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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: */
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