68 lines
2.3 KiB
Java
68 lines
2.3 KiB
Java
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/*
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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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/**
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* @test SystemGCOnForegroundCollector
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* @summary CMS: Call reset_after_compaction() only if a compaction has been done
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* @bug 8013184
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* @key gc
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* @key regression
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* @library /testlibrary
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* @run main/othervm SystemGCOnForegroundCollector
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* @author jon.masamitsu@oracle.com
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*/
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import com.oracle.java.testlibrary.*;
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public class SystemGCOnForegroundCollector {
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public static void main(String args[]) throws Exception {
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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"-showversion",
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"-XX:+UseConcMarkSweepGC",
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"-XX:MaxTenuringThreshold=1",
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"-XX:-UseCMSCompactAtFullCollection",
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ThreePlusMSSystemGC.class.getName()
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);
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldNotContain("error");
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output.shouldHaveExitValue(0);
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}
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static class ThreePlusMSSystemGC {
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public static void main(String [] args) {
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// From running this test 3 System.gc() were always
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// enough to see the failure but the cause of the failure
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// depends on how objects are allocated in the CMS generation
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// which is non-deterministic. Use 30 iterations for a more
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// reliable test.
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for (int i = 0; i < 30; i++) {
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System.gc();
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}
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}
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}
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}
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