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/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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* |
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* Copyright 2012 Oracle and/or its affiliates. All rights reserved. |
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* |
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* Oracle and Java are registered trademarks of Oracle and/or its affiliates. |
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* Other names may be trademarks of their respective owners. |
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* |
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* The contents of this file are subject to the terms of either the GNU |
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* General Public License Version 2 only ("GPL") or the Common |
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* Development and Distribution License("CDDL") (collectively, the |
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* "License"). You may not use this file except in compliance with the |
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* License. You can obtain a copy of the License at |
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* http://www.netbeans.org/cddl-gplv2.html |
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the |
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* specific language governing permissions and limitations under the |
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* License. When distributing the software, include this License Header |
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* Notice in each file and include the License file at |
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* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the GPL Version 2 section of the License file that |
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* accompanied this code. If applicable, add the following below the |
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* License Header, with the fields enclosed by brackets [] replaced by |
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* your own identifying information: |
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* "Portions Copyrighted [year] [name of copyright owner]" |
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* |
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* If you wish your version of this file to be governed by only the CDDL |
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* or only the GPL Version 2, indicate your decision by adding |
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* "[Contributor] elects to include this software in this distribution |
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* under the [CDDL or GPL Version 2] license." If you do not indicate a |
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* single choice of license, a recipient has the option to distribute |
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* your version of this file under either the CDDL, the GPL Version 2 or |
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* to extend the choice of license to its licensees as provided above. |
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* However, if you add GPL Version 2 code and therefore, elected the GPL |
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* Version 2 license, then the option applies only if the new code is |
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* made subject to such option by the copyright holder. |
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* |
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* Contributor(s): |
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* |
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* Portions Copyrighted 2012 Sun Microsystems, Inc. |
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*/ |
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package org.openide.util.lookup; |
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|
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import java.io.Serializable; |
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import java.lang.ref.Reference; |
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import java.lang.ref.WeakReference; |
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import java.lang.reflect.InvocationHandler; |
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import java.lang.reflect.Method; |
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import java.lang.reflect.Proxy; |
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import java.net.URL; |
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import java.net.URLClassLoader; |
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import java.util.Collection; |
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import java.util.logging.Level; |
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import org.netbeans.junit.NbTestCase; |
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import org.openide.util.Lookup; |
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import org.openide.util.LookupListener; |
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|
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/** |
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* |
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* @author Jaroslav Tulach <jtulach@netbeans.org> |
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*/ |
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public class LookupPermGenLeakTest extends NbTestCase implements InvocationHandler { |
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private int cnt; |
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|
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public LookupPermGenLeakTest(String name) { |
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super(name); |
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} |
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|
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protected URLClassLoader createClassLoader() { |
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URLClassLoader loader; |
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URL lookup = Lookup.class.getProtectionDomain().getCodeSource().getLocation(); |
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URL tests = LookupPermGenLeakTest.class.getProtectionDomain().getCodeSource().getLocation(); |
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loader = new URLClassLoader( |
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new URL[] { lookup, tests }, |
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Lookup.class.getClassLoader().getParent() |
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); |
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return loader; |
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} |
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|
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@Override |
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protected int timeOut() { |
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return 30000; |
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} |
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|
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@Override |
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protected Level logLevel() { |
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return Level.FINE; |
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} |
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|
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private Object createClass() throws Exception { |
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URLClassLoader loader; |
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Class<?> classLookup; |
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Class<?> classLookups; |
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Class<?> classLookupListener; |
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Class<?> classLookupResult; |
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Class<?> classI; |
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Method methodMetainfServices; |
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Method methodLookupResult; |
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Method methodAddLookupListener; |
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Method methodAllInstances; |
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|
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loader = createClassLoader(); |
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|
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classLookup = loader.loadClass(Lookup.class.getName()); |
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classLookups = loader.loadClass(Lookups.class.getName()); |
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classLookupListener = loader.loadClass(LookupListener.class.getName()); |
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classLookupResult = loader.loadClass(Lookup.Result.class.getName()); |
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classI = loader.loadClass(I.class.getName()); |
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methodMetainfServices = classLookups.getMethod("metaInfServices", ClassLoader.class); |
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Method methodLookupAll = classLookup.getMethod("lookupAll", Class.class); |
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methodLookupResult = classLookup.getMethod("lookupResult", Class.class); |
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methodAddLookupListener = classLookupResult.getMethod("addLookupListener", classLookupListener); |
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methodAllInstances = classLookupResult.getMethod("allInstances"); |
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Object lkp = methodMetainfServices.invoke(null, loader); |
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Object res = methodLookupResult.invoke(lkp, Serializable.class); |
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|
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Object listener = Proxy.newProxyInstance(loader, new Class[] { classLookupListener }, this); |
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methodAddLookupListener.invoke(res, listener); |
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|
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Collection<?> noneThere = (Collection<?>) methodAllInstances.invoke(res); |
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assertEquals("There is nothing yet: " + noneThere, 0, noneThere.size()); |
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methodLookupAll.invoke(lkp, classI); |
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|
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Collection<?> oneThere = (Collection<?>) methodAllInstances.invoke(res); |
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assertEquals("There is one item: " + oneThere, 1, oneThere.size()); |
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assertEquals("One change", 1, waitForOne()); |
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|
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return classLookup; |
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} |
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public void testClassLoaderCanGC() throws Exception { |
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Reference<?> ref = new WeakReference<Object>(createClass()); |
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assertGC("Can be GCed", ref); |
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} |
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private synchronized int waitForOne() throws InterruptedException { |
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while (cnt != 1) { |
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wait(); |
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} |
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return cnt; |
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} |
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|
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@Override |
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public synchronized Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
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if (method.getName().equals("resultChanged")) { // NOI18N |
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cnt++; |
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notifyAll(); |
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} |
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return null; |
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} |
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|
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|
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public static interface I { |
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} |
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@ServiceProvider(service=I.class) |
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public static final class Impl implements I, Serializable { |
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|
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} |
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} |