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
  31  *      compiler.c1.Test6849574
  32  */
  33 
  34 package compiler.c1;
  35 
  36 import java.util.concurrent.atomic.AtomicReferenceArray;
  37 
  38 public class Test6849574 extends Thread {
  39 
  40     public static void main(String[] args) {
  41         AtomicReferenceArray a = new AtomicReferenceArray(10000);
  42         for (int i = 0; i < 100000; i++) {
  43             a.getAndSet(9999, new Object());
  44             if (i > 99990) System.gc();
  45         }
  46     }
  47 }