test/hotspot/jtreg/gc/g1/plab/lib/AppPLABEvacuationFailure.java

/*
 * Copyright (c) 2016, 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.
 */
package gc.g1.plab.lib;

import java.util.ArrayList;

/**
 * Application that provokes Evacuation Failure
 */
public class AppPLABEvacuationFailure {

    public static final int CHUNK = 10000;
    public static ArrayList<Object> arr = new ArrayList<>();

    public static void main(String[] args) {
        System.gc();
        // First attempt.
        try {
            while (true) {
                arr.add(new byte[CHUNK]);
            }
        } catch (OutOfMemoryError oome) {
            arr.clear();
        }
        // Second attempt.
        try {
            while (true) {
                arr.add(new byte[CHUNK]);
            }
        } catch (OutOfMemoryError oome) {
            arr.clear();
        }
    }
}