1 /*
   2  * Copyright (c) 1999, 2005, 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
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  23 
  24 /*
  25  * @test
  26  * @author Gary Ellison
  27  * @bug 4170635
  28  * @summary Verify equals()/hashCode() contract honored
  29  * @modules java.base/sun.security.x509
  30  */
  31 
  32 import java.io.*;
  33 
  34 import sun.security.x509.*;
  35 
  36 public class AlgorithmIdEqualsHashCode {
  37 
  38     public static void main(String[] args) throws Exception {
  39 
  40         AlgorithmId ai1 = AlgorithmId.get("DH");
  41         AlgorithmId ai2 = AlgorithmId.get("DH");
  42         AlgorithmId ai3 = AlgorithmId.get("DH");
  43 
  44 
  45         // supposedly transitivity is broken
  46         // System.out.println(ai1.equals(ai2));
  47         // System.out.println(ai2.equals(ai3));
  48         // System.out.println(ai1.equals(ai3));
  49 
  50         if ( (ai1.equals(ai2)) == (ai2.equals(ai3)) == (ai1.equals(ai3)))
  51             System.out.println("PASSED transitivity test");
  52         else
  53             throw new Exception("Failed equals transitivity() contract");
  54 
  55         if ( (ai1.equals(ai2)) == (ai1.hashCode()==ai2.hashCode()) )
  56             System.out.println("PASSED equals()/hashCode() test");
  57         else
  58             throw new Exception("Failed equals()/hashCode() contract");
  59 
  60     }
  61 }