0N/A/*
2362N/A * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/* @test
0N/A * @bug 6232010
0N/A * @summary this test checks that replacing SoftCache class with ConcurrentMap
0N/A * in ObjectInputStream/ObjectOutputStream gives an opportunity to
0N/A * classes which are inherited from OIS and OOS and loaded through
0N/A * separete ClassLoaders be available for garbage collection
0N/A *
0N/A * @author Andrey Ozerov
0N/A * @run main/othervm/policy=security.policy SubclassGC
0N/A */
0N/A
0N/Aimport java.io.*;
0N/Aimport java.lang.ref.Reference;
0N/Aimport java.lang.ref.ReferenceQueue;
0N/Aimport java.lang.ref.WeakReference;
0N/Aimport java.lang.reflect.Constructor;
0N/Aimport java.net.URL;
0N/Aimport java.net.URLClassLoader;
0N/A
0N/Apublic class SubclassGC {
0N/A private static final long TIMEOUT = 1000;
0N/A
0N/A public static final void main(String[] args) throws Exception {
0N/A System.err.println("\n Regression test for bug 6232010\n");
0N/A if (System.getSecurityManager() == null) {
0N/A System.setSecurityManager(new SecurityManager());
0N/A }
0N/A
0N/A ClassLoader systemLoader = ClassLoader.getSystemClassLoader();
0N/A ClassLoader loader = new URLClassLoader(((URLClassLoader) systemLoader).getURLs(),
0N/A systemLoader.getParent());
0N/A Class<? extends ObjectOutputStream> cl =
0N/A Class.forName(SubclassOfOOS.class.getName(), false,
0N/A loader).asSubclass(ObjectOutputStream.class);
0N/A
0N/A Constructor<? extends ObjectOutputStream> cons =
0N/A cl.getConstructor(OutputStream.class);
0N/A
0N/A OutputStream os = new ByteArrayOutputStream();
0N/A ObjectOutputStream obj = cons.newInstance(os);
0N/A
0N/A final ReferenceQueue<Class<?>> queue = new ReferenceQueue<Class<?>>();
0N/A WeakReference<Class<?>> ref = new WeakReference<Class<?>>(cl, queue);
0N/A
0N/A cl = null;
0N/A obj = null;
0N/A loader = null;
0N/A cons = null;
0N/A systemLoader = null;
0N/A
0N/A System.err.println("\nStart Garbage Collection right now");
0N/A System.gc();
0N/A
0N/A Reference<? extends Class<?>> dequeued = queue.remove(TIMEOUT);
0N/A if (dequeued == ref) {
0N/A System.err.println("\nTEST PASSED");
0N/A } else {
0N/A throw new Error();
0N/A }
0N/A }
0N/A}