1d1641be2f
Add regression test for crash seen in 8005875. Test is run with G1 and PGCT=0 and issues "jcmd <pid> Thread.print" against itself. Without the fix for 8005875 the test will crash. Reviewed-by: brutisso
55 lines
2.0 KiB
Java
55 lines
2.0 KiB
Java
/*
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* Copyright (c) 2013, 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 TestG1ZeroPGCTJcmdThreadPrint
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* @key gc
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* @bug 8005875
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* @summary Use jcmd to generate a thread dump of a Java program being run with PGCT=0 to verify 8005875
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* @library /testlibrary
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* @run main/othervm -XX:+UseG1GC -XX:ParallelGCThreads=0 -XX:+IgnoreUnrecognizedVMOptions TestG1ZeroPGCTJcmdThreadPrint
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*/
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import com.oracle.java.testlibrary.*;
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public class TestG1ZeroPGCTJcmdThreadPrint {
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public static void main(String args[]) throws Exception {
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// Grab the pid from the current java process
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String pid = Integer.toString(ProcessTools.getProcessId());
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// Create a ProcessBuilder
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ProcessBuilder pb = new ProcessBuilder();
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// Run jcmd <pid> Thread.print
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pb.command(JDKToolFinder.getJDKTool("jcmd"), pid, "Thread.print");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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// There shouldn't be a work gang for concurrent marking.
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output.shouldNotContain("G1 Parallel Marking Threads");
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// Make sure we didn't crash
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output.shouldHaveExitValue(0);
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}
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}
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