1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    24 

    25 /*

    26  * @test

    27  * @bug 6795161

    28  * @summary Escape analysis leads to data corruption

    29  * @run main/othervm -server -Xcomp -XX:CompileOnly=Test -XX:+DoEscapeAnalysis Test

    30  */

    31 

    32 class Test_Class_1 {

    33     static String var_1;

    34 

    35     static void badFunc(int size)

    36     {

    37         try {

    38           for (int i = 0; i < 1; (new byte[size-i])[0] = 0, i++) {}

    39         } catch (Exception e) {

    40           // don't comment it out, it will lead to correct results ;)

    41           //System.out.println("Got exception: " + e);

    42         }

    43     }

    44 }

    45 

    46 public class Test {

    47     static String var_1_copy = Test_Class_1.var_1;

    48 

    49     static byte var_check;

    50 

    51     public static void main(String[] args)

    52     {

    53         var_check = 1;

    54 

    55         Test_Class_1.badFunc(-1);

    56 

    57         System.out.println("EATester.var_check = " + Test.var_check + " (expected 1)\n");

    58     }

    59 }

    60