115 lines
4.8 KiB
Java
115 lines
4.8 KiB
Java
/*
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* Copyright (c) 2021, 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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/**
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* @test
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* @bug 8262271
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* @requires vm.hasSA
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* @library /test/lib
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* @run main/timeout=240 JStackStressTest
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*/
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import java.io.IOException;
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import java.io.OutputStream;
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import jdk.test.lib.JDKToolLauncher;
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import jdk.test.lib.JDKToolFinder;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.SA.SATestUtils;
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import jdk.test.lib.Utils;
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public class JStackStressTest {
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static Process jShellProcess;
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public static void testjstack() throws IOException {
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launchJshell();
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long jShellPID = jShellProcess.pid();
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OutputAnalyzer jshellOutput = new OutputAnalyzer(jShellProcess);
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try {
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// Do 4 jstacks on the jshell process as it starts up
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for (int i = 1; i <= 4; i++) {
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JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
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launcher.addVMArgs(Utils.getTestJavaOpts());
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launcher.addToolArg("jstack");
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launcher.addToolArg("--pid=" + Long.toString(jShellPID));
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System.out.println("###### Starting jstack iteration " + i + " against " + jShellPID);
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long startTime = System.currentTimeMillis();
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ProcessBuilder processBuilder = SATestUtils.createProcessBuilder(launcher);
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OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
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System.out.println("jhsdb jstack stdout:");
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System.out.println(output.getStdout());
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System.out.println("jhsdb jstack stderr:");
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System.out.println(output.getStderr());
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long elapsedTime = System.currentTimeMillis() - startTime;
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System.out.println("###### End of all output for iteration " + i +
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" which took " + elapsedTime + "ms");
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output.shouldHaveExitValue(0);
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// This will detect most SA failures, including during the attach.
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output.shouldNotMatch("^sun.jvm.hotspot.debugger.DebuggerException:.*$");
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// This will detect unexpected exceptions, like NPEs and asserts, that are caught
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// by sun.jvm.hotspot.tools.Tool.execute().
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output.shouldNotMatch("^Error: .*$");
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}
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} catch (Exception ex) {
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throw new RuntimeException("Test ERROR " + ex, ex);
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} finally {
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try (OutputStream out = jShellProcess.getOutputStream()) {
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out.write("/exit\n".getBytes());
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out.flush();
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}
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try {
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jShellProcess.waitFor(); // jshell should exit quickly
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} catch (InterruptedException e) {
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}
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System.out.println("jshell Output: " + jshellOutput.getOutput());
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}
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}
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public static void launchJshell() throws IOException {
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System.out.println("Starting Jshell");
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long startTime = System.currentTimeMillis();
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try {
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JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jshell");
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launcher.addVMArgs(Utils.getTestJavaOpts());
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ProcessBuilder pb = new ProcessBuilder(launcher.getCommand());
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jShellProcess = ProcessTools.startProcess("JShell", pb);
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} catch (Exception ex) {
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throw new RuntimeException("Test ERROR " + ex, ex);
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}
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}
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public static void main(String[] args) throws Exception {
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SATestUtils.skipIfCannotAttach(); // throws SkippedException if attach not expected to work.
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testjstack();
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// The test throws RuntimeException on error.
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// IOException is thrown if Jshell can't start because of some bad
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// environment condition
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System.out.println("Test PASSED");
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}
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}
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