1 /*

     2  * Copyright (c) 2002, 2013, 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 7167125

    27  * @summary Two variables after the same operation in a inner class return

    28  * different results

    29  * @run main DiffResultAfterSameOperationInnerClasses

    30  */

    31 

    32 public class DiffResultAfterSameOperationInnerClasses {

    33     public int i = 1;

    34     private int j = 1;

    35     public String s1 = "Hi, ";

    36     private String s2 = "Hi, ";

    37 

    38     public static void main(String[] args) {

    39         InnerClass inner =

    40                 new DiffResultAfterSameOperationInnerClasses().new InnerClass();

    41         if (!inner.test()) {

    42             throw new AssertionError("Different results after same calculation");

    43         }

    44     }

    45 

    46     class InnerClass {

    47         public boolean test() {

    48             i += i += 1;

    49             j += j += 1;

    50 

    51             s1 += s1 += "dude";

    52             s2 += s2 += "dude";

    53 

    54             System.out.println("s1 = " + s1);

    55             System.out.println("s2 = " + s2);

    56 

    57             return (i == j && i == 3 &&

    58                     s1.equals(s2) && s1.endsWith("Hi, Hi, dude"));

    59         }

    60     }

    61 }