99 lines
3.0 KiB
Java
99 lines
3.0 KiB
Java
/*
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* Copyright (c) 2015, 2024, 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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* @summary Create daemon and non-deamon threads.
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* Check the correctness of thread's status from jstack.
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* @modules java.base/jdk.internal.misc
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* @library /test/lib
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* @library ../share
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* @run main/othervm -XX:+UsePerfData DaemonThreadTest
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*/
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import common.ToolResults;
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import utils.*;
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public class DaemonThreadTest {
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static class NormalThread extends Thread {
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NormalThread() {
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setDaemon(false);
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}
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@Override
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public void run() {
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Utils.sleep();
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}
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}
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static class DaemonThread extends Thread {
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DaemonThread() {
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setDaemon(true);
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}
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@Override
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public void run() {
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Utils.sleep();
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}
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}
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public static void main(String[] args) throws Exception {
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testNoDaemon();
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testDaemon();
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}
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private static void testNoDaemon() throws Exception {
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testThread(new NormalThread(), "");
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}
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private static void testDaemon() throws Exception {
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testThread(new DaemonThread(), "daemon");
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}
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private static void testThread(Thread thread, String expectedType) throws Exception {
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// Start the thread
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thread.start();
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// Run jstack tool and collect the output
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JstackTool jstackTool = new JstackTool(ProcessHandle.current().pid());
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ToolResults results = jstackTool.measure();
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int exitCode = results.getExitCode();
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if (exitCode != 0) {
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throw new RuntimeException("jstack tool failed with an exit code " + exitCode);
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}
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// Analyze the jstack output for the correct thread type
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JStack jstack = new DefaultFormat().parse(results.getStdoutString());
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ThreadStack ti = jstack.getThreadStack(thread.getName());
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if (!ti.getType().trim().equals(expectedType)) {
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throw new RuntimeException("incorrect thread type '" + ti.getType() + "' for the thread '" + thread.getName() + "'");
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}
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}
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}
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