113 lines
3.5 KiB
Java
113 lines
3.5 KiB
Java
/*
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* Copyright (c) 2022, 2023, 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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/* @test
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* @bug 8289610 8249627 8205132 8320532
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* @summary Test that Thread stops throws UOE
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* @run junit ThreadStopTest
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*/
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import java.time.Duration;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.locks.LockSupport;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class ThreadStopTest {
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/**
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* Test current thread calling Thread.stop on itself.
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*/
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@Test
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void testCurrentThread() {
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var thread = Thread.currentThread();
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assertThrows(UnsupportedOperationException.class, thread::stop);
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}
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/**
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* Test Thread.stop on an unstarted thread.
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*/
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@Test
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void testUnstartedThread() {
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Thread thread = new Thread(() -> { });
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assertThrows(UnsupportedOperationException.class, thread::stop);
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assertTrue(thread.getState() == Thread.State.NEW);
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}
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/**
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* Test Thread.stop on a thread spinning in a loop.
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*/
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@Test
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void testRunnableThread() throws Exception {
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AtomicBoolean done = new AtomicBoolean();
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Thread thread = new Thread(() -> {
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while (!done.get()) {
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Thread.onSpinWait();
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}
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});
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thread.start();
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try {
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assertThrows(UnsupportedOperationException.class, thread::stop);
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// thread should not terminate
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boolean terminated = thread.join(Duration.ofMillis(500));
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assertFalse(terminated);
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} finally {
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done.set(true);
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thread.join();
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}
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}
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/**
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* Test Thread.stop on a thread that is parked.
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*/
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@Test
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void testWaitingThread() throws Exception {
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Thread thread = new Thread(LockSupport::park);
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thread.start();
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try {
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// wait for thread to park
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while ((thread.getState() != Thread.State.WAITING)) {
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Thread.sleep(10);
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}
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assertThrows(UnsupportedOperationException.class, thread::stop);
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assertTrue(thread.getState() == Thread.State.WAITING);
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} finally {
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LockSupport.unpark(thread);
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thread.join();
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}
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}
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/**
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* Test Thread.stop on a terminated thread.
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*/
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@Test
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void testTerminatedThread() throws Exception {
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Thread thread = new Thread(() -> { });
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thread.start();
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thread.join();
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assertThrows(UnsupportedOperationException.class, thread::stop);
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assertTrue(thread.getState() == Thread.State.TERMINATED);
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}
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}
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