120 lines
4.1 KiB
Java
120 lines
4.1 KiB
Java
/*
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* Copyright (c) 2014, 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 8035668
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* @requires vm.flagless
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* @library /test/lib
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* @summary Test checks case when target application finishes execution and jstat didn't complete work.
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jstat is started with interval = 100 (jstat -compiler 100) and monitored application finishes
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after 500ms. This shouldn't cause crash or hang in target application or in jstat.
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* @modules java.management
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* @build JStatInterval
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* @run main JStatInterval
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*/
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import jdk.test.lib.JDKToolLauncher;
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import jdk.test.lib.Utils;
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import jdk.test.lib.process.ProcessTools;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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public class JStatInterval {
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private static final String READY = "READY";
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private static final String ERROR = "!ERROR";
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public static class Application {
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public static void main(String[] args) {
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try {
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System.out.println(READY);
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System.out.flush();
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int exitCode = System.in.read();
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Thread.sleep(500);
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System.exit(exitCode);
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} catch (Exception e) {
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System.out.println(ERROR);
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System.out.flush();
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throw new Error(e);
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}
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}
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}
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public static void main(String[] args) throws Exception {
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ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(
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"-XX:+UsePerfData",
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Application.class.getName()
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);
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AtomicBoolean error = new AtomicBoolean(false);
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Process app = ProcessTools.startProcess(
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"application",
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pb,
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line -> {
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if (line.equals(READY)) {
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return true;
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} else if (line.equals(ERROR)) {
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error.set(true);
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return true;
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}
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return false;
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},
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10,
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TimeUnit.SECONDS
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);
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if (error.get()) {
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throw new Error("Unable to start the monitored application.");
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}
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String pidStr = String.valueOf(app.pid());
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JDKToolLauncher l = JDKToolLauncher.createUsingTestJDK("jstat");
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l.addVMArgs(Utils.getTestJavaOpts());
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l.addToolArg("-compiler");
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l.addToolArg(pidStr);
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l.addToolArg("100");
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ProcessBuilder jstatDef = new ProcessBuilder(l.getCommand());
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Process jstat = ProcessTools.startProcess(
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"jstat",
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jstatDef,
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line -> {
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if (line.trim().toLowerCase().startsWith("compiled")) {
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return true;
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}
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return false;
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},
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10,
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TimeUnit.SECONDS
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);
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app.getOutputStream().write(0);
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app.getOutputStream().flush();
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if (app.waitFor() != 0) {
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throw new Error("Error detected upon exiting the monitored application with active jstat");
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}
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if (jstat.waitFor() != 0) {
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throw new Error("Error detected in jstat when monitored application has exited prematurely");
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}
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}
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}
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