1 /* 2 * Copyright (c) 2018, 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 }