1 /*
   2  * Copyright (c) 2005, 2015, 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 6299180
  27  * @summary Test that immutability of ImmutableDescriptor cannot be
  28  * compromised by modifying field values that are arrays.
  29  * @author Eamonn McManus
  30  * @modules java.management
  31  * @run clean ImmutableArrayFieldTest
  32  * @run build ImmutableArrayFieldTest
  33  * @run main ImmutableArrayFieldTest
  34  */
  35 
  36 import java.util.Arrays;
  37 import javax.management.ImmutableDescriptor;
  38 
  39 public class ImmutableArrayFieldTest {
  40     public static void main(String[] args) throws Exception {
  41         boolean ok = true;
  42         ImmutableDescriptor d = new ImmutableDescriptor(
  43                 new String[] {
  44                     "strings", "ints", "booleans",
  45                 },
  46                 new Object[] {
  47                     new String[] {"foo"},
  48                     new int[] {5},
  49                     new boolean[] {false},
  50                 });
  51 
  52         String[] strings = (String[]) d.getFieldValue("strings");
  53         strings[0] = "bar";
  54         strings = (String[]) d.getFieldValue("strings");
  55         if (!strings[0].equals("foo")) {
  56             System.out.println("FAILED: modified string array field");
  57             ok = false;
  58         }
  59 
  60         int[] ints = (int[]) d.getFieldValue("ints");
  61         ints[0] = 0;
  62         ints = (int[]) d.getFieldValue("ints");
  63         if (ints[0] != 5) {
  64             System.out.println("FAILED: modified int array field");
  65             ok = false;
  66         }
  67 
  68         boolean[] bools = (boolean[]) d.getFieldValue("booleans");
  69         bools[0] = true;
  70         bools = (boolean[]) d.getFieldValue("booleans");
  71         if (bools[0]) {
  72             System.out.println("FAILED: modified boolean array field");
  73             ok = false;
  74         }
  75 
  76         Object[] values = d.getFieldValues("strings", "ints", "booleans");
  77         ((String[]) values[0])[0] = "bar";
  78         ((int[]) values[1])[0] = 0;
  79         ((boolean[]) values[2])[0] = true;
  80         values = d.getFieldValues("strings", "ints", "booleans");
  81         if (!((String[]) values[0])[0].equals("foo") ||
  82                 ((int[]) values[1])[0] != 5 ||
  83                 ((boolean[]) values[2])[0]) {
  84             System.out.println("FAILED: getFieldValues modifiable: " +
  85                     Arrays.deepToString(values));
  86         }
  87 
  88         if (ok)
  89             System.out.println("TEST PASSED");
  90         else
  91             throw new Exception("Array field values were modifiable");
  92     }
  93 }