc->is())
+        {
+            throw CannotConvertException(
+                "value is not interface",
+                Reference< XInterface >(), aDestinationClass, FailReason::NO_SUCH_INTERFACE, 0 );
+        }
+        aRet = (*ifc)->queryInterface(aDestType );
+        if (! aRet.hasValue())
+        {
+            throw CannotConvertException(
+                "value does not implement " + aDestType.getTypeName(),
+                Reference< XInterface >(), aDestinationClass, FailReason::NO_SUCH_INTERFACE, 0 );
+        }
+        break;
+    }
+    // --- to SEQUENCE --------------------------------------------------------------------------
+    case TypeClass_SEQUENCE:
+    {
+        if (aSourceClass==TypeClass_SEQUENCE)
+        {
+            if( aSourceType == aDestType )
+                return rVal;
+
+            TypeDescription aSourceTD( aSourceType );
+            TypeDescription aDestTD( aDestType );
+            // For a sequence type notation "[]...", SequenceTypeDescription in
+            // cppuhelper/source/typemanager.cxx resolves the "..." component type notation part
+            // only lazily, so it could happen here that bad user input (e.g., "[]" or "[]foo" from
+            // a Basic script CreateUnoValue call) leads to a bad but as-of-yet undetected
+            // aDestType, so check it here; this is less likely an issue for the non-sequence type
+            // classes, whose notation is not resolved lazily based on their syntax:
+            if (!aDestTD.is()) {
+                throw css::lang::IllegalArgumentException(
+                    "Bad XTypeConverter::convertTo destination " + aDestType.getTypeName(),
+                    getXWeak(), 1);
+            }
+            typelib_TypeDescription * pSourceElementTD = nullptr;
+            TYPELIB_DANGER_GET(
+                &pSourceElementTD,
+                reinterpret_cast<typelib_IndirectTypeDescription *>(aSourceTD.get())->pType );
+            typelib_TypeDescription * pDestElementTD = nullptr;
+            TYPELIB_DANGER_GET(
+                &pDestElementTD,
+                reinterpret_cast<typelib_IndirectTypeDescription *>(aDestTD.get())->pType );
+
+            sal_uInt32 nPos = (*static_cast<const uno_Sequence * const *>(rVal.getValue()))->nElements;
+            uno_Sequence * pRet = nullptr;
+            uno_sequence_construct(
+                &pRet, aDestTD.get(), nullptr, nPos,
+                reinterpret_cast< uno_AcquireFunc >(cpp_acquire) );
+            aRet.setValue( &pRet, aDestTD.get() );
+            uno_destructData(
+                &pRet, aDestTD.get(),
+                reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
+                // decr ref count
+
+            char * pDestElements = (*static_cast<uno_Sequence * const *>(aRet.getValue()))->elements;
+            const char * pSourceElements =
+                (*static_cast<const uno_Sequence * const *>(rVal.getValue()))->elements;
+
+            while (nPos--)
+            {
+                char * pDestPos = pDestElements + (nPos * pDestElementTD->nSize);
+                const char * pSourcePos = pSourceElements + (nPos * pSourceElementTD->nSize);
+
+                Any aElement(
+                    convertTo( Any( pSourcePos, pSourceElementTD ), pDestElementTD->pWeakRef ) );
+
+                if (!uno_assignData(
+                        pDestPos, pDestElementTD,
+                        (pDestElementTD->eTypeClass == typelib_TypeClass_ANY
+                         ? &aElement
+                         : const_cast< void * >( aElement.getValue() )),
+                        pDestElementTD,
+                        reinterpret_cast< uno_QueryInterfaceFunc >(
+                            cpp_queryInterface),
+                        reinterpret_cast< uno_AcquireFunc >(cpp_acquire),
+                        reinterpret_cast< uno_ReleaseFunc >(cpp_release) ))
+                {
+                    OSL_ASSERT( false );
+                }
+            }
+            TYPELIB_DANGER_RELEASE( pDestElementTD );
+            TYPELIB_DANGER_RELEASE( pSourceElementTD );
+        }
+        break;
+    }
+    // --- to ENUM ------------------------------------------------------------------------------
+    case TypeClass_ENUM:
+    {
+        TypeDescription aEnumTD( aDestType );
+        aEnumTD.makeComplete();
+        sal_Int32 nPos = -1;
+
+        if (aSourceClass==TypeClass_STRING)
+        {
+            for ( nPos = reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->nEnumValues; nPos--; )
+            {
+                if (o3tl::forceAccess<OUString>(rVal)->equalsIgnoreAsciiCase(
+                        OUString::unacquired(&reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->ppEnumNames[nPos]) ))
+                    break;
+            }
+        }
+        else if (aSourceClass!=TypeClass_ENUM && // exclude some unwanted types for toHyper()
+                 aSourceClass!=TypeClass_BOOLEAN &&
+                 aSourceClass!=TypeClass_CHAR)
+        {
+            sal_Int32 nEnumValue = static_cast<sal_Int32>(toHyper( rVal, -sal_Int64(0x80000000), 0x7fffffff ));
+            for ( nPos = reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->nEnumValues; nPos--; )
+            {
+                if (nEnumValue == reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->pEnumValues[nPos])
+                    break;
+            }
+        }
+
+        if (nPos < 0)
+        {
+            throw CannotConvertException(
+                "value cannot be converted to demanded ENUM!",
+                Reference< XInterface >(), aDestinationClass, FailReason::IS_NOT_ENUM, 0 );
+        }
+
+        aRet.setValue(
+            &reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->pEnumValues[nPos],
+            aEnumTD.get() );
+
+        break;
+    }
+
+    default:
+        // else simple type conversion possible?
+        try
+        {
+            aRet = convertToSimpleType( rVal, aDestinationClass );
+        }
+        catch (IllegalArgumentException &)
+        {
+            // ...FailReason::INVALID is thrown
+        }
+    }
+
+    if (aRet.hasValue())
+        return aRet;
+
+    throw CannotConvertException(
+        "conversion not possible!",
+        Reference< XInterface >(), aDestinationClass, FailReason::INVALID, 0 );
+}
+
+
+Any TypeConverter_Impl::convertToSimpleType( const Any& rVal, TypeClass aDestinationClass )
+{
+    switch (aDestinationClass)
+    {
+        // only simple Conversion of _simple_ types
+    case TypeClass_VOID:
+    case TypeClass_BOOLEAN:
+    case TypeClass_BYTE:
+    case TypeClass_SHORT:
+    case TypeClass_UNSIGNED_SHORT:
+    case TypeClass_LONG:
+    case TypeClass_UNSIGNED_LONG:
+    case TypeClass_HYPER:
+    case TypeClass_UNSIGNED_HYPER:
+    case TypeClass_FLOAT:
+    case TypeClass_DOUBLE:
+    case TypeClass_CHAR:
+    case TypeClass_STRING:
+    case TypeClass_ANY:
+        break;
+
+    default:
+        throw IllegalArgumentException(
+            "destination type is not simple!",
+            Reference< XInterface >(), sal_Int16(1) );
+    }
+
+    const Type& aSourceType = rVal.getValueType();
+    TypeClass aSourceClass = aSourceType.getTypeClass();
+    if (aDestinationClass == aSourceClass)
+        return rVal;
+
+    Any aRet;
+
+    // Convert to...
