1 /*
   2  * Copyright (c) 2010, 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 6910605
  28  * @summary C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
  29  *
  30  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+DeoptimizeALot -Xbatch Test
  31  *
  32  * original test: nsk/coverage/runtime/runtime007
  33  */
  34 
  35 import java.io.*;
  36 
  37 public class Test {
  38         public static int buf=0;
  39 
  40         public static void main( String argv[] ) {
  41                 System.exit(run(argv, System.out)+95);
  42         }
  43 
  44         public static int run(String argv[],PrintStream out) {
  45                 int ret=0, retx=0, bad=0;
  46 
  47                 for( int i=0; (i < 100000) && (bad < 10) ; i++ ) {
  48                         retx = OptoRuntime_f2i_Type(out);
  49                         ret += retx;
  50                         if( retx !=0 ) {
  51                                 out.println("i="+i);
  52                                 bad++;
  53                         }
  54                 }
  55                 return ret==0 ? 0 : 2 ;
  56         }
  57 
  58         public static int OptoRuntime_f2i_Type(PrintStream out) {
  59                 int c1=2, c2=3, c3=4, c4=5, c5=6;
  60                 int j=0, k=0;
  61                 try {
  62                         int[][] iii=(int[][])(new int[c1][c2]);
  63 
  64                         for( j=0; j<c1; j++ ) {
  65                                 for( k=0; k<c2; k++ ) {
  66                                         iii[j][k]=(int)((float)(j+1)/(float)(k+1));
  67                                 }
  68                         }
  69                 } catch (Throwable e) {
  70                         out.println("Unexpected exception " + e);
  71                         e.printStackTrace(out);
  72                         out.println("j="+j+", k="+k);
  73                         return 1;
  74                 }
  75                 return 0;
  76         }
  77 
  78 }