1*2be43276SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*2be43276SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*2be43276SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*2be43276SAndrew Rist * distributed with this work for additional information 6*2be43276SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*2be43276SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*2be43276SAndrew Rist * "License"); you may not use this file except in compliance 9*2be43276SAndrew Rist * with the License. You may obtain a copy of the License at 10*2be43276SAndrew Rist * 11*2be43276SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*2be43276SAndrew Rist * 13*2be43276SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*2be43276SAndrew Rist * software distributed under the License is distributed on an 15*2be43276SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*2be43276SAndrew Rist * KIND, either express or implied. See the License for the 17*2be43276SAndrew Rist * specific language governing permissions and limitations 18*2be43276SAndrew Rist * under the License. 19*2be43276SAndrew Rist * 20*2be43276SAndrew Rist *************************************************************/ 21*2be43276SAndrew Rist 22*2be43276SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir package com.sun.star.uno; 25cdf0e10cSrcweir 26cdf0e10cSrcweir import complexlib.ComplexTestCase; 27cdf0e10cSrcweir import java.util.ArrayList; 28cdf0e10cSrcweir import java.util.Iterator; 29cdf0e10cSrcweir import util.WaitUnreachable; 30cdf0e10cSrcweir 31cdf0e10cSrcweir public final class WeakReference_Test extends ComplexTestCase { getTestObjectName()32cdf0e10cSrcweir public String getTestObjectName() { 33cdf0e10cSrcweir return getClass().getName(); 34cdf0e10cSrcweir } 35cdf0e10cSrcweir getTestMethodNames()36cdf0e10cSrcweir public String[] getTestMethodNames() { 37cdf0e10cSrcweir return new String[] { "test" }; 38cdf0e10cSrcweir } 39cdf0e10cSrcweir test()40cdf0e10cSrcweir public void test() { 41cdf0e10cSrcweir Object o = new MockWeak(); 42cdf0e10cSrcweir WeakReference r1 = new WeakReference(o); 43cdf0e10cSrcweir WeakReference r2 = new WeakReference(r1); 44cdf0e10cSrcweir assure("", r1.get() == o); 45cdf0e10cSrcweir assure("", r2.get() == o); 46cdf0e10cSrcweir WaitUnreachable u = new WaitUnreachable(o); 47cdf0e10cSrcweir o = null; 48cdf0e10cSrcweir u.waitUnreachable(); 49cdf0e10cSrcweir assure("a3", r1.get() == null); 50cdf0e10cSrcweir assure("a4", r2.get() == null); 51cdf0e10cSrcweir } 52cdf0e10cSrcweir 53cdf0e10cSrcweir private static final class MockWeak implements XWeak { queryAdapter()54cdf0e10cSrcweir public XAdapter queryAdapter() { 55cdf0e10cSrcweir return adapter; 56cdf0e10cSrcweir } 57cdf0e10cSrcweir finalize()58cdf0e10cSrcweir protected void finalize() { 59cdf0e10cSrcweir adapter.dispose(); 60cdf0e10cSrcweir } 61cdf0e10cSrcweir 62cdf0e10cSrcweir private static final class Adapter implements XAdapter { Adapter(Object obj)63cdf0e10cSrcweir public Adapter(Object obj) { 64cdf0e10cSrcweir ref = new java.lang.ref.WeakReference(obj); 65cdf0e10cSrcweir } 66cdf0e10cSrcweir queryAdapted()67cdf0e10cSrcweir public Object queryAdapted() { 68cdf0e10cSrcweir return ref.get(); 69cdf0e10cSrcweir } 70cdf0e10cSrcweir addReference(XReference ref)71cdf0e10cSrcweir public void addReference(XReference ref) { 72cdf0e10cSrcweir synchronized (this) { 73cdf0e10cSrcweir if (listeners != null) { 74cdf0e10cSrcweir listeners.add(ref); 75cdf0e10cSrcweir return; 76cdf0e10cSrcweir } 77cdf0e10cSrcweir } 78cdf0e10cSrcweir ref.dispose(); 79cdf0e10cSrcweir } 80cdf0e10cSrcweir removeReference(XReference ref)81cdf0e10cSrcweir public synchronized void removeReference(XReference ref) { 82cdf0e10cSrcweir if (listeners != null) { 83cdf0e10cSrcweir listeners.remove(ref); 84cdf0e10cSrcweir } 85cdf0e10cSrcweir } 86cdf0e10cSrcweir dispose()87cdf0e10cSrcweir public void dispose() { 88cdf0e10cSrcweir ArrayList l; 89cdf0e10cSrcweir synchronized (this){ 90cdf0e10cSrcweir l = listeners; 91cdf0e10cSrcweir listeners = null; 92cdf0e10cSrcweir } 93cdf0e10cSrcweir if (l != null) { 94cdf0e10cSrcweir java.lang.RuntimeException ex = null; 95cdf0e10cSrcweir for (Iterator i = l.iterator(); i.hasNext();) { 96cdf0e10cSrcweir try { 97cdf0e10cSrcweir ((XReference) i.next()).dispose(); 98cdf0e10cSrcweir } catch (java.lang.RuntimeException e) { 99cdf0e10cSrcweir ex = e; 100cdf0e10cSrcweir } 101cdf0e10cSrcweir } 102cdf0e10cSrcweir if (ex != null) { 103cdf0e10cSrcweir throw ex; 104cdf0e10cSrcweir } 105cdf0e10cSrcweir } 106cdf0e10cSrcweir } 107cdf0e10cSrcweir 108cdf0e10cSrcweir private final java.lang.ref.WeakReference ref; 109cdf0e10cSrcweir private ArrayList listeners = new ArrayList(); 110cdf0e10cSrcweir } 111cdf0e10cSrcweir 112cdf0e10cSrcweir private final Adapter adapter = new Adapter(this); 113cdf0e10cSrcweir } 114cdf0e10cSrcweir } 115