xref: /openjdk10/test/failure_handler/test/sanity/OOME.java

/*
 * Copyright (c) 2015, 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
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 * questions.
 */


import java.util.LinkedList;

/*
 * @test
 * @summary Slowly eat all memory in an infinite loop
 * @run main/othervm Crash
 */
public class OOME {
    @SuppressWarnings ("UnusedDeclaration")
    private static Object garbage;
    public static void main(String args[]) {

        int chunkSize = 0x8000;
        LinkedList<int[]> list = new LinkedList<>();
        garbage = list;

        while (true) {
            try {
                list.add(new int[chunkSize]);
            } catch (OutOfMemoryError e) {
                chunkSize >>= 1;
            }
        }
    }
}