1 /*
   2  * Copyright (c) 2009, 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
  27  *
  28  * @summary converted from VM Testbase gc/gctests/FinalizeTest05.
  29  * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
  30  *
  31  * @library /vmTestbase
  32  *          /test/lib
  33  * @run driver jdk.test.lib.FileInstaller . .
  34  * @run main/othervm -XX:-UseGCOverheadLimit gc.gctests.FinalizeTest05.FinalizeTest05
  35  */
  36 
  37 package gc.gctests.FinalizeTest05;
  38 
  39 import nsk.share.gc.*;
  40 import java.util.*;
  41 import nsk.share.TestFailure;
  42 import nsk.share.test.ExecutionController;
  43 import nsk.share.test.Stresser;
  44 
  45 /**
  46  */
  47 public class FinalizeTest05 extends GCTestBase {
  48 
  49     private final int allocRatio = 5;
  50     private final int size = 1024 * 2;
  51     private int count = 1000;
  52     private ExecutionController stresser;
  53 
  54     private void runOne() {
  55         ArrayList objs = new ArrayList(count);
  56         Object o;
  57         for (int i = 0; i < count; i++) {
  58             if (i % allocRatio == 0) {
  59                 o = new FinMemoryObject(size);
  60                 objs.add(o);
  61             } else {
  62                 o = new byte[size - Memory.getObjectExtraSize()];
  63             }
  64         }
  65         FinMemoryObject.dumpStatistics();
  66         o = null;
  67 
  68         /* force finalization  */
  69         Algorithms.eatMemory(stresser);
  70         System.gc();
  71         Runtime.getRuntime().runFinalization();
  72         System.gc();
  73         Runtime.getRuntime().runFinalization();
  74 
  75         FinMemoryObject.dumpStatistics();
  76 
  77         boolean error;
  78         System.out.println("Allocated: " + FinMemoryObject.getAllocatedCount());
  79         System.out.println("Finalized: " + FinMemoryObject.getFinalizedCount());
  80         error = (FinMemoryObject.getFinalizedCount() != 0);
  81 
  82         // Just hit the objs array to do say VM that we use this object
  83         // and it should be alive in this point.
  84         objs.clear();
  85         if (error) {
  86             throw new TestFailure("Test failed.");
  87         }
  88     }
  89 
  90     public void run() {
  91         stresser = new Stresser(runParams.getStressOptions());
  92         stresser.start(runParams.getIterations());
  93         count = (int) Math.min(runParams.getTestMemory() / size, Integer.MAX_VALUE);
  94         System.out.println("Allocating " + count
  95                 + " objects. 1 out of " + allocRatio
  96                 + " will have a finalizer.");
  97         System.out.flush();
  98         runOne();
  99     }
 100 
 101     public static void main(String[] args) {
 102         GC.runTest(new FinalizeTest05(), args);
 103     }
 104 }