jdk-24/test/hotspot/jtreg/serviceability/sa/DeadlockDetectionTest.java
2021-06-10 17:06:19 +00:00

95 lines
3.5 KiB
Java

/*
* Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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/**
* @test
* @summary Test deadlock detection
* @requires vm.hasSA
* @library /test/lib
* @modules java.base/jdk.internal.misc
* @modules java.management
* @run driver DeadlockDetectionTest
*/
import java.util.stream.Collectors;
import jdk.test.lib.apps.LingeredApp;
import jdk.test.lib.apps.LingeredAppWithDeadlock;
import jdk.test.lib.JDKToolLauncher;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.SA.SATestUtils;
import jdk.test.lib.Utils;
import jtreg.SkippedException;
public class DeadlockDetectionTest {
private static LingeredAppWithDeadlock theApp = null;
private static OutputAnalyzer jstack(String... toolArgs) throws Exception {
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
launcher.addVMArgs(Utils.getTestJavaOpts());
launcher.addToolArg("jstack");
if (toolArgs != null) {
for (String toolArg : toolArgs) {
launcher.addToolArg(toolArg);
}
}
ProcessBuilder processBuilder = SATestUtils.createProcessBuilder(launcher);
System.out.println(processBuilder.command().stream().collect(Collectors.joining(" ")));
OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
System.out.println(output.getOutput());
return output;
}
public static void main(String[] args) throws Exception {
SATestUtils.skipIfCannotAttach(); // throws SkippedException if attach not expected to work.
System.out.println("Starting DeadlockDetectionTest");
if (!LingeredApp.isLastModifiedWorking()) {
// Exact behaviour of the test depends on operating system and the test nature,
// so just print the warning and continue
System.err.println("Warning! Last modified time doesn't work.");
}
try {
theApp = new LingeredAppWithDeadlock();
LingeredApp.startApp(theApp, "-XX:+UsePerfData");
OutputAnalyzer output = jstack("--pid", Long.toString(theApp.getPid()));
System.out.println(output.getOutput());
if (output.getExitValue() == 3) {
throw new SkippedException("Test can't run for some reason");
} else {
output.shouldHaveExitValue(0);
output.shouldContain("Found a total of 1 deadlock.");
}
} finally {
LingeredApp.stopApp(theApp);
}
}
}