1 /*
   2  * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @key stress gc randomness
  27  *
  28  * @summary converted from VM Testbase gc/hashcode/HashCodeTestC.
  29  * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent, jrockit]
  30  * VM Testbase readme:
  31  * DESCRIPTION
  32  * Test that verifies external hash codes. This class tests the scenario
  33  * with  FullGC (compaction).
  34  *
  35  * COMMENTS
  36  * This test was ported from JRockit test suite.
  37  *
  38  * @library /vmTestbase
  39  *          /test/lib
  40  * @run driver jdk.test.lib.FileInstaller . .
  41  * @run main/othervm -XX:-UseGCOverheadLimit gc.hashcode.HashCodeTestC.HashCodeTestC
  42  */
  43 
  44 package gc.hashcode.HashCodeTestC;
  45 
  46 import gc.hashcode.HCHelper;
  47 import nsk.share.TestFailure;
  48 import nsk.share.gc.GC;
  49 import nsk.share.gc.GCTestBase;
  50 import nsk.share.test.Stresser;
  51 import nsk.share.gc.gp.GarbageUtils;
  52 
  53 /**
  54  * Test that verifies external hash codes. This class tests the scenario
  55  * with compaction.
  56  */
  57 public class HashCodeTestC extends GCTestBase {
  58 
  59 
  60     /**
  61      * Test external hash codes when a compaction have been performed.
  62      *
  63      * @return Success if all hash codes matches original hash codes
  64      */
  65     @Override
  66     public void run(){
  67         Stresser stresser = new Stresser(runParams.getStressOptions());
  68         stresser.start(0);
  69         HCHelper hch = new HCHelper(512, 3584, runParams.getSeed(),
  70                 0.7, 10240);
  71 
  72         hch.setupLists();
  73         hch.clearList(HCHelper.EVAC_LIST_1);
  74         GarbageUtils.eatMemory(stresser);
  75         if (!stresser.continueExecution()) {
  76             return;// we didn't trigger GC, nothing
  77         }
  78         boolean testResult = hch.verifyHashCodes();
  79         hch.cleanupLists();
  80 
  81         if(!testResult) {
  82             throw new TestFailure("Some hash codes didn't match");
  83         }
  84     }
  85 
  86     public static void main(String[] args) {
  87         GC.runTest(new HashCodeTestC(), args);
  88     }
  89 
  90 }