+    switch (aDestinationClass)
+    {
+    // --- to VOID ------------------------------------------------------------------------------
+    case TypeClass_VOID:
+        return Any();
+
+    // --- to ANY -------------------------------------------------------------------------------
+    case TypeClass_ANY:
+        return rVal;
+
+    // --- to BOOL ------------------------------------------------------------------------------
+    case TypeClass_BOOLEAN:
+        switch (aSourceClass)
+        {
+        default:
+            aRet <<= (toDouble( rVal ) != 0.0);
+            break;
+        case TypeClass_ENUM:  // exclude enums
+            break;
+
+        case TypeClass_STRING:
+        {
+            const OUString & aStr = *o3tl::forceAccess<OUString>(rVal);
+            if ( aStr == "0" || aStr.equalsIgnoreAsciiCase( "false" ))
+            {
+                aRet <<= false;
+            }
+            else if ( aStr == "1" || aStr.equalsIgnoreAsciiCase( "true" ))
+            {
+                aRet <<= true;
+            }
+            else
+            {
+                throw CannotConvertException(
+                    "STRING has no boolean value, " + aStr,
+                    Reference< XInterface >(), aDestinationClass, FailReason::IS_NOT_BOOL, 0 );
+            }
+        }
+        }
+        break;
+
+    // --- to CHAR, BYTE ------------------------------------------------------------------------
+    case TypeClass_CHAR:
+    {
+        if (aSourceClass==TypeClass_STRING)
+        {
+            auto const s = o3tl::forceAccess<OUString>(rVal);
+            if (s->getLength() == 1)      // single char
+                aRet <<= (*s)[0];
+        }
+        else if (aSourceClass!=TypeClass_ENUM &&        // exclude enums, chars
+                 aSourceClass!=TypeClass_CHAR)
+        {
+            aRet <<= sal_Unicode(toHyper( rVal, 0, 0xffff ));    // range
+        }
+        break;
+    }
+    case TypeClass_BYTE:
+        aRet <<= static_cast<sal_Int8>( toHyper( rVal, -sal_Int64(0x80), 0x7f ) );
+        break;
+
+    // --- to SHORT, UNSIGNED SHORT -------------------------------------------------------------
+    case TypeClass_SHORT:
+        aRet <<= static_cast<sal_Int16>( toHyper( rVal, -sal_Int64(0x8000), 0x7fff ) );
+        break;
+    case TypeClass_UNSIGNED_SHORT:
+        aRet <<= static_cast<sal_uInt16>( toHyper( rVal, 0, 0xffff ) );
+        break;
+
+    // --- to LONG, UNSIGNED LONG ---------------------------------------------------------------
+    case TypeClass_LONG:
+        aRet <<= static_cast<sal_Int32>( toHyper( rVal, -sal_Int64(0x80000000), 0x7fffffff ) );
+        break;
+    case TypeClass_UNSIGNED_LONG:
+        aRet <<= static_cast<sal_uInt32>( toHyper( rVal, 0, 0xffffffff ) );
+        break;
+
+    // --- to HYPER, UNSIGNED HYPER--------------------------------------------
+    case TypeClass_HYPER:
+        aRet <<= toHyper( rVal, SAL_MIN_INT64, SAL_MAX_INT64 );
+        break;
+    case TypeClass_UNSIGNED_HYPER:
+        aRet <<= static_cast<sal_uInt64>( toHyper( rVal, 0 ) );
+        break;
+
+    // --- to FLOAT, DOUBLE ---------------------------------------------------------------------
+    case TypeClass_FLOAT:
+        aRet <<= static_cast<float>( toDouble( rVal, -FLT_MAX, FLT_MAX ) );
+        break;
+    case TypeClass_DOUBLE:
+        aRet <<= toDouble( rVal, -DBL_MAX, DBL_MAX );
+        break;
+
+    // --- to STRING ----------------------------------------------------------------------------
+    case TypeClass_STRING:
+        switch (aSourceClass)
+        {
+        case TypeClass_ENUM:
+        {
+            TypeDescription aEnumTD( aSourceType );
+            aEnumTD.makeComplete();
+            sal_Int32 nPos;
+            sal_Int32 nEnumValue = *static_cast<sal_Int32 const *>(rVal.getValue());
+            for ( nPos = reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->nEnumValues; nPos--; )
+            {
+                if (nEnumValue == reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->pEnumValues[nPos])
+                    break;
+            }
+            if (nPos < 0)
+            {
+                throw CannotConvertException(
+                    "value is not ENUM!",
+                    Reference< XInterface >(), aDestinationClass, FailReason::IS_NOT_ENUM, 0 );
+            }
+
+            aRet <<= OUString::unacquired(
+                &reinterpret_cast<typelib_EnumTypeDescription *>(aEnumTD.get())->ppEnumNames[nPos]);
+
+            break;
+        }
+
+        case TypeClass_BOOLEAN:
+            aRet <<= *o3tl::forceAccess<bool>(rVal) ?
+                OUString("true") :
+                OUString("false");
+            break;
+        case TypeClass_CHAR:
+            aRet <<= OUString(*o3tl::forceAccess<sal_Unicode>(rVal));
+            break;
+
+        case TypeClass_BYTE:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_Int8>(rVal) );
+            break;
+        case TypeClass_SHORT:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_Int16>(rVal) );
+            break;
+        case TypeClass_UNSIGNED_SHORT:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_uInt16>(rVal) );
+            break;
+        case TypeClass_LONG:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_Int32>(rVal) );
+            break;
+        case TypeClass_UNSIGNED_LONG:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_uInt32>(rVal) );
+            break;
+        case TypeClass_HYPER:
+            aRet <<= OUString::number( *o3tl::forceAccess<sal_Int64>(rVal) );
+            break;
+//      case TypeClass_UNSIGNED_HYPER:
+//             aRet <<= OUString::valueOf( (sal_Int64)*(sal_uInt64 const *)rVal.getValue() );
+//          break;
+            // handle unsigned hyper like double
+
+        default:
+            aRet <<= OUString::number( toDouble( rVal ) );
+        }
+        break;
+
+    default:
+        OSL_ASSERT(false);
+        break;
+    }
+
+    if (aRet.hasValue())
+        return aRet;
+
+    throw CannotConvertException(
+        "conversion not possible!",
+        Reference< XInterface >(), aDestinationClass, FailReason::INVALID, 0 );
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_stoc_TypeConverter_get_implementation(css::uno::XComponentContext*,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    return ::cppu::acquire(new stoc_tcv::TypeConverter_Impl());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx b/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx
new file mode 100644
index 0000000000..b9e2ca4e99
--- /dev/null
+++ b/stoc/source/uriproc/ExternalUriReferenceTranslator.cxx
@@ -0,0 +1,187 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uri/XExternalUriReferenceTranslator.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <osl/thread.h>
+#include <rtl/string.h>
+#include <rtl/textenc.h>
+#include <rtl/uri.h>
+#include <rtl/uri.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star::uno { class XInterface; }
+namespace com::sun::star::uno { class XComponentContext; }
+
+namespace {
+
+class Translator:
+    public cppu::WeakImplHelper<
+        css::lang::XServiceInfo, css::uri::XExternalUriReferenceTranslator>
+{
+public:
+    Translator() {}
+
+    Translator(const Translator&) = delete;
+    Translator& operator=(const Translator&) = delete;
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & serviceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    virtual OUString SAL_CALL
+    translateToInternal(OUString const & externalUriReference) override;
+
+    virtual OUString SAL_CALL
+    translateToExternal(OUString const & internalUriReference) override;
+
+private:
+    virtual ~Translator() override {}
+};
+
+OUString Translator::getImplementationName()
+{
+    return "com.sun.star.comp.uri.ExternalUriReferenceTranslator";
+}
+
+sal_Bool Translator::supportsService(OUString const & serviceName)
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+css::uno::Sequence< OUString > Translator::getSupportedServiceNames()
+{
+    css::uno::Sequence< OUString > s { "com.sun.star.uri.ExternalUriReferenceTranslator" };
+    return s;
+}
+
+OUString Translator::translateToInternal(
+    OUString const & externalUriReference)
+{
+    if (!externalUriReference.matchIgnoreAsciiCase("file:/"))
+    {
+        return externalUriReference;
+    }
+    sal_Int32 i = RTL_CONSTASCII_LENGTH("file:");
+    OUStringBuffer buf(128);
+    buf.append(externalUriReference.subView(0, i));
+    // Some environments (e.g., Java) produce illegal file URLs without an
+    // authority part; treat them as having an empty authority part:
+    if (!externalUriReference.match("//", i))
+    {
+        buf.append("//");
+    }
+    rtl_TextEncoding encoding = osl_getThreadTextEncoding();
+    for (bool path = true;;) {
+        sal_Int32 j = i;
+        while (j != externalUriReference.getLength()
+               && externalUriReference[j] != '#'
+               && (!path || externalUriReference[j] != '/'))
+        {
+            ++j;
+        }
+        if (j != i) {
+            OUString seg(
+                rtl::Uri::encode(
+                    rtl::Uri::decode(
+                        externalUriReference.copy(i, j - i),
+                        rtl_UriDecodeStrict, encoding),
+                    rtl_UriCharClassPchar, rtl_UriEncodeStrict,
+                    RTL_TEXTENCODING_UTF8));
+            if (seg.isEmpty()) {
+                return OUString();
+            }
+            buf.append(seg);
+        }
+        if (j == externalUriReference.getLength()) {
+            break;
+        }
+        buf.append(externalUriReference[j]);
+        path = externalUriReference[j] == '/';
+        i = j + 1;
+    }
+    return buf.makeStringAndClear();
+}
+
+OUString Translator::translateToExternal(
+    OUString const & internalUriReference)
+{
+    if (!internalUriReference.matchIgnoreAsciiCase("file://"))
+    {
+        return internalUriReference;
+    }
+    sal_Int32 i = RTL_CONSTASCII_LENGTH("file://");
+    OUStringBuffer buf(128);
+    buf.append(internalUriReference.subView(0, i));
+    rtl_TextEncoding encoding = osl_getThreadTextEncoding();
