openide.util.lookup/test/unit/src/org/netbeans/modules/openide/util/ActiveQueueTest.java
1.1 --- a/openide.util.lookup/test/unit/src/org/netbeans/modules/openide/util/ActiveQueueTest.java Wed Jan 27 17:46:23 2010 -0500
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,133 +0,0 @@
1.4 -/*
1.5 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 - *
1.7 - * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
1.8 - *
1.9 - * The contents of this file are subject to the terms of either the GNU
1.10 - * General Public License Version 2 only ("GPL") or the Common
1.11 - * Development and Distribution License("CDDL") (collectively, the
1.12 - * "License"). You may not use this file except in compliance with the
1.13 - * License. You can obtain a copy of the License at
1.14 - * http://www.netbeans.org/cddl-gplv2.html
1.15 - * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
1.16 - * specific language governing permissions and limitations under the
1.17 - * License. When distributing the software, include this License Header
1.18 - * Notice in each file and include the License file at
1.19 - * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
1.20 - * particular file as subject to the "Classpath" exception as provided
1.21 - * by Sun in the GPL Version 2 section of the License file that
1.22 - * accompanied this code. If applicable, add the following below the
1.23 - * License Header, with the fields enclosed by brackets [] replaced by
1.24 - * your own identifying information:
1.25 - * "Portions Copyrighted [year] [name of copyright owner]"
1.26 - *
1.27 - * If you wish your version of this file to be governed by only the CDDL
1.28 - * or only the GPL Version 2, indicate your decision by adding
1.29 - * "[Contributor] elects to include this software in this distribution
1.30 - * under the [CDDL or GPL Version 2] license." If you do not indicate a
1.31 - * single choice of license, a recipient has the option to distribute
1.32 - * your version of this file under either the CDDL, the GPL Version 2 or
1.33 - * to extend the choice of license to its licensees as provided above.
1.34 - * However, if you add GPL Version 2 code and therefore, elected the GPL
1.35 - * Version 2 license, then the option applies only if the new code is
1.36 - * made subject to such option by the copyright holder.
1.37 - *
1.38 - * Contributor(s):
1.39 - *
1.40 - * Portions Copyrighted 2009 Sun Microsystems, Inc.
1.41 - */
1.42 -
1.43 -package org.netbeans.modules.openide.util;
1.44 -
1.45 -import java.lang.ref.Reference;
1.46 -import java.lang.ref.ReferenceQueue;
1.47 -import java.lang.ref.WeakReference;
1.48 -import java.net.URL;
1.49 -import java.net.URLClassLoader;
1.50 -import org.netbeans.junit.NbTestCase;
1.51 -import org.openide.util.lookup.implspi.ActiveQueue;
1.52 -
1.53 -/**
1.54 - *
1.55 - * @author Jaroslav Tulach <jtulach@netbeans.org>
1.56 - */
1.57 -public class ActiveQueueTest extends NbTestCase{
1.58 -
1.59 - public ActiveQueueTest(String name) {
1.60 - super(name);
1.61 - }
1.62 -
1.63 - public void testMemoryLeak() throws Exception {
1.64 - final Class<?> u1 = ActiveQueue.class;
1.65 - class L extends URLClassLoader {
1.66 - public L() {
1.67 - super(new URL[] {u1.getProtectionDomain().getCodeSource().getLocation()}, u1.getClassLoader().getParent());
1.68 - }
1.69 - @Override
1.70 - protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
1.71 - if (name.equals(u1.getName()) || name.startsWith(u1.getName() + "$")) {
1.72 - Class c = findLoadedClass(name);
1.73 - if (c == null) {
1.74 - c = findClass(name);
1.75 - }
1.76 - if (resolve) {
1.77 - resolveClass(c);
1.78 - }
1.79 - return c;
1.80 - } else {
1.81 - return super.loadClass(name, resolve);
1.82 - }
1.83 - }
1.84 - }
1.85 - ClassLoader l = new L();
1.86 - Class<?> u2 = l.loadClass(u1.getName());
1.87 - assertEquals(l, u2.getClassLoader());
1.88 - Object obj = new Object();
1.89 - @SuppressWarnings("unchecked")
1.90 - ReferenceQueue<Object> q = (ReferenceQueue<Object>) u2.getMethod("queue").invoke(null);
1.91 - RunnableRef ref = new RunnableRef(obj, q);
1.92 - synchronized (ref) {
1.93 - obj = null;
1.94 - assertGC("Ref should be GC'ed as usual", ref);
1.95 - ref.wait();
1.96 - assertTrue("Run method has been executed", ref.executed);
1.97 - }
1.98 - Reference<?> r = new WeakReference<Object>(u2);
1.99 - q = null;
1.100 - u2 = null;
1.101 - l = null;
1.102 - assertGC("#86625: Utilities.class can also be collected now", r);
1.103 - }
1.104 -
1.105 -
1.106 - private static class RunnableRef extends WeakReference<Object>
1.107 - implements Runnable {
1.108 - public boolean wait;
1.109 - public boolean entered;
1.110 - public boolean executed;
1.111 -
1.112 - public RunnableRef (Object o) {
1.113 - this(o, ActiveQueue.queue());
1.114 - }
1.115 -
1.116 - public RunnableRef(Object o, ReferenceQueue<Object> q) {
1.117 - super(o, q);
1.118 - }
1.119 -
1.120 - public synchronized void run () {
1.121 - entered = true;
1.122 - if (wait) {
1.123 - // notify we are here
1.124 - notify ();
1.125 - try {
1.126 - wait ();
1.127 - } catch (InterruptedException ex) {
1.128 - }
1.129 - }
1.130 - executed = true;
1.131 -
1.132 - notifyAll ();
1.133 - }
1.134 - }
1.135 -
1.136 -}
1.137 \ No newline at end of file