/*

 * Copyright (c) 2007, 2018, 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 gc

 *

 * @summary converted from VM Testbase gc/gctests/FinalizeTest04.

 * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]

 *

 * @library /vmTestbase

 *          /test/lib

 * @run driver jdk.test.lib.FileInstaller . .

 * @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);

    }

}