+    for (bool path = true;;) {
+        sal_Int32 j = i;
+        while (j != internalUriReference.getLength()
+               && internalUriReference[j] != '#'
+               && (!path || internalUriReference[j] != '/'))
+        {
+            ++j;
+        }
+        if (j != i) {
+            // Use rtl_UriDecodeToIuri -> rtl_UriEncodeStrictKeepEscapes instead
+            // of rtl_UriDecodeStrict -> rtl_UriEncodeStrict, so that spurious
+            // non--UTF-8 octets like "%FE" are copied verbatim:
+            OUString seg(
+                rtl::Uri::encode(
+                    rtl::Uri::decode(
+                        internalUriReference.copy(i, j - i),
+                        rtl_UriDecodeToIuri, RTL_TEXTENCODING_UTF8),
+                    rtl_UriCharClassPchar, rtl_UriEncodeStrictKeepEscapes,
+                    encoding));
+            if (seg.isEmpty()) {
+                return OUString();
+            }
+            buf.append(seg);
+        }
+        if (j == internalUriReference.getLength()) {
+            break;
+        }
+        buf.append(internalUriReference[j]);
+        path = internalUriReference[j] == '/';
+        i = j + 1;
+    }
+    return buf.makeStringAndClear();
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_uri_ExternalUriReferenceTranslator_get_implementation(css::uno::XComponentContext* ,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    return ::cppu::acquire(new Translator);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/UriReference.cxx b/stoc/source/uriproc/UriReference.cxx
new file mode 100644
index 0000000000..fc27201414
--- /dev/null
+++ b/stoc/source/uriproc/UriReference.cxx
@@ -0,0 +1,182 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+
+#include "UriReference.hxx"
+
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <utility>
+#include <sal/types.h>
+
+using stoc::uriproc::UriReference;
+
+UriReference::UriReference(
+    OUString scheme, bool bHasAuthority,
+    OUString const & authority, OUString path,
+    bool bHasQuery, OUString const & query):
+    m_path(std::move(path)),
+    m_scheme(std::move(scheme)),
+    m_authority(authority),
+    m_query(query),
+    m_hasAuthority(bHasAuthority),
+    m_hasQuery(bHasQuery),
+    m_hasFragment(false)
+{
+    assert(authority.isEmpty() || bHasAuthority);
+    assert(query.isEmpty() || bHasQuery);
+}
+
+UriReference::~UriReference() {}
+
+OUString UriReference::getUriReference()
+{
+    std::lock_guard g(m_mutex);
+    OUStringBuffer buf(128);
+    if (!m_scheme.isEmpty()) {
+        buf.append(m_scheme + ":");
+    }
+    appendSchemeSpecificPart(buf);
+    if (m_hasFragment) {
+        buf.append("#" + m_fragment);
+    }
+    return buf.makeStringAndClear();
+}
+
+bool UriReference::isAbsolute() const {
+    return !m_scheme.isEmpty();
+}
+
+
+OUString UriReference::getSchemeSpecificPart()
+{
+    std::lock_guard g(m_mutex);
+    OUStringBuffer buf;
+    appendSchemeSpecificPart(buf);
+    return buf.makeStringAndClear();
+}
+
+bool UriReference::isHierarchical() {
+    std::lock_guard g(m_mutex);
+    return m_scheme.isEmpty() || m_hasAuthority || m_path.startsWith("/");
+}
+
+bool UriReference::hasAuthority() const {
+    return m_hasAuthority;
+}
+
+const OUString& UriReference::getAuthority() const {
+    return m_authority;
+}
+
+OUString UriReference::getPath() {
+    std::lock_guard g(m_mutex);
+    return m_path;
+}
+
+bool UriReference::hasRelativePath() {
+    std::lock_guard g(m_mutex);
+    return !m_hasAuthority
+        && (m_path.isEmpty() || m_path[0] != '/');
+}
+
+sal_Int32 UriReference::getPathSegmentCount()
+{
+    std::lock_guard g(m_mutex);
+    if (m_path.isEmpty()) {
+        return 0;
+    } else {
+        sal_Int32 n = m_path[0] == '/' ? 0 : 1;
+        for (sal_Int32 i = 0;; ++i) {
+            i = m_path.indexOf('/', i);
+            if (i < 0) {
+                break;
+            }
+            ++n;
+        }
+        return n;
+    }
+}
+
+OUString UriReference::getPathSegment(sal_Int32 index)
+{
+    std::lock_guard g(m_mutex);
+    if (!m_path.isEmpty() && index >= 0) {
+        for (sal_Int32 i = m_path[0] == '/' ? 1 : 0;; ++i) {
+            if (index-- == 0) {
+                sal_Int32 j = m_path.indexOf('/', i);
+                return j < 0 ? m_path.copy(i) : m_path.copy(i, j - i);
+            }
+            i = m_path.indexOf('/', i);
+            if (i < 0) {
+                break;
+            }
+        }
+    }
+    return OUString();
+}
+
+bool UriReference::hasQuery() const {
+    return m_hasQuery;
+}
+
+const OUString& UriReference::getQuery() const {
+    return m_query;
+}
+
+bool UriReference::hasFragment() {
+    std::lock_guard g(m_mutex);
+    return m_hasFragment;
+}
+
+OUString UriReference::getFragment() {
+    std::lock_guard g(m_mutex);
+    return m_fragment;
+}
+
+void UriReference::setFragment(OUString const & fragment)
+{
+    std::lock_guard g(m_mutex);
+    m_hasFragment = true;
+    m_fragment = fragment;
+}
+
+void UriReference::clearFragment() {
+    std::lock_guard g(m_mutex);
+    m_hasFragment = false;
+    m_fragment.clear();
+}
+
+void UriReference::appendSchemeSpecificPart(OUStringBuffer & buffer) const
+{
+    if (m_hasAuthority) {
+        buffer.append("//");
+        buffer.append(m_authority);
+    }
+    buffer.append(m_path);
+    if (m_hasQuery) {
+        buffer.append('?');
+        buffer.append(m_query);
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/UriReference.hxx b/stoc/source/uriproc/UriReference.hxx
new file mode 100644
index 0000000000..1b373f56a7
--- /dev/null
+++ b/stoc/source/uriproc/UriReference.hxx
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_STOC_SOURCE_URIPROC_URIREFERENCE_HXX
+#define INCLUDED_STOC_SOURCE_URIPROC_URIREFERENCE_HXX
+
+#include <mutex>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <rtl/ustrbuf.hxx>
+
+namespace stoc::uriproc {
+
+class UriReference {
+public:
+    UriReference(
+        OUString scheme, bool hasAuthority,
+        OUString const & authority, OUString path,
+        bool hasQuery, OUString const & query);
+
+    ~UriReference();
+
+    /// @throws css::uno::RuntimeException
+    OUString getUriReference();
+
+    /// @throws css::uno::RuntimeException
+    bool isAbsolute() const;
+
+    /// @throws css::uno::RuntimeException
+    const OUString& getScheme() const { return m_scheme;}
+
+    /// @throws css::uno::RuntimeException
+    OUString getSchemeSpecificPart();
+
+    /// @throws css::uno::RuntimeException
+    bool isHierarchical();
+
+    /// @throws css::uno::RuntimeException
+    bool hasAuthority() const;
+
+    /// @throws css::uno::RuntimeException
+    const OUString& getAuthority() const;
+
+    /// @throws css::uno::RuntimeException
+    OUString getPath();
+
+    /// @throws css::uno::RuntimeException
+    bool hasRelativePath();
+
+    /// @throws css::uno::RuntimeException
+    sal_Int32 getPathSegmentCount();
+
+    /// @throws css::uno::RuntimeException
+    OUString getPathSegment(sal_Int32 index);
+
+    /// @throws css::uno::RuntimeException
+    bool hasQuery() const;
+
+    /// @throws css::uno::RuntimeException
+    const OUString& getQuery() const;
+
+    /// @throws css::uno::RuntimeException
+    bool hasFragment();
+
+    /// @throws css::uno::RuntimeException
+    OUString getFragment();
+
+    /// @throws css::uno::RuntimeException
+    void setFragment(OUString const & fragment);
+
+    /// @throws css::uno::RuntimeException
+    void clearFragment();
+
+    std::mutex m_mutex;
+    OUString m_path;
+
+private:
+    UriReference(UriReference const &) = delete;
+    void operator =(UriReference const &) = delete;
+
+    void appendSchemeSpecificPart(OUStringBuffer & buffer) const;
+
+    OUString m_scheme;
+    OUString m_authority;
+    OUString m_query;
+    OUString m_fragment;
+    bool m_hasAuthority;
+    bool m_hasQuery;
+    bool m_hasFragment;
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/UriReferenceFactory.cxx b/stoc/source/uriproc/UriReferenceFactory.cxx
new file mode 100644
index 0000000000..2573917713
--- /dev/null
+++ b/stoc/source/uriproc/UriReferenceFactory.cxx
@@ -0,0 +1,701 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <algorithm>
+#include <cassert>
+#include <cstddef>
+#include <string_view>
+#include <utility>
+#include <vector>
+
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/lang/XMultiComponentFactory.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Exception.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/uno/XInterface.hpp>
+#include <com/sun/star/uri/RelativeUriExcessParentSegments.hpp>
+#include <com/sun/star/uri/XUriReference.hpp>
+#include <com/sun/star/uri/XUriReferenceFactory.hpp>
+#include <com/sun/star/uri/XUriSchemeParser.hpp>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <rtl/character.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+#include "UriReference.hxx"
+
+namespace {
+
+bool equalIgnoreEscapeCase(std::u16string_view s1, std::u16string_view s2) {
+    if (s1.size() == s2.size()) {
+        for (size_t i = 0; i < s1.size();) {
+            if (s1[i] == '%' && s2[i] == '%' && s1.size() - i > 2
+                && rtl::isAsciiHexDigit(s1[i + 1])
+                && rtl::isAsciiHexDigit(s1[i + 2])
+                && rtl::isAsciiHexDigit(s2[i + 1])
+                && rtl::isAsciiHexDigit(s2[i + 2])
+                && rtl::compareIgnoreAsciiCase(s1[i + 1], s2[i + 1]) == 0
+                && rtl::compareIgnoreAsciiCase(s1[i + 2], s2[i + 2]) == 0)
+            {
+                i += 3;
+            } else if (s1[i] != s2[i]) {
+                return false;
+            } else {
+                ++i;
+            }
+        }
+        return true;
+    } else {
+        return false;
+    }
+}
+
+sal_Int32 parseScheme(std::u16string_view uriReference) {
+    if (uriReference.size() >= 2 && rtl::isAsciiAlpha(uriReference[0])) {
+        for (size_t i = 0; i < uriReference.size(); ++i) {
+            sal_Unicode c = uriReference[i];
+            if (c == ':') {
+                return i;
+            } else if (!rtl::isAsciiAlpha(c) && !rtl::isAsciiDigit(c)
+                       && c != '+' && c != '-' && c != '.')
