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annotate test/gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java @ 21345:a818a6a57ef4

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LIRTest: make LIRTestSpecification accessible.
author Josef Eisl <josef.eisl@jku.at>
date Tue, 12 May 2015 17:56:02 +0200
parents 06ab37f08701
children
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
06ab37f08701 8013184: CMS: Call reset_after_compaction() only if a compaction has been done
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /**
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25 * @test SystemGCOnForegroundCollector
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26 * @summary CMS: Call reset_after_compaction() only if a compaction has been done
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27 * @bug 8013184
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28 * @key gc
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29 * @key regression
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30 * @library /testlibrary
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31 * @run main/othervm SystemGCOnForegroundCollector
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32 * @author jon.masamitsu@oracle.com
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33 */
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34
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35 import com.oracle.java.testlibrary.*;
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36
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37 public class SystemGCOnForegroundCollector {
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38 public static void main(String args[]) throws Exception {
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39
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40 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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41 "-showversion",
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42 "-XX:+UseConcMarkSweepGC",
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43 "-XX:MaxTenuringThreshold=1",
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44 "-XX:-UseCMSCompactAtFullCollection",
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45 ThreePlusMSSystemGC.class.getName()
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46 );
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47
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48 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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49
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50 output.shouldNotContain("error");
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51
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52 output.shouldHaveExitValue(0);
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53 }
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54
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55 static class ThreePlusMSSystemGC {
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56 public static void main(String [] args) {
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57 // From running this test 3 System.gc() were always
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58 // enough to see the failure but the cause of the failure
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59 // depends on how objects are allocated in the CMS generation
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60 // which is non-deterministic. Use 30 iterations for a more
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61 // reliable test.
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62 for (int i = 0; i < 30; i++) {
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63 System.gc();
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64 }
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65 }
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66 }
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67 }