91 lines
3.5 KiB
Java
91 lines
3.5 KiB
Java
/*
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* Copyright (c) 2020, 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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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ThreadLocalRandom;
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import java.util.concurrent.atomic.AtomicReference;
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/*
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* @test
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* @bug 8254350
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* @run main SwallowedInterruptedException
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* @key randomness
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*/
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public class SwallowedInterruptedException {
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static final int ITERATIONS = 100;
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public static void main(String[] args) throws Throwable {
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for (int i = 1; i <= ITERATIONS; i++) {
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System.out.format("Iteration %d%n", i);
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CompletableFuture<Void> future = new CompletableFuture<>();
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CountDownLatch running = new CountDownLatch(1);
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AtomicReference<String> failed = new AtomicReference<>();
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Thread thread = new Thread(() -> {
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// signal main thread that child is running
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running.countDown();
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// invoke Future.get, it complete with the interrupt status set or
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// else throw InterruptedException with the interrupt status not set.
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try {
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future.get();
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// interrupt status should be set
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if (!Thread.currentThread().isInterrupted()) {
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failed.set("Future.get completed with interrupt status not set");
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}
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} catch (InterruptedException ex) {
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// interrupt status should be cleared
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if (Thread.currentThread().isInterrupted()) {
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failed.set("InterruptedException with interrupt status set");
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}
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} catch (Throwable ex) {
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failed.set("Unexpected exception " + ex);
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}
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});
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thread.setDaemon(true);
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thread.start();
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// wait for thread to run
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running.await();
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// interrupt thread and set result after an optional (random) delay
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thread.interrupt();
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long sleepMillis = ThreadLocalRandom.current().nextLong(10);
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if (sleepMillis > 0)
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Thread.sleep(sleepMillis);
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future.complete(null);
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// wait for thread to terminate and check for failure
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thread.join();
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String failedReason = failed.get();
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if (failedReason != null) {
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throw new RuntimeException("Test failed: " + failedReason);
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}
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}
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}
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}
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