+            {
+                break;
+            }
+        }
+    }
+    return -1;
+}
+
+class UriReference:
+    public cppu::WeakImplHelper<css::uri::XUriReference>
+{
+public:
+    UriReference(
+        OUString const & scheme, bool bHasAuthority,
+        OUString const & authority, OUString const & path,
+        bool bHasQuery, OUString const & query):
+        m_base(
+            scheme, bHasAuthority, authority, path, bHasQuery,
+            query)
+    {}
+
+    UriReference(const UriReference&) = delete;
+    UriReference& operator=(const UriReference&) = delete;
+
+    virtual OUString SAL_CALL getUriReference() override
+    { return m_base.getUriReference(); }
+
+    virtual sal_Bool SAL_CALL isAbsolute() override
+    { return m_base.isAbsolute(); }
+
+    virtual OUString SAL_CALL getScheme() override
+    { return m_base.getScheme(); }
+
+    virtual OUString SAL_CALL getSchemeSpecificPart() override
+    { return m_base.getSchemeSpecificPart(); }
+
+    virtual sal_Bool SAL_CALL isHierarchical() override
+    { return m_base.isHierarchical(); }
+
+    virtual sal_Bool SAL_CALL hasAuthority() override
+    { return m_base.hasAuthority(); }
+
+    virtual OUString SAL_CALL getAuthority() override
+    { return m_base.getAuthority(); }
+
+    virtual OUString SAL_CALL getPath() override
+    { return m_base.getPath(); }
+
+    virtual sal_Bool SAL_CALL hasRelativePath() override
+    { return m_base.hasRelativePath(); }
+
+    virtual sal_Int32 SAL_CALL getPathSegmentCount() override
+    { return m_base.getPathSegmentCount(); }
+
+    virtual OUString SAL_CALL getPathSegment(sal_Int32 index) override
+    { return m_base.getPathSegment(index); }
+
+    virtual sal_Bool SAL_CALL hasQuery() override
+    { return m_base.hasQuery(); }
+
+    virtual OUString SAL_CALL getQuery() override
+    { return m_base.getQuery(); }
+
+    virtual sal_Bool SAL_CALL hasFragment() override
+    { return m_base.hasFragment(); }
+
+    virtual OUString SAL_CALL getFragment() override
+    { return m_base.getFragment(); }
+
+    virtual void SAL_CALL setFragment(OUString const & fragment) override
+    { m_base.setFragment(fragment); }
+
+    virtual void SAL_CALL clearFragment() override
+    { m_base.clearFragment(); }
+
+private:
+    virtual ~UriReference() override {}
+
+    stoc::uriproc::UriReference m_base;
+};
+
+css::uno::Reference< css::uri::XUriReference > parseGeneric(
+    OUString const & scheme, OUString const & schemeSpecificPart)
+{
+    sal_Int32 len = schemeSpecificPart.getLength();
+    sal_Int32 i = 0;
+    bool hasAuthority = false;
+    OUString authority;
+    if (len - i >= 2 && schemeSpecificPart[i] == '/'
+        && schemeSpecificPart[i + 1] == '/')
+    {
+        i += 2;
+        sal_Int32 n = i;
+        while (i < len && schemeSpecificPart[i] != '/'
+               && schemeSpecificPart[i] != '?') {
+            ++i;
+        }
+        hasAuthority = true;
+        authority = schemeSpecificPart.copy(n, i - n);
+    }
+    sal_Int32 n = i;
+    i = schemeSpecificPart.indexOf('?', i);
+    if (i == -1) {
+        i = len;
+    }
+    OUString path = schemeSpecificPart.copy(n, i - n);
+    bool hasQuery = false;
+    OUString query;
+    if (i != len) {
+        hasQuery = true;
+        query = schemeSpecificPart.copy(i + 1);
+    }
+    return new UriReference(
+        scheme, hasAuthority, authority, path, hasQuery, query);
+}
+
+struct Segment {
+    bool leadingSlash;
+    bool excessParent;
+    std::u16string_view segment;
+
+    Segment(bool theLeadingSlash, bool theExcessParent, std::u16string_view theSegment):
+        leadingSlash(theLeadingSlash), excessParent(theExcessParent), segment(theSegment) {}
+};
+
+std::pair<std::vector<Segment>, bool> processSegments(
+    std::u16string_view first, std::u16string_view second, bool processSpecialSegments)
+{
+    std::vector<Segment> segments;
+    bool processed = false;
+    std::u16string_view const * half = &first;
+        // later checks for `half == &first` and `half == &second` rely on the fact that `first` and
+        // `second` are passed by value, in case a caller passes the same object for both arguments
+    std::size_t index = 0;
+    bool slash = false;
+    if (index == half->length()) {
+        half = &second;
+        index = 0;
+    }
+    if (index != half->length()) {
+        if ((*half)[index] == u'/') {
+            slash = true;
+            ++index;
+        }
+        for (;;) {
+            if (index == half->length() && half == &first) {
+                half = &second;
+                index = 0;
+            }
+            if (index == half->length()) {
+                if (slash) {
+                    segments.emplace_back(true, false, std::u16string_view());
+                }
+                break;
+            }
+            auto const n = std::min(half->find(u'/', index), half->length());
+            auto const leadingSlash = slash;
+            auto const segment = half->substr(index, n - index);
+            auto const process = processSpecialSegments || half == &second;
+            index = n;
+            slash = false;
+            if (index == half->length() && half == &first) {
+                half = &second;
+                index = 0;
+            }
+            if (index != half->length() && (*half)[index] == u'/') {
+                slash = true;
+                ++index;
+            }
+            if (process) {
+                if (segment == u".") {
+                    slash = leadingSlash;
+                    processed = true;
+                    continue;
+                } else if (segment == u"..") {
+                    if (segments.empty() || segments.back().excessParent) {
+                        segments.emplace_back(leadingSlash, true, segment);
+                    } else {
+                        if (leadingSlash) {
+                            segments.pop_back();
+                        }
+                        slash = leadingSlash;
+                    }
+                    processed = true;
+                    continue;
+                }
+            }
+            segments.emplace_back(leadingSlash, false, segment);
+        }
+    }
+    return {segments, processed};
+}
+
+class Factory:
+    public cppu::WeakImplHelper<
+        css::lang::XServiceInfo, css::uri::XUriReferenceFactory>
+{
+public:
+    explicit Factory(
+        css::uno::Reference< css::uno::XComponentContext > context):
+        m_context(std::move(context)) {}
+
+    Factory(const Factory&) = delete;
+    Factory& operator=(const Factory&) = delete;
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & serviceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    parse(OUString const & uriReference) override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    makeAbsolute(
+        css::uno::Reference< css::uri::XUriReference > const & baseUriReference,
+        css::uno::Reference< css::uri::XUriReference > const & uriReference,
+        sal_Bool processAdditionalSpecialSegments,
+        css::uri::RelativeUriExcessParentSegments excessParentSegments) override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    makeRelative(
+        css::uno::Reference< css::uri::XUriReference > const & baseUriReference,
+        css::uno::Reference< css::uri::XUriReference > const & uriReference,
+        sal_Bool preferAuthorityOverRelativePath,
+        sal_Bool preferAbsoluteOverRelativePath,
+        sal_Bool encodeRetainedSpecialSegments) override;
+
+private:
+    virtual ~Factory() override {}
+
+    css::uno::Reference< css::uri::XUriReference > clone(
+        css::uno::Reference< css::uri::XUriReference > const & uriReference)
+    { return parse(uriReference->getUriReference()); }
+
+    css::uno::Reference< css::uno::XComponentContext > m_context;
+};
+
+OUString Factory::getImplementationName()
+{
+    return "com.sun.star.comp.uri.UriReferenceFactory";
+}
+
+sal_Bool Factory::supportsService(OUString const & serviceName)
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+css::uno::Sequence< OUString > Factory::getSupportedServiceNames()
+{
+    css::uno::Sequence< OUString > s { "com.sun.star.uri.UriReferenceFactory" };
+    return s;
+}
+
+css::uno::Reference< css::uri::XUriReference > Factory::parse(
+    OUString const & uriReference)
+{
+    sal_Int32 fragment = uriReference.indexOf('#');
+    if (fragment == -1) {
+        fragment = uriReference.getLength();
+    }
+    OUString scheme;
