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/*
* Copyright (c) 1999, 2016, 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 4176355
* @summary Stopping a ThreadGroup that contains the current thread has
* unpredictable results.
*/
import java.util.concurrent.CountDownLatch;
public class Stop {
public static void main(String[] args) throws Exception {
final CountDownLatch ready = new CountDownLatch(1);
final ThreadGroup group = new ThreadGroup("");
final Thread second = new Thread(group, () -> {
ready.countDown();
while (true) {
try {
Thread.sleep(60000);
} catch (InterruptedException shouldNotHappen) {
}
}
});
final Thread first = new Thread(group, () -> {
// Wait until "second" is started
try {
ready.await();
} catch (InterruptedException shouldNotHappen) {
}
// Now stop the group
group.stop();
});
// Launch two threads as part of the same thread group
first.start();
second.start();
// Check that the second thread is terminated when the
// first thread terminates the thread group.
second.join();
// Test passed - if never get here the test times out and fails.
}
}
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