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