/*

 * 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

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 */

/*

 * This file is available under and governed by the GNU General Public

 * License version 2 only, as published by the Free Software Foundation.

 * However, the following notice accompanied the original version of this

 * file:

 *

 * Written by Martin Buchholz with assistance from members of JCP

 * JSR-166 Expert Group and released to the public domain, as

 * explained at http://creativecommons.org/publicdomain/zero/1.0/

 */

/*

 * @test

 * @bug 8054446 8137184 8137185

 * @summary Regression test for memory leak in remove(Object)

 * @run main/othervm -Xmx2200k RemoveLeak

 */

import java.util.concurrent.ConcurrentLinkedQueue;

public class RemoveLeak {

    public static void main(String[] args) {

        int i = 0;

        // Without bug fix, OutOfMemoryError was observed at iteration 65120

        int iterations = 10 * 65120;

        try {

            ConcurrentLinkedQueue<Long> queue = new ConcurrentLinkedQueue<>();

            queue.add(0L);

            while (i++ < iterations) {

                queue.add(1L);

                queue.remove(1L);

            }

        } catch (Error t) {

            System.err.printf("failed at iteration %d/%d%n", i, iterations);

            throw t;

        }

    }

}