1 /* 2 * Copyright (c) 2009, 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 25 /** 26 * @test 27 * @bug 6849574 28 * @summary VM crash using NonBlockingHashMap (high_scale_lib) 29 * 30 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+VerifyBeforeGC Test 31 */ 32 33 import java.util.concurrent.atomic.*; 34 35 public class Test extends Thread { 36 37 public static void main(String[] args) { 38 AtomicReferenceArray a = new AtomicReferenceArray(10000); 39 for (int i = 0; i < 100000; i++) { 40 a.getAndSet(9999, new Object()); 41 if (i > 99990) System.gc(); 42 } 43 } 44 }