77 lines
2.6 KiB
Java
77 lines
2.6 KiB
Java
/*
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 7064279
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* @summary Tests that Introspector does not have strong references to context class loader
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* @author Sergey Malenkov
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* @run main/othervm -Xmx128m Test7064279
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*/
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import java.beans.Introspector;
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import java.io.File;
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import java.lang.ref.WeakReference;
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import java.net.URL;
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import java.net.URLClassLoader;
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public class Test7064279 {
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public static void main(String[] args) throws Exception {
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WeakReference ref = new WeakReference(test("test.jar", "test.Test"));
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try {
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int[] array = new int[1024];
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while (true) {
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array = new int[array.length << 1];
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}
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}
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catch (OutOfMemoryError error) {
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System.gc();
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}
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if (null != ref.get()) {
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throw new Error("ClassLoader is not released");
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}
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}
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private static Object test(String jarName, String className) throws Exception {
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StringBuilder sb = new StringBuilder(256);
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sb.append("file:");
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sb.append(System.getProperty("test.src", "."));
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sb.append(File.separatorChar);
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sb.append(jarName);
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ClassLoader newLoader = new URLClassLoader(new URL[] { new URL(sb.toString()) });
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ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
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Thread.currentThread().setContextClassLoader(newLoader);
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test(newLoader.loadClass(className));
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Thread.currentThread().setContextClassLoader(oldLoader);
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return newLoader;
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}
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private static void test(Class type) throws Exception {
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Introspector.getBeanInfo(type);
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}
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}
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