74 lines
2.7 KiB
Java
74 lines
2.7 KiB
Java
/*
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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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* This file is available under and governed by the GNU General Public
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* License version 2 only, as published by the Free Software Foundation.
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* However, the following notice accompanied the original version of this
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* file:
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*
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* Written by Doug Lea with assistance from members of JCP JSR-166
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* Expert Group and released to the public domain, as explained at
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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/*
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* @test
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* @author Doug Lea
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* @bug 8004138
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* @summary Check if ForkJoinPool table leaks thrown exceptions.
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* @run main/othervm -Xmx32m FJExceptionTableLeak
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*/
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import java.util.concurrent.*;
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public class FJExceptionTableLeak {
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// Run with TASKS_PER_STEP * 40 < Xmx < STEPS * TASKS_PER_STEP * 40
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// These work for Xmx32m:
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static final int STEPS = 2000;
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static final int TASKS_PER_STEP = 1000;
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static class FailingTaskException extends RuntimeException {}
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static class FailingTask extends RecursiveAction {
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public void compute() {
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throw new FailingTaskException();
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}
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}
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public static void main(String[] args) throws InterruptedException {
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ForkJoinPool pool = new ForkJoinPool(4);
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FailingTask[] tasks = new FailingTask[TASKS_PER_STEP];
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for (int k = 0; k < STEPS; ++k) {
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for (int i = 0; i < tasks.length; ++i)
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tasks[i] = new FailingTask();
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for (int i = 0; i < tasks.length; ++i)
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pool.execute(tasks[i]);
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for (int i = 0; i < tasks.length; ++i) {
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try {
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tasks[i].join();
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throw new AssertionError("should throw");
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} catch (FailingTaskException success) {}
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}
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}
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}
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}
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