1 /*

     2  * Copyright (c) 2017, 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 8186654

    27  * @summary Transpositions of an array result in the same

    28  *          EqualByteArray.hashCode()

    29  * @modules java.base/sun.security.util

    30  */

    31 

    32 import sun.security.util.Cache;

    33 

    34 public class EbaHash {

    35     public static void main(String[] args) throws Throwable {

    36         int h1 = new Cache.EqualByteArray(new byte[] {1,2,3}).hashCode();

    37         int h2 = new Cache.EqualByteArray(new byte[] {2,3,1}).hashCode();

    38         int h3 = new Cache.EqualByteArray(new byte[] {3,1,2}).hashCode();

    39         if (h1 == h2 && h2 == h3) {

    40             throw new RuntimeException("Transpositions of an array" +

    41                 " resulted in the same hashCode()");

    42         }

    43     }

    44 }