102 lines
3.3 KiB
Java
102 lines
3.3 KiB
Java
/*
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* Copyright (c) 2020, 2021, 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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* @run testng AsyncShutdownNowInvokeAny
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* @summary A variant of AsyncShutdownNow useful for race bug hunting
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*/
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// TODO: reorganize all of the AsyncShutdown tests
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import java.util.List;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ForkJoinPool;
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import java.util.concurrent.Future;
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import java.util.concurrent.RejectedExecutionException;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.TimeUnit;
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import org.testng.annotations.AfterClass;
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import org.testng.annotations.BeforeClass;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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public class AsyncShutdownNowInvokeAny {
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// long running interruptible task
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private static final Callable<Void> SLEEP_FOR_A_DAY = () -> {
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Thread.sleep(86400_000);
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return null;
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};
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private ScheduledExecutorService scheduledExecutor;
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@BeforeClass
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public void setup() {
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scheduledExecutor = Executors.newScheduledThreadPool(1);
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}
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@AfterClass
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public void teardown() {
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scheduledExecutor.shutdown();
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}
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/**
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* Schedule the given executor service to be shutdown abruptly after the given
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* delay, in seconds.
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*/
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private void scheduleShutdownNow(ExecutorService executor, int delayInSeconds) {
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scheduledExecutor.schedule(() -> {
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executor.shutdownNow();
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return null;
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}, delayInSeconds, TimeUnit.SECONDS);
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}
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/**
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* Test shutdownNow with thread blocked in invokeAny.
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*/
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@Test
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public void testInvokeAny() throws Exception {
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final int reps = 4;
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for (int rep = 1; rep < reps; rep++) {
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ExecutorService pool = new ForkJoinPool(1);
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scheduleShutdownNow(pool, 5);
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try {
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try {
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// execute long running tasks
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pool.invokeAny(List.of(SLEEP_FOR_A_DAY, SLEEP_FOR_A_DAY));
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assertTrue(false);
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} catch (ExecutionException | RejectedExecutionException e) {
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// expected
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}
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} finally {
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pool.shutdown();
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}
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}
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}
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}
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