+    OUString schemeSpecificPart;
+    OUString serviceName;
+    sal_Int32 n = parseScheme(uriReference);
+    assert(n < fragment);
+    if (n >= 0) {
+        scheme = uriReference.copy(0, n);
+        schemeSpecificPart = uriReference.copy(n + 1, fragment - (n + 1));
+        OUStringBuffer buf(128);
+        buf.append("com.sun.star.uri.UriSchemeParser_");
+        for (sal_Int32 i = 0; i < scheme.getLength(); ++i) {
+            sal_Unicode c = scheme[i];
+            if (rtl::isAsciiUpperCase(c)) {
+                buf.append(static_cast<sal_Unicode>(rtl::toAsciiLowerCase(c)));
+            } else if (c == '+') {
+                buf.append("PLUS");
+            } else if (c == '-') {
+                buf.append("HYPHEN");
+            } else if (c == '.') {
+                buf.append("DOT");
+            } else {
+                assert(rtl::isAsciiLowerCase(c) || rtl::isAsciiDigit(c));
+                buf.append(c);
+            }
+        }
+        serviceName = buf.makeStringAndClear();
+    } else {
+        schemeSpecificPart = uriReference.copy(0, fragment);
+    }
+    css::uno::Reference< css::uri::XUriSchemeParser > parser;
+    if (!serviceName.isEmpty()) {
+        css::uno::Reference< css::lang::XMultiComponentFactory > factory(
+            m_context->getServiceManager());
+        if (factory.is()) {
+            css::uno::Reference< css::uno::XInterface > service;
+            try {
+                service = factory->createInstanceWithContext(
+                    serviceName, m_context);
+            } catch (css::uno::RuntimeException &) {
+                throw;
+            } catch (const css::uno::Exception &) {
+                css::uno::Any anyEx = cppu::getCaughtException();
+                throw css::lang::WrappedTargetRuntimeException(
+                    "creating service " + serviceName,
+                    getXWeak(),
+                    anyEx);
+            }
+            if (service.is()) {
+                parser.set( service, css::uno::UNO_QUERY_THROW);
+            }
+        }
+    }
+    css::uno::Reference< css::uri::XUriReference > uriRef(
+        parser.is()
+        ? parser->parse(scheme, schemeSpecificPart)
+        : parseGeneric(scheme, schemeSpecificPart));
+    if (uriRef.is() && fragment != uriReference.getLength()) {
+        uriRef->setFragment(uriReference.copy(fragment + 1));
+    }
+    return uriRef;
+}
+
+css::uno::Reference< css::uri::XUriReference > Factory::makeAbsolute(
+    css::uno::Reference< css::uri::XUriReference > const & baseUriReference,
+    css::uno::Reference< css::uri::XUriReference > const & uriReference,
+    sal_Bool processAdditionalSpecialSegments,
+    css::uri::RelativeUriExcessParentSegments excessParentSegments)
+{
+    if (!baseUriReference.is() || !baseUriReference->isAbsolute()
+        || !uriReference.is()) {
+        return nullptr;
+    } else if (uriReference->isAbsolute()) {
+        if (processAdditionalSpecialSegments) {
+            auto const path = uriReference->getPath();
+            auto [segments, proc] = processSegments(path, {}, true);
+            if (proc) {
+                OUStringBuffer abs(uriReference->getScheme() + ":");
+                if (uriReference->hasAuthority()) {
+                    abs.append("//" + uriReference->getAuthority());
+                }
+                for (auto const & i : segments)
+                {
+                    if (i.excessParent) {
+                        switch (excessParentSegments) {
+                        case css::uri::RelativeUriExcessParentSegments_ERROR:
+                            return nullptr;
+
+                        case css::uri::RelativeUriExcessParentSegments_RETAIN:
+                            assert(i.segment == u"..");
+                            break;
+
+                        case css::uri::RelativeUriExcessParentSegments_REMOVE:
+                            continue;
+
+                        default:
+                            assert(false);
+                            break;
+                        }
+                    }
+                    if (i.leadingSlash) {
+                        abs.append('/');
+                    }
+                    abs.append(i.segment);
+                }
+                if (uriReference->hasQuery()) {
+                    abs.append("?" + uriReference->getQuery());
+                }
+                if (uriReference->hasFragment()) {
+                    abs.append("#" + uriReference->getFragment());
+                }
+                return parse(abs.makeStringAndClear());
+            }
+        }
+        return clone(uriReference);
+    } else if (!uriReference->hasAuthority()
+               && uriReference->getPath().isEmpty()) {
+        OUStringBuffer abs(baseUriReference->getScheme() + ":");
+        if (baseUriReference->hasAuthority()) {
+            abs.append("//" + baseUriReference->getAuthority());
+        }
+        abs.append(baseUriReference->getPath());
+        if (uriReference->hasQuery()) {
+            abs.append("?" + uriReference->getQuery());
+        } else if (baseUriReference->hasQuery()) {
+            abs.append("?" + baseUriReference->getQuery());
+        }
+        if (uriReference->hasFragment()) {
+            abs.append("#" + uriReference->getFragment());
+        }
+        return parse(abs.makeStringAndClear());
+    } else {
+        OUStringBuffer abs(128);
+        abs.append(baseUriReference->getScheme() + ":");
+        if (uriReference->hasAuthority()) {
+            abs.append("//" + uriReference->getAuthority());
+        } else if (baseUriReference->hasAuthority()) {
+            abs.append("//" + baseUriReference->getAuthority());
+        }
+        if (uriReference->hasRelativePath()) {
+            auto path1 = baseUriReference->getPath();
+            if (path1.isEmpty()) {
+                if (baseUriReference->hasAuthority()) {
+                    path1 = "/";
+                }
+            } else {
+                path1 = path1.copy(0, path1.lastIndexOf('/') + 1);
+            }
+            auto const path2 = uriReference->getPath();
+            auto [segments, _] = processSegments(path1, path2, processAdditionalSpecialSegments);
+            (void)_;
+            for (auto const & i : segments)
+            {
+                if (i.excessParent) {
+                    switch (excessParentSegments) {
+                    case css::uri::RelativeUriExcessParentSegments_ERROR:
+                        return nullptr;
+
+                    case css::uri::RelativeUriExcessParentSegments_RETAIN:
+                        assert(i.segment == u"..");
+                        break;
+
+                    case css::uri::RelativeUriExcessParentSegments_REMOVE:
+                        continue;
+
+                    default:
+                        assert(false);
+                        break;
+                    }
+                }
+                if (i.leadingSlash) {
+                    abs.append('/');
+                }
+                abs.append(i.segment);
+            }
+        } else {
+            bool processed = false;
+            if (processAdditionalSpecialSegments) {
+                auto const path = uriReference->getPath();
+                auto [segments, proc] = processSegments(path, {}, true);
+                if (proc) {
+                    for (auto const & i : segments)
+                    {
+                        if (i.excessParent) {
+                            switch (excessParentSegments) {
+                            case css::uri::RelativeUriExcessParentSegments_ERROR:
+                                return nullptr;
+
+                            case css::uri::RelativeUriExcessParentSegments_RETAIN:
+                                assert(i.segment == u"..");
+                                break;
+
+                            case css::uri::RelativeUriExcessParentSegments_REMOVE:
+                                continue;
+
+                            default:
+                                assert(false);
+                                break;
+                            }
+                        }
+                        if (i.leadingSlash) {
+                            abs.append('/');
+                        }
+                        abs.append(i.segment);
+                    }
+                    processed = true;
+                }
+            }
+            if (!processed) {
