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  * @test
  26  * @bug 6901572
  27  * @summary JVM 1.6.16 crash on loops: assert(has_node(i),"")
  28  *
  29  * @run main/othervm Test
  30  */
  31 
  32 
  33 public class Test {
  34 
  35     public static void main(String[] args) {
  36         for (int i = 0; i < 2; i++)
  37             NestedLoop();
  38     }
  39 
  40     public static long NestedLoop() {
  41         final int n = 50;
  42         long startTime = System.currentTimeMillis();
  43         int x = 0;
  44         for(int a = 0; a < n; a++)
  45             for(int b = 0; b < n; b++)
  46                 for(int c = 0; c < n; c++)
  47                     for(int d = 0; d < n; d++)
  48                         for(int e = 0; e < n; e++)
  49                             for(int f = 0; f < n; f++)
  50                                 x++;
  51         long stopTime = System.currentTimeMillis();
  52 
  53         return stopTime - startTime;
  54     }
  55 }