1 /*
2  * Copyright (c) 2007, 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 /*
26  * @test
27  * @key stress gc
28  *
29  * @summary converted from VM Testbase gc/ArrayJuggle/Juggle01.
30  * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent, quick]
31  *
32  * @library /vmTestbase
33  *          /test/lib
34  * @run driver jdk.test.lib.FileInstaller . .
35  * @run main/othervm -Xlog:gc=debug:gc.log gc.ArrayJuggle.Juggle01.Juggle01 -gp byteArr -ms low
36  */
37 
38 package gc.ArrayJuggle.Juggle01;
39 
40 import nsk.share.test.*;
41 import nsk.share.gc.*;
42 import nsk.share.gc.gp.*;
43 
44 /**
45  * This test randomly replaces elements of an array with new
46  * objects using given garbage producer and memory strategy.
47  */
48 public class Juggle01 extends ThreadedGCTest implements GarbageProducerAware, MemoryStrategyAware {
49         private GarbageProducer garbageProducer;
50         private MemoryStrategy memoryStrategy;
51         private Object[] array;
52         long objectSize;
53 
54         private class Juggler implements Runnable {
run()55                 public void run() {
56                         synchronized (this) {
57                                 int index = LocalRandom.nextInt(array.length);
58                                 array[index] = garbageProducer.create(objectSize);
59                         }
60                 }
61         }
62 
createRunnable(int i)63         protected Runnable createRunnable(int i) {
64                 return new Juggler();
65         }
66 
run()67         public void run() {
68                 log.debug("Garbage producer: " + garbageProducer);
69                 log.debug("Memory strategy: " + memoryStrategy);
70                 long memory = runParams.getTestMemory();
71                 int objectCount = memoryStrategy.getCount(memory);
72                 objectSize = memoryStrategy.getSize(memory);
73                 log.debug("Object count: " + objectCount);
74                 log.debug("Object size: " + objectSize);
75                 array = new Object[objectCount - 1];
76                 super.run();
77         }
78 
setGarbageProducer(GarbageProducer garbageProducer)79         public void setGarbageProducer(GarbageProducer garbageProducer) {
80                 this.garbageProducer = garbageProducer;
81         }
82 
setMemoryStrategy(MemoryStrategy memoryStrategy)83         public void setMemoryStrategy(MemoryStrategy memoryStrategy) {
84                 this.memoryStrategy = memoryStrategy;
85         }
86 
main(String[] args)87         public static void main(String[] args) {
88                 GC.runTest(new Juggle01(), args);
89         }
90 }
91