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+/* -*- Mode: Java; 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 .
+ */
+
+package com.sun.star.uno;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import org.junit.Test;
+import util.WaitUnreachable;
+import static org.junit.Assert.*;
+
+public final class WeakReference_Test {
+ @Test public void test() {
+ Object o = new MockWeak();
+ WeakReference r1 = new WeakReference(o);
+ WeakReference r2 = new WeakReference(r1);
+ assertSame(o, r1.get());
+ assertSame(o, r2.get());
+ WaitUnreachable u = new WaitUnreachable(o);
+ o = null;
+ u.waitUnreachable();
+ assertNull("a3", r1.get());
+ assertNull("a4", r2.get());
+ }
+
+ private static final class MockWeak implements XWeak {
+ public XAdapter queryAdapter() {
+ return adapter;
+ }
+
+ @Override
+ protected void finalize() throws Throwable {
+ adapter.dispose();
+ super.finalize();
+ }
+
+ private static final class Adapter implements XAdapter {
+ public Adapter(Object obj) {
+ ref = new java.lang.ref.WeakReference<Object>(obj);
+ }
+
+ public Object queryAdapted() {
+ return ref.get();
+ }
+
+ public void addReference(XReference ref) {
+ synchronized (this) {
+ if (listeners != null) {
+ listeners.add(ref);
+ return;
+ }
+ }
+ ref.dispose();
+ }
+
+ public synchronized void removeReference(XReference ref) {
+ if (listeners != null) {
+ listeners.remove(ref);
+ }
+ }
+
+ public void dispose() {
+ ArrayList<XReference> l;
+ synchronized (this){
+ l = listeners;
+ listeners = null;
+ }
+ if (l != null) {
+ java.lang.RuntimeException ex = null;
+ for (Iterator<XReference> i = l.iterator(); i.hasNext();) {
+ try {
+ i.next().dispose();
+ } catch (java.lang.RuntimeException e) {
+ ex = e;
+ }
+ }
+ if (ex != null) {
+ throw ex;
+ }
+ }
+ }
+
+ private final java.lang.ref.WeakReference<Object> ref;
+ private ArrayList<XReference> listeners = new ArrayList<XReference>();
+ }
+
+ private final Adapter adapter = new Adapter(this);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */