1 /*

     2  * Copyright 1999 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 import java.security.*;

    25 

    26 /*

    27  * @test

    28  * @bug 4250093

    29  * @summary AccessControlContext throws NullPointerException

    30  * if the Combiner is null.

    31  */

    32 public class NullCombinerEquals {

    33     public static void main(String[] args) throws Exception {

    34         NullCombinerEquals nce = new NullCombinerEquals();

    35 

    36         try {

    37             nce.go();

    38         } catch (Exception e) {

    39             throw new Exception("Test Failed: " + e.toString());

    40         }

    41     }

    42 

    43     void go() throws Exception {

    44         AccessControlContext acc = AccessController.getContext();

    45 

    46         // test both combiners are NULL

    47         acc.equals(acc);

    48 

    49         // test one combiner is NULL

    50         AccessControlContext acc2 = new AccessControlContext(acc, new DC());

    51         acc.equals(acc2);

    52 

    53         // test other combiner is NULL

    54         acc2.equals(acc);

    55 

    56         // test neither combiner is NULL

    57         AccessControlContext acc3 = new AccessControlContext(acc, new DC());

    58         acc2.equals(acc3);

    59     }

    60 

    61     private static class DC implements DomainCombiner {

    62         public ProtectionDomain[] combine(ProtectionDomain[] a,

    63                                         ProtectionDomain[] b) {

    64             // this is irrelevant

    65             return a;

    66         }

    67     }

    68 }