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