jdk-24/test/hotspot/jtreg/vmTestbase/gc/gctests/FinalizeTest04/FinalizeTest04.java
2020-07-10 11:49:02 -07:00

88 lines
2.7 KiB
Java

/*
* Copyright (c) 2007, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @key stress randomness
*
* @summary converted from VM Testbase gc/gctests/FinalizeTest04.
* VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
*
* @library /vmTestbase
* /test/lib
* @run main/othervm -XX:-UseGCOverheadLimit gc.gctests.FinalizeTest04.FinalizeTest04
*/
package gc.gctests.FinalizeTest04;
import nsk.share.test.*;
import nsk.share.gc.*;
/**
* Test that synchronization between GC and finalizer thread
* (if any) is correct.
*
* This test creates objects that do GC-related work in finalizer,
* e.g. call System.gc(), System.runFinalization(), Algorithms.eatMemory().
*
* @see nsk.share.gc.Algorithms#eatMemory()
* @see java.lang.System#gc()
* @see java.lang.System#runFinalization()
*/
public class FinalizeTest04 extends GCTestBase {
private int objectSize = 100;
private int objectCount = 100;
private ExecutionController stresser;
private class FinMemoryObject2 extends FinMemoryObject {
public FinMemoryObject2(int size) {
super(size);
}
protected void finalize() {
super.finalize();
System.gc();
Algorithms.eatMemory(stresser);
System.runFinalization();
System.gc();
Algorithms.eatMemory(stresser);
System.gc();
}
}
public void run() {
stresser = new Stresser(runParams.getStressOptions());
stresser.start(runParams.getIterations());
for (int i = 0; i < objectCount; ++i) {
new FinMemoryObject2(objectSize);
}
Algorithms.eatMemory(stresser);
}
public static void main(String[] args) {
GC.runTest(new FinalizeTest04(), args);
}
}