author | iignatyev |
Mon, 17 Sep 2018 11:50:39 -0700 | |
changeset 51769 | 0ae80830256e |
parent 51754 | 594919232b8f |
permissions | -rw-r--r-- |
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/* |
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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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} |