87 lines
3.6 KiB
Java
87 lines
3.6 KiB
Java
/*
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* Copyright (c) 2007, 2018, 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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/*
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* @test
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* @bug 6576792
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* @summary non-idle worker threads should not be interrupted
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* @library /test/lib
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*/
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import static java.util.concurrent.TimeUnit.MILLISECONDS;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.SynchronousQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import jdk.test.lib.Utils;
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public class SelfInterrupt {
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static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000);
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void test(String[] args) throws Throwable {
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final int n = 100;
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final ThreadPoolExecutor pool =
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new ThreadPoolExecutor(n, n, 1L, TimeUnit.NANOSECONDS,
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new SynchronousQueue<Runnable>());
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final CountDownLatch startingGate = new CountDownLatch(n);
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final CountDownLatch finishLine = new CountDownLatch(n);
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equal(pool.getCorePoolSize(), n);
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equal(pool.getPoolSize(), 0);
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for (int i = 0; i < n; i++)
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pool.execute(new Runnable() { public void run() {
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try {
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startingGate.countDown();
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startingGate.await();
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equal(pool.getPoolSize(), n);
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pool.setCorePoolSize(n);
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pool.setCorePoolSize(1);
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check(! Thread.interrupted());
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equal(pool.getPoolSize(), n);
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finishLine.countDown();
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finishLine.await();
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check(! Thread.interrupted());
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} catch (Throwable t) { unexpected(t); }}});
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finishLine.await();
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pool.shutdown();
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check(pool.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
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}
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//--------------------- Infrastructure ---------------------------
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volatile int passed = 0, failed = 0;
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void pass() {passed++;}
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void fail() {failed++; Thread.dumpStack();}
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void fail(String msg) {System.err.println(msg); fail();}
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void unexpected(Throwable t) {failed++; t.printStackTrace();}
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void check(boolean cond) {if (cond) pass(); else fail();}
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void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else fail(x + " not equal to " + y);}
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public static void main(String[] args) throws Throwable {
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new SelfInterrupt().instanceMain(args);}
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void instanceMain(String[] args) throws Throwable {
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try {test(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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}
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