82 lines
2.8 KiB
Java
82 lines
2.8 KiB
Java
/*
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* Copyright Amazon.com Inc. 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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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyVetoException;
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import java.beans.beancontext.BeanContextSupport;
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import java.util.concurrent.TimeUnit;
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/**
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* @test
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* @bug 8238170
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* @summary Test for a possible deadlock in the BeanContextSupport
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*/
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public final class NotificationDeadlock {
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private static volatile long endtime;
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public static void main(String[] args) throws Exception {
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// Will run the test no more than 5 seconds
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endtime = System.nanoTime() + TimeUnit.SECONDS.toNanos(5);
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BeanContextSupport bcs = new BeanContextSupport();
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Thread add = new Thread(() -> {
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while (!isComplete()) {
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bcs.add(bcs);
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}
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});
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Thread remove = new Thread(() -> {
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while (!isComplete()) {
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Object[] objects = bcs.toArray();
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for (Object object : objects) {
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bcs.remove(object);
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}
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}
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});
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Thread props = new Thread(() -> {
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while (!isComplete()) {
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Object[] objects = bcs.toArray();
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for (Object object : objects) {
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PropertyChangeEvent beanContext = new PropertyChangeEvent(
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object, "beanContext", object, null);
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try {
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bcs.vetoableChange(beanContext);
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} catch (PropertyVetoException ignore) {
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}
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bcs.propertyChange(beanContext);
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}
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}
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});
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add.start();
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remove.start();
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props.start();
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add.join();
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remove.join();
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props.join();
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}
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private static boolean isComplete() {
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return endtime - System.nanoTime() < 0;
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}
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}
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