+                abs.append(uriReference->getPath());
+            }
+        }
+        if (uriReference->hasQuery()) {
+            abs.append("?" + uriReference->getQuery());
+        }
+        if (uriReference->hasFragment()) {
+            abs.append("#" + uriReference->getFragment());
+        }
+        return parse(abs.makeStringAndClear());
+    }
+}
+
+css::uno::Reference< css::uri::XUriReference > Factory::makeRelative(
+    css::uno::Reference< css::uri::XUriReference > const & baseUriReference,
+    css::uno::Reference< css::uri::XUriReference > const & uriReference,
+    sal_Bool preferAuthorityOverRelativePath,
+    sal_Bool preferAbsoluteOverRelativePath,
+    sal_Bool encodeRetainedSpecialSegments)
+{
+    if (!baseUriReference.is() || !baseUriReference->isAbsolute()
+        || !uriReference.is()) {
+        return nullptr;
+    } else if (!uriReference->isAbsolute() || uriReference->hasRelativePath()
+               || !baseUriReference->getScheme().equalsIgnoreAsciiCase(
+                   uriReference->getScheme())) {
+        return clone(uriReference);
+    } else {
+        OUStringBuffer rel(128);
+        bool omitQuery = false;
+        if ((baseUriReference->hasAuthority() != uriReference->hasAuthority())
+            || !equalIgnoreEscapeCase(
+                baseUriReference->getAuthority(),
+                uriReference->getAuthority()))
+        {
+            if (uriReference->hasAuthority()) {
+                rel.append("//" + uriReference->getAuthority());
+            }
+            rel.append(uriReference->getPath());
+        } else if ((equalIgnoreEscapeCase(
+                        baseUriReference->getPath(), uriReference->getPath())
+                    || (baseUriReference->getPath() == "/"
+                        && uriReference->getPath().isEmpty()))
+                   && baseUriReference->hasQuery() == uriReference->hasQuery()
+                   && equalIgnoreEscapeCase(
+                       baseUriReference->getQuery(), uriReference->getQuery()))
+        {
+            omitQuery = true;
+        } else {
+            sal_Int32 count1 = std::max< sal_Int32 >(
+                baseUriReference->getPathSegmentCount(), 1);
+            sal_Int32 count2 = std::max< sal_Int32 >(
+                uriReference->getPathSegmentCount(), 1);
+            sal_Int32 i = 0;
+            for (; i < std::min(count1, count2) - 1; ++i) {
+                if (!equalIgnoreEscapeCase(
+                        baseUriReference->getPathSegment(i),
+                        uriReference->getPathSegment(i)))
+                {
+                    break;
+                }
+            }
+            if (i == 0
+                && (preferAbsoluteOverRelativePath || uriReference->hasQuery())
+                && (preferAuthorityOverRelativePath
+                    || !uriReference->getPath().startsWith("//")))
+            {
+                if (uriReference->getPath().isEmpty()) {
+                    if (!baseUriReference->getPath().isEmpty()
+                        && baseUriReference->getPath() != "/")
+                    {
+                        rel.append('/');
+                    }
+                } else if (uriReference->getPath() == "/") {
+                    if (baseUriReference->getPath().isEmpty()
+                        || baseUriReference->getPath() != "/")
+                    {
+                        rel.append('/');
+                    }
+                } else {
+                    if (uriReference->getPath().startsWith("//")) {
+                        assert(uriReference->hasAuthority());
+                        rel.append("//" + uriReference->getAuthority());
+                    }
+                    rel.append(uriReference->getPath());
+                }
+            } else {
+                bool segments = false;
+                for (sal_Int32 j = i; j < count1 - 1; ++j) {
+                    if (segments) {
+                        rel.append('/');
+                    }
+                    rel.append("..");
+                    segments = true;
+                }
+                if (i < count2 - 1
+                    || (!uriReference->getPathSegment(count2 - 1).isEmpty()))
+                {
+                    if (!segments
+                        && (uriReference->getPathSegment(i).isEmpty()
+                            || (parseScheme(uriReference->getPathSegment(i))
+                                >= 0)))
+                    {
+                        rel.append('.');
+                        segments = true;
+                    }
+                    for (; i < count2; ++i) {
+                        if (segments) {
+                            rel.append('/');
+                        }
+                        OUString s(uriReference->getPathSegment(i));
+                        if (encodeRetainedSpecialSegments && s == ".") {
+                            rel.append("%2E");
+                        } else if (encodeRetainedSpecialSegments && s == "..") {
+                            rel.append("%2E%2E");
+                        } else {
+                            rel.append(s);
+                        }
+                        segments = true;
+                    }
+                }
+            }
+        }
+        if (!omitQuery && uriReference->hasQuery()) {
+            rel.append("?" + uriReference->getQuery());
+        }
+        if (uriReference->hasFragment()) {
+            rel.append("#" + uriReference->getFragment());
+        }
+        return parse(rel.makeStringAndClear());
+    }
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_uri_UriReferenceFactory_get_implementation(css::uno::XComponentContext* rxContext,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    return ::cppu::acquire(new Factory(rxContext));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTexpand.cxx b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTexpand.cxx
new file mode 100644
index 0000000000..dde6fcb060
--- /dev/null
+++ b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTexpand.cxx
@@ -0,0 +1,198 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uri/XUriSchemeParser.hpp>
+#include <com/sun/star/uri/XVndSunStarExpandUrlReference.hpp>
+#include <com/sun/star/util/XMacroExpander.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <rtl/textenc.h>
+#include <rtl/uri.h>
+#include <rtl/uri.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+#include "UriReference.hxx"
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::uno { class XInterface; }
+namespace com::sun::star::uri { class XUriReference; }
+
+namespace {
+
+bool parseSchemeSpecificPart(OUString const & part) {
+    // Liberally accepts both an empty opaque_part and an opaque_part that
+    // starts with a non-escaped "/":
+    return part.isEmpty()
+        || (!::rtl::Uri::decode(part, ::rtl_UriDecodeStrict, RTL_TEXTENCODING_UTF8).isEmpty());
+}
+
+class UrlReference:
+    public ::cppu::WeakImplHelper<css::uri::XVndSunStarExpandUrlReference>
+{
+public:
+    UrlReference(OUString const & scheme, OUString const & path):
+        base_(
+            scheme, false, OUString(), path, false,
+            OUString())
+    {}
+
+    UrlReference(const UrlReference&) = delete;
+    UrlReference& operator=(const UrlReference&) = delete;
+
+    virtual OUString SAL_CALL getUriReference() override
+    { return base_.getUriReference(); }
+
+    virtual sal_Bool SAL_CALL isAbsolute() override
+    { return base_.isAbsolute(); }
+
+    virtual OUString SAL_CALL getScheme() override
+    { return base_.getScheme(); }
+
+    virtual OUString SAL_CALL getSchemeSpecificPart() override
+    { return base_.getSchemeSpecificPart(); }
+
+    virtual sal_Bool SAL_CALL isHierarchical() override
+    { return base_.isHierarchical(); }
+
+    virtual sal_Bool SAL_CALL hasAuthority() override
+    { return base_.hasAuthority(); }
+
+    virtual OUString SAL_CALL getAuthority() override
+    { return base_.getAuthority(); }
+
+    virtual OUString SAL_CALL getPath() override
+    { return base_.getPath(); }
+
+    virtual sal_Bool SAL_CALL hasRelativePath() override
+    { return base_.hasRelativePath(); }
+
+    virtual ::sal_Int32 SAL_CALL getPathSegmentCount() override
+    { return base_.getPathSegmentCount(); }
+
+    virtual OUString SAL_CALL getPathSegment(sal_Int32 index) override
+    { return base_.getPathSegment(index); }
+
+    virtual sal_Bool SAL_CALL hasQuery() override
+    { return base_.hasQuery(); }
