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diff --git a/jvmfwk/plugins/sunmajor/pluginlib/sunversion.hxx b/jvmfwk/plugins/sunmajor/pluginlib/sunversion.hxx
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+/* -*- 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_JVMFWK_PLUGINS_SUNMAJOR_PLUGINLIB_SUNVERSION_HXX
+#define INCLUDED_JVMFWK_PLUGINS_SUNMAJOR_PLUGINLIB_SUNVERSION_HXX
+
+#include <rtl/ustring.hxx>
+
+namespace jfw_plugin {
+// Define OSL_DEBUG_LEVEL >= 2 to run a test when this lib is loaded
+
+/* SunVersion is used to compare java versions based on a string, as taken
+   from the registry. The strings look like "1.3", "1.3.1", "1.3.1_02" etc.
+   Versions such as "1.4.1_01a" are allowed although this is not specified.
+   1.4.1_01 < 1.4.1_01a < 1.4.1_01b < 1.4.1_02
+   Pre - release versions, such as 1.4.1-ea, 1.4.1-beta, 1.4.1-rc are recognized,
+   but are treated as minor to release versions:
+   1.4.0 > 1.4.2-beta
+   Pre releases relate this way
+   1.4.1-ea < 1.4.1-beta < 1.4.1-rc1
+
+   This class supports also a FreeBSD Java. This is currently necessary because
+   it also has the vendor string "Sun Microsystems Inc.".
+
+   An object acts as holder for the version string. That string may be present
+   even if the version could not be parsed. Then the version may not be compatible
+   to a SUN Java version.
+
+   An invalid object, that is, operator bool returns false, will always be
+   the lower version in a comparison. If two invalid objects are compared
+   then they are considered equal.
+
+   To test if the version is ok, that is this object can be compared to others,
+   use the bool conversion operator.
+ */
+class SunVersion final
+{
+    enum PreRelease
+    {
+        Rel_NONE,
+        Rel_INTERNAL,
+        Rel_EA,
+        Rel_EA1,
+        Rel_EA2,
+        Rel_EA3,
+        Rel_BETA,
+        Rel_BETA1,
+        Rel_BETA2,
+        Rel_BETA3,
+        Rel_RC,
+        Rel_RC1,
+        Rel_RC2,
+        Rel_RC3
+#if defined(FREEBSD)
+    ,
+        Rel_FreeBSD
+#endif
+    };
+
+    //contains major,minor,micro,update
+    int m_arVersionParts[4] = {};
+    // The update can be followed by a char, e.g. 1.4.1_01a
+    char m_nUpdateSpecial;
+
+    PreRelease m_preRelease;
+public:
+    explicit SunVersion(const char * szVer);
+    explicit SunVersion(const OUString& usVer);
+    ~SunVersion();
+
+    /**
+       Pre-release versions are taken into account.
+       1.5.0-beta > 1.5.0-ea > 1.4.2
+     */
+    bool operator > (const SunVersion& ver) const;
+    bool operator < (const SunVersion& ver) const;
+    bool operator == (const SunVersion& ver) const;
+
+    /** Test if the version is compatible tu SUN's versioning scheme
+     */
+    operator bool () { return m_bValid;}
+
+private:
+    bool init(const char * szVer);
+
+    bool m_bValid;
+
+    /* Determines if a string constitutes a pre release. For example, if
+       "ea" is passed then Rel_EA is returned. If the string is no pre release
+       then Rel_NONE is returned.
+    */
+    static PreRelease getPreRelease(const char *szRel);
+};
+
+}
+
+#endif // INCLUDED_JVMFWK_PLUGINS_SUNMAJOR_PLUGINLIB_SUNVERSION_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */