1 /* 2 * Copyright (c) 2004, 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 5015663 27 * @summary Test ObjectInstance(name,null).hashCode() and .equals() 28 * @author Daniel Fuchs 29 * @modules java.management 30 * @run clean ObjectInstanceNullTest 31 * @run build ObjectInstanceNullTest 32 * @run main ObjectInstanceNullTest 33 */ 34 35 import javax.management.*; 36 37 public class ObjectInstanceNullTest { 38 39 public static void testEquals(ObjectInstance n1, ObjectInstance n2) { 40 try { 41 if (!n1.equals(n2) || !n2.equals(n1)) { 42 System.err.println("Equals yields false for: "+ 43 "["+n1.getObjectName()+" , "+ 44 n1.getClassName()+"] ["+ 45 n2.getObjectName()+" , "+ 46 n2.getClassName()+"]"); 47 System.exit(1); 48 } 49 } catch (Exception x) { 50 System.err.println("Equals failed for: "+ 51 "["+n1.getObjectName()+" , "+ 52 n1.getClassName()+"] ["+ 53 n2.getObjectName()+" , "+ 54 n2.getClassName()+"]: " + x); 55 x.printStackTrace(); 56 System.exit(2); 57 } 58 try { 59 if (n1.hashCode() != n2.hashCode()) { 60 System.err.println("Different hashCode() for: "+ 61 "["+n1.getObjectName()+" , "+ 62 n1.getClassName()+"] ["+ 63 n2.getObjectName()+" , "+ 64 n2.getClassName()+"]"); 65 System.exit(3); 66 } 67 } catch (Exception x) { 68 System.err.println("Hashcode failed for: "+ 69 "["+n1.getObjectName()+" , "+ 70 n1.getClassName()+"] ["+ 71 n2.getObjectName()+" , "+ 72 n2.getClassName()+"]: " + x); 73 x.printStackTrace(); 74 System.exit(4); 75 } 76 } 77 78 public static void testNotEquals(ObjectInstance n1, ObjectInstance n2) { 79 try { 80 if (n1.equals(n2) || n2.equals(n1)) { 81 System.err.println("Equals yields true for: "+ 82 "["+n1.getObjectName()+" , "+ 83 n1.getClassName()+"] ["+ 84 n2.getObjectName()+" , "+ 85 n2.getClassName()+"]"); 86 System.exit(5); 87 } 88 } catch (Exception x) { 89 System.err.println("!Equals failed for: "+ 90 "["+n1.getObjectName()+" , "+ 91 n1.getClassName()+"] ["+ 92 n2.getObjectName()+" , "+ 93 n2.getClassName()+"]: " + x); 94 x.printStackTrace(); 95 System.exit(6); 96 } 97 try { 98 if (n1.hashCode() == n2.hashCode()) { 99 System.out.println("Warning: Same hashCode() for: "+ 100 "["+n1.getObjectName()+" , "+ 101 n1.getClassName()+"] ["+ 102 n2.getObjectName()+" , "+ 103 n2.getClassName()+"]"); 104 } 105 } catch (Exception x) { 106 System.err.println("Hashcode failed for: "+ 107 "["+n1.getObjectName()+" , "+ 108 n1.getClassName()+"] ["+ 109 n2.getObjectName()+" , "+ 110 n2.getClassName()+"]: " + x); 111 x.printStackTrace(); 112 System.exit(7); 113 } 114 } 115 116 public static void main(String[] args) throws Exception { 117 System.out.println("Test ObjectInstance(name,null).equals() and " + 118 "ObjectInstance(name,null).hashCode()"); 119 try { 120 ObjectName toto1 = new ObjectName("Toto:foo=bar"); 121 ObjectName toto2 = new ObjectName("Toto:bar=foo"); 122 ObjectName clone1 = new ObjectName("Toto:bar=foo,cloned=yes"); 123 ObjectName clone2 = new ObjectName("Toto:cloned=yes,bar=foo"); 124 ObjectInstance n1 = new ObjectInstance(toto1,null); 125 ObjectInstance n2 = new ObjectInstance(toto1,null); 126 testEquals(n1,n1); 127 testEquals(n1,n2); 128 ObjectInstance n3 = new ObjectInstance(toto1,"Object"); 129 ObjectInstance n4 = new ObjectInstance(toto1,"Object"); 130 testEquals(n3,n3); 131 testEquals(n3,n4); 132 testNotEquals(n1,n3); 133 ObjectInstance n5 = new ObjectInstance(toto2,null); 134 ObjectInstance n6 = new ObjectInstance(toto2,"Object"); 135 testEquals(n5,n5); 136 testEquals(n6,n6); 137 testNotEquals(n5,n1); 138 testNotEquals(n5,n3); 139 testNotEquals(n6,n1); 140 testNotEquals(n6,n3); 141 testNotEquals(n5,n6); 142 ObjectInstance n7 = new ObjectInstance(clone1,null); 143 ObjectInstance n8 = new ObjectInstance(clone2,null); 144 testEquals(n7,n8); 145 testNotEquals(n7,n1); 146 testNotEquals(n7,n5); 147 ObjectInstance n9 = new ObjectInstance(clone1,"Object"); 148 ObjectInstance n10 = new ObjectInstance(clone2,"Object"); 149 testEquals(n9,n10); 150 testNotEquals(n9,n1); 151 testNotEquals(n9,n5); 152 testNotEquals(n9,n7); 153 testNotEquals(n9,n8); 154 testNotEquals(n10,n1); 155 testNotEquals(n10,n5); 156 testNotEquals(n10,n7); 157 testNotEquals(n10,n8); 158 } catch( Exception x) { 159 System.err.println("Unexpected exception: " + x); 160 x.printStackTrace(); 161 System.exit(8); 162 } 163 } 164 165 }