+
+    virtual OUString SAL_CALL getQuery() override
+    { return base_.getQuery(); }
+
+    virtual sal_Bool SAL_CALL hasFragment() override
+    { return base_.hasFragment(); }
+
+    virtual OUString SAL_CALL getFragment() override
+    { return base_.getFragment(); }
+
+    virtual void SAL_CALL setFragment(OUString const & fragment) override
+    { base_.setFragment(fragment); }
+
+    virtual void SAL_CALL clearFragment() override
+    { base_.clearFragment(); }
+
+    virtual OUString SAL_CALL expand(
+        css::uno::Reference< css::util::XMacroExpander > const & expander) override;
+
+private:
+    virtual ~UrlReference() override {}
+
+    stoc::uriproc::UriReference base_;
+};
+
+OUString UrlReference::expand(
+    css::uno::Reference< css::util::XMacroExpander > const & expander)
+{
+    if (!expander.is()) {
+        throw css::uno::RuntimeException("null expander passed to XVndSunStarExpandUrl.expand");
+    }
+    return expander->expandMacros(
+        ::rtl::Uri::decode(
+            getPath(), ::rtl_UriDecodeWithCharset, RTL_TEXTENCODING_UTF8));
+}
+
+class Parser:
+    public ::cppu::WeakImplHelper<
+        css::lang::XServiceInfo, css::uri::XUriSchemeParser>
+{
+public:
+    Parser() {}
+
+    Parser(const Parser&) = delete;
+    Parser& operator=(const Parser&) = delete;
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL supportsService(
+        OUString const & serviceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    parse(
+        OUString const & scheme,
+        OUString const & schemeSpecificPart) override;
+
+private:
+    virtual ~Parser() override {}
+};
+
+OUString Parser::getImplementationName()
+{
+    return "com.sun.star.comp.uri.UriSchemeParser_vndDOTsunDOTstarDOTexpand";
+}
+
+sal_Bool Parser::supportsService(OUString const & serviceName)
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+css::uno::Sequence< OUString > Parser::getSupportedServiceNames()
+{
+    return { "com.sun.star.uri.UriSchemeParser_vndDOTsunDOTstarDOTexpand" };
+}
+
+css::uno::Reference< css::uri::XUriReference > Parser::parse(
+    OUString const & scheme, OUString const & schemeSpecificPart)
+{
+    if (!parseSchemeSpecificPart(schemeSpecificPart)) {
+        return css::uno::Reference< css::uri::XUriReference >();
+    }
+    return new UrlReference(scheme, schemeSpecificPart);
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_uri_UriSchemeParser_vndDOTsunDOTstarDOTexpand_get_implementation(css::uno::XComponentContext*,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    //TODO: single instance
+    return ::cppu::acquire(new Parser());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx
new file mode 100644
index 0000000000..1f53351693
--- /dev/null
+++ b/stoc/source/uriproc/UriSchemeParser_vndDOTsunDOTstarDOTscript.cxx
@@ -0,0 +1,385 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "UriReference.hxx"
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uri/XUriSchemeParser.hpp>
+#include <com/sun/star/uri/XVndSunStarScriptUrlReference.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <rtl/character.hxx>
+#include <rtl/uri.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+#include <o3tl/safeint.hxx>
+
+#include <string_view>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::uno { class XInterface; }
+namespace com::sun::star::uri { class XUriReference; }
+
+namespace {
+
+int getHexWeight(sal_Unicode c) {
+    return c >= '0' && c <= '9' ? static_cast< int >(c - '0')
+        : c >= 'A' && c <= 'F' ? static_cast< int >(c - 'A' + 10)
+        : c >= 'a' && c <= 'f' ? static_cast< int >(c - 'a' + 10)
+        : -1;
+}
+
+int parseEscaped(std::u16string_view part, sal_Int32 * index) {
+    if (part.size() - *index < 3 || part[*index] != '%') {
+        return -1;
+    }
+    int n1 = getHexWeight(part[*index + 1]);
+    int n2 = getHexWeight(part[*index + 2]);
+    if (n1 < 0 || n2 < 0) {
+        return -1;
+    }
+    *index += 3;
+    return (n1 << 4) | n2;
+}
+
+OUString parsePart(
+    std::u16string_view part, bool namePart, sal_Int32 * index)
+{
+    OUStringBuffer buf(64);
+    while (o3tl::make_unsigned(*index) < part.size()) {
+        sal_Unicode c = part[*index];
+        if (namePart ? c == '?' : c == '&' || c == '=') {
+            break;
+        } else if (c == '%') {
+            sal_Int32 i = *index;
+            int n = parseEscaped(part, &i);
+            if (n >= 0 && n <= 0x7F) {
+                buf.append(static_cast< sal_Unicode >(n));
+            } else if (n >= 0xC0 && n <= 0xFC) {
+                sal_Int32 encoded;
+                int shift;
+                sal_Int32 min;
+                if (n <= 0xDF) {
+                    encoded = (n & 0x1F) << 6;
+                    shift = 0;
+                    min = 0x80;
+                } else if (n <= 0xEF) {
+                    encoded = (n & 0x0F) << 12;
+                    shift = 6;
+                    min = 0x800;
+                } else if (n <= 0xF7) {
+                    encoded = (n & 0x07) << 18;
+                    shift = 12;
+                    min = 0x10000;
+                } else if (n <= 0xFB) {
+                    encoded = (n & 0x03) << 24;
+                    shift = 18;
+                    min = 0x200000;
+                } else {
+                    encoded = 0;
+                    shift = 24;
+                    min = 0x4000000;
+                }
+                bool utf8 = true;
+                for (; shift >= 0; shift -= 6) {
+                    n = parseEscaped(part, &i);
+                    if (n < 0x80 || n > 0xBF) {
+                        utf8 = false;
+                        break;
+                    }
+                    encoded |= (n & 0x3F) << shift;
+                }
+                if (!utf8 || !rtl::isUnicodeScalarValue(encoded)
+                    || encoded < min)
+                {
+                    break;
+                }
+                buf.appendUtf32(encoded);
+            } else {
+                break;
+            }
+            *index = i;
+        } else {
+            buf.append(c);
+            ++*index;
+        }
+    }
+    return buf.makeStringAndClear();
+}
+
+OUString encodeNameOrParamFragment(OUString const & fragment) {
+    static constexpr auto nameOrParamFragment = rtl::createUriCharClass(
+        u8"!$'()*+,-.0123456789:;@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]_abcdefghijklmnopqrstuvwxyz~");
+    return rtl::Uri::encode(
+        fragment, nameOrParamFragment.data(), rtl_UriEncodeIgnoreEscapes,
+        RTL_TEXTENCODING_UTF8);
+}
+
+bool parseSchemeSpecificPart(std::u16string_view part) {
+    size_t len = part.size();
+    sal_Int32 i = 0;
+    if (parsePart(part, true, &i).isEmpty() || part[0] == '/') {
+        return false;
+    }
+    if (o3tl::make_unsigned(i) == len) {
+        return true;
+    }
+    for (;;) {
+        ++i; // skip '?' or '&'
+        if (parsePart(part, false, &i).isEmpty() || o3tl::make_unsigned(i) == len
+            || part[i] != '=')
+        {
+            return false;
+        }
+        ++i;
+        parsePart(part, false, &i);
+        if (o3tl::make_unsigned(i) == len) {
+            return true;
+        }
+        if (part[i] != '&') {
+            return false;
+        }
+    }
+}
+
+class UrlReference:
+    public cppu::WeakImplHelper<css::uri::XVndSunStarScriptUrlReference>
+{
+public:
+    UrlReference(OUString const & scheme, OUString const & path):
+        m_base(
+            scheme, false, OUString(), path, false, OUString())
+    {}
+
+    UrlReference(const UrlReference&) = delete;
+    UrlReference& operator=(const UrlReference&) = delete;
+
+    virtual OUString SAL_CALL getUriReference() override
+    { return m_base.getUriReference(); }
+
+    virtual sal_Bool SAL_CALL isAbsolute() override
+    { return m_base.isAbsolute(); }
+
+    virtual OUString SAL_CALL getScheme() override
+    { return m_base.getScheme(); }
+
+    virtual OUString SAL_CALL getSchemeSpecificPart() override
+    { return m_base.getSchemeSpecificPart(); }
+
+    virtual sal_Bool SAL_CALL isHierarchical() override
+    { return m_base.isHierarchical(); }
+
+    virtual sal_Bool SAL_CALL hasAuthority() override
+    { return m_base.hasAuthority(); }
+
+    virtual OUString SAL_CALL getAuthority() override
+    { return m_base.getAuthority(); }
+
+    virtual OUString SAL_CALL getPath() override
+    { return m_base.getPath(); }
+
+    virtual sal_Bool SAL_CALL hasRelativePath() override
