hotspot/test/compiler/6772683/InterruptedTest.java
author xdono
Tue, 28 Jul 2009 12:12:40 -0700
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child 5547 f4b087cbb361
permissions -rw-r--r--
6862919: Update copyright year Summary: Update copyright for files that have been modified in 2009, up to 07/09 Reviewed-by: tbell, ohair
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/*
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 * Copyright 2008-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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/*
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 * @test
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 * @bug 6772683
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 * @summary Thread.isInterrupted() fails to return true on multiprocessor PC
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 * @run main/othervm InterruptedTest
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 */
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public class InterruptedTest {
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    public static void main(String[] args) throws Exception {
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        Thread workerThread = new Thread("worker") {
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            public void run() {
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                System.out.println("Worker thread: running...");
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                while (!Thread.currentThread().isInterrupted()) {
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                }
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                System.out.println("Worker thread: bye");
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            }
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        };
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        System.out.println("Main thread: starts a worker thread...");
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        workerThread.start();
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        System.out.println("Main thread: waits at most 5s for the worker thread to die...");
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        workerThread.join(5000); // Wait 5 sec to let run() method to be compiled
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        int ntries = 0;
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        while (workerThread.isAlive() && ntries < 5) {
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            System.out.println("Main thread: interrupts the worker thread...");
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            workerThread.interrupt();
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            if (workerThread.isInterrupted()) {
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                System.out.println("Main thread: worker thread is interrupted");
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            }
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            ntries++;
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            System.out.println("Main thread: waits for the worker thread to die...");
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            workerThread.join(1000); // Wait 1 sec and try again
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        }
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        if (ntries == 5) {
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          System.out.println("Main thread: the worker thread dod not die");
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          System.exit(97);
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        }
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        System.out.println("Main thread: bye");
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    }
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}