1 /*

     2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 public class AttemptOOM {

    25     private static MyObj[] data;

    26 

    27     public static void main(String[] args) throws Exception {

    28         System.out.println("Entering AttemptOOM main");

    29 

    30         // each MyObj will allocate 1024 byte array

    31         int sizeInMb = Integer.parseInt(args[0]);

    32         data = new MyObj[sizeInMb*1024];

    33 

    34         System.out.println("data.length = " + data.length);

    35 

    36         for (int i=0; i < data.length; i++) {

    37             data[i] = new MyObj(1024);

    38         }

    39 

    40         System.out.println("AttemptOOM allocation successful");

    41     }

    42 

    43     private static class MyObj {

    44         private byte[] myData;

    45         MyObj(int size) {

    46             myData = new byte[size];

    47         }

    48     }

    49 }