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 * @test 26 * @key stress gc 27 * 28 * @summary converted from VM Testbase gc/gctests/FinalizeTest04. 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.FinalizeTest04.FinalizeTest04 35 */ 36 37 package gc.gctests.FinalizeTest04; 38 39 import nsk.share.test.*; 40 import nsk.share.gc.*; 41 42 /** 43 * Test that synchronization between GC and finalizer thread 44 * (if any) is correct. 45 * 46 * This test creates objects that do GC-related work in finalizer, 47 * e.g. call System.gc(), System.runFinalization(), Algorithms.eatMemory(). 48 * 49 * @see nsk.share.gc.Algorithms#eatMemory() 50 * @see java.lang.System#gc() 51 * @see java.lang.System#runFinalization() 52 */ 53 public class FinalizeTest04 extends GCTestBase { 54 55 private int objectSize = 100; 56 private int objectCount = 100; 57 private ExecutionController stresser; 58 59 private class FinMemoryObject2 extends FinMemoryObject { 60 61 public FinMemoryObject2(int size) { 62 super(size); 63 } 64 65 protected void finalize() { 66 super.finalize(); 67 System.gc(); 68 Algorithms.eatMemory(stresser); 69 System.runFinalization(); 70 System.gc(); 71 Algorithms.eatMemory(stresser); 72 System.gc(); 73 } 74 } 75 76 public void run() { 77 stresser = new Stresser(runParams.getStressOptions()); 78 stresser.start(runParams.getIterations()); 79 for (int i = 0; i < objectCount; ++i) { 80 new FinMemoryObject2(objectSize); 81 } 82 Algorithms.eatMemory(stresser); 83 } 84 85 public static void main(String[] args) { 86 GC.runTest(new FinalizeTest04(), args); 87 } 88 }