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