/*

 * Copyright (c) 2016, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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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package jdk.jfr.event.gc.collection;

import java.util.ArrayList;

import java.util.List;

/**

 * Simple application to provoke various kinds of GC.

 */

public class AppGCProvoker {

    private static List<byte[]> garbage = new ArrayList<>();

    public static Object trash;

    public static void main(String args[]) {

        // young gc

        for (int i = 0; i < 100; i++) {

             trash = new byte[100_000];

        }

        // system gc

        System.gc();

        // full gc caused by OOM

        try {

            while(true) {

                garbage.add(new byte[150_000]);

            }

        } catch (OutOfMemoryError e) {

            garbage = null;

        }

    }

}