+    { return m_base.hasRelativePath(); }
+
+    virtual sal_Int32 SAL_CALL getPathSegmentCount() override
+    { return m_base.getPathSegmentCount(); }
+
+    virtual OUString SAL_CALL getPathSegment(sal_Int32 index) override
+    { return m_base.getPathSegment(index); }
+
+    virtual sal_Bool SAL_CALL hasQuery() override
+    { return m_base.hasQuery(); }
+
+    virtual OUString SAL_CALL getQuery() override
+    { return m_base.getQuery(); }
+
+    virtual sal_Bool SAL_CALL hasFragment() override
+    { return m_base.hasFragment(); }
+
+    virtual OUString SAL_CALL getFragment() override
+    { return m_base.getFragment(); }
+
+    virtual void SAL_CALL setFragment(OUString const & fragment) override
+    { m_base.setFragment(fragment); }
+
+    virtual void SAL_CALL clearFragment() override
+    { m_base.clearFragment(); }
+
+    virtual OUString SAL_CALL getName() override;
+
+    virtual void SAL_CALL setName(OUString const & name) override;
+
+    virtual sal_Bool SAL_CALL hasParameter(OUString const & key) override;
+
+    virtual OUString SAL_CALL getParameter(OUString const & key) override;
+
+    virtual void SAL_CALL setParameter(OUString const & key, OUString const & value) override;
+
+private:
+    virtual ~UrlReference() override {}
+
+    sal_Int32 findParameter(std::u16string_view key) const;
+
+    stoc::uriproc::UriReference m_base;
+};
+
+OUString UrlReference::getName() {
+    std::lock_guard g(m_base.m_mutex);
+    sal_Int32 i = 0;
+    return parsePart(m_base.m_path, true, &i);
+}
+
+void SAL_CALL UrlReference::setName(OUString const & name)
+{
+    if (name.isEmpty())
+        throw css::lang::IllegalArgumentException(
+            OUString(), *this, 1);
+
+    std::lock_guard g(m_base.m_mutex);
+    sal_Int32 i = 0;
+    parsePart(m_base.m_path, true, &i);
+
+    m_base.m_path = encodeNameOrParamFragment(name) + m_base.m_path.subView(i);
+}
+
+sal_Bool UrlReference::hasParameter(OUString const & key)
+{
+    std::lock_guard g(m_base.m_mutex);
+    return findParameter(key) >= 0;
+}
+
+OUString UrlReference::getParameter(OUString const & key)
+{
+    std::lock_guard g(m_base.m_mutex);
+    sal_Int32 i = findParameter(key);
+    return i >= 0 ? parsePart(m_base.m_path, false, &i) : OUString();
+}
+
+void UrlReference::setParameter(OUString const & key, OUString const & value)
+{
+    if (key.isEmpty())
+        throw css::lang::IllegalArgumentException(
+            OUString(), *this, 1);
+
+    std::lock_guard g(m_base.m_mutex);
+    sal_Int32 i = findParameter(key);
+    bool bExistent = ( i>=0 );
+    if (!bExistent) {
+        i = m_base.m_path.getLength();
+    }
+
+    OUStringBuffer newPath(128);
+    newPath.append(m_base.m_path.subView(0, i));
+    if (!bExistent) {
+        newPath.append( m_base.m_path.indexOf('?') < 0 ? '?' : '&' );
+        newPath.append(encodeNameOrParamFragment(key) + "=");
+    }
+    newPath.append(encodeNameOrParamFragment(value));
+    if (bExistent) {
+        /*oldValue = */
+        parsePart(m_base.m_path, false, &i); // skip key
+        newPath.append(m_base.m_path.subView(i));
+    }
+
+    m_base.m_path = newPath.makeStringAndClear();
+}
+
+sal_Int32 UrlReference::findParameter(std::u16string_view key) const {
+    sal_Int32 i = 0;
+    parsePart(m_base.m_path, true, &i); // skip name
+    for (;;) {
+        if (i == m_base.m_path.getLength()) {
+            return -1;
+        }
+        ++i; // skip '?' or '&'
+        OUString k = parsePart(m_base.m_path, false, &i);
+        ++i; // skip '='
+        if (k == key) {
+            return i;
+        }
+        parsePart(m_base.m_path, false, &i); // skip value
+    }
+}
+
+class Parser:
+    public cppu::WeakImplHelper<
+        css::lang::XServiceInfo, css::uri::XUriSchemeParser>
+{
+public:
+    Parser() {}
+
+    Parser(const Parser&) = delete;
+    Parser& operator=(const Parser&) = delete;
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & serviceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    parse(
+        OUString const & scheme, OUString const & schemeSpecificPart) override;
+
+private:
+    virtual ~Parser() override {}
+};
+
+OUString Parser::getImplementationName()
+{
+    return "com.sun.star.comp.uri.UriSchemeParser_vndDOTsunDOTstarDOTscript";
+}
+
+sal_Bool Parser::supportsService(OUString const & serviceName)
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+css::uno::Sequence< OUString > Parser::getSupportedServiceNames()
+{
+    return { "com.sun.star.uri.UriSchemeParser_vndDOTsunDOTstarDOTscript" };
+}
+
+css::uno::Reference< css::uri::XUriReference >
+Parser::parse(
+    OUString const & scheme, OUString const & schemeSpecificPart)
+{
+    if (!parseSchemeSpecificPart(schemeSpecificPart)) {
+        return nullptr;
+    }
+    return new UrlReference(scheme, schemeSpecificPart);
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_uri_UriSchemeParser_vndDOTsunDOTstarDOTscript_get_implementation(css::uno::XComponentContext*,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    //TODO: single instance
+    return ::cppu::acquire(new Parser());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/stoc/source/uriproc/VndSunStarPkgUrlReferenceFactory.cxx b/stoc/source/uriproc/VndSunStarPkgUrlReferenceFactory.cxx
new file mode 100644
index 0000000000..7520c460f1
--- /dev/null
+++ b/stoc/source/uriproc/VndSunStarPkgUrlReferenceFactory.cxx
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uri/UriReferenceFactory.hpp>
+#include <com/sun/star/uri/XUriReference.hpp>
+#include <com/sun/star/uri/XVndSunStarPkgUrlReferenceFactory.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <rtl/textenc.h>
+#include <rtl/uri.h>
+#include <rtl/uri.hxx>
+#include <rtl/ustring.hxx>
+#include <utility>
+#include <sal/types.h>
+
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::uno { class XInterface; }
+
+namespace {
+
+class Factory:
+    public cppu::WeakImplHelper<
+        css::lang::XServiceInfo, css::uri::XVndSunStarPkgUrlReferenceFactory>
+{
+public:
+    explicit Factory(
+        css::uno::Reference< css::uno::XComponentContext > context):
+        m_context(std::move(context)) {}
+
+    Factory(const Factory&) = delete;
+    Factory& operator=(const Factory&) = delete;
+
+    virtual OUString SAL_CALL getImplementationName() override;
+
+    virtual sal_Bool SAL_CALL supportsService(OUString const & serviceName) override;
+
+    virtual css::uno::Sequence< OUString > SAL_CALL
+    getSupportedServiceNames() override;
+
+    virtual css::uno::Reference< css::uri::XUriReference > SAL_CALL
+    createVndSunStarPkgUrlReference(
+        css::uno::Reference< css::uri::XUriReference > const & authority) override;
+
+private:
+    virtual ~Factory() override {}
+
+    css::uno::Reference< css::uno::XComponentContext > m_context;
+};
+
+OUString Factory::getImplementationName()
+{
+    return "com.sun.star.comp.uri.VndSunStarPkgUrlReferenceFactory";
+}
+
+sal_Bool Factory::supportsService(OUString const & serviceName)
+{
+    return cppu::supportsService(this, serviceName);
+}
+
+css::uno::Sequence< OUString > Factory::getSupportedServiceNames()
+{
+    css::uno::Sequence< OUString > s { "com.sun.star.uri.VndSunStarPkgUrlReferenceFactory" };
+    return s;
+}
+
+css::uno::Reference< css::uri::XUriReference >
+Factory::createVndSunStarPkgUrlReference(
+    css::uno::Reference< css::uri::XUriReference > const & authority)
+{
+    if (!authority.is()) {
+        throw css::uno::RuntimeException(
+            "null authority passed to"
+            " XVndSunStarPkgUrlReferenceFactory.createVndSunStarPkgUrlReference");
+    }
+    if (authority->isAbsolute() && !authority->hasFragment()) {
+        OUString buf =
+            "vnd.sun.star.pkg://" +
+            rtl::Uri::encode(
+                authority->getUriReference(), rtl_UriCharClassRegName,
+                rtl_UriEncodeIgnoreEscapes, RTL_TEXTENCODING_UTF8);
+        css::uno::Reference< css::uri::XUriReference > uriRef(
+            css::uri::UriReferenceFactory::create(m_context)->parse(
+                buf));
+        return uriRef;
+    } else {
+        return css::uno::Reference< css::uri::XUriReference >();
+    }
+}
+
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_uri_VndSunStarPkgUrlReferenceFactory_get_implementation(css::uno::XComponentContext* rxContext,
+        css::uno::Sequence<css::uno::Any> const &)
+{
+    return ::cppu::acquire(new Factory(rxContext));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */