/*
* Copyright (c) 2005, 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 6241823
* @summary Repeated timed tryAcquire shouldn't hang.
*/
import java.util.concurrent.*;
public class TimedAcquire {
public static void main(String[] args) throws Exception {
for (Semaphore sem : new Semaphore[]{ new Semaphore(0),
new Semaphore(0, false),
new Semaphore(0, true)})
for (int delay : new int[] {0, 1})
for (int i = 0; i < 3; i++)
if (sem.tryAcquire(delay, TimeUnit.MILLISECONDS))
throw new Error("Acquired Semaphore with no permits!");
System.out.println("Done!");
}
}