1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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  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).
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  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  * @bug 6177524
  27  * @summary Test how to execute the 3 Object methods by a Proxy.
  28  * @author Shanliang JIANG
  29  * @modules java.management
  30  * @run clean ProxyObjectMethodsTest
  31  * @run build ProxyObjectMethodsTest
  32  * @run main ProxyObjectMethodsTest
  33  */
  34 
  35 import java.lang.management.ManagementFactory;
  36 import java.lang.reflect.*;
  37 import java.util.*;
  38 
  39 import javax.management.*;
  40 import javax.management.remote.*;
  41 
  42 public class ProxyObjectMethodsTest {
  43 
  44     public static void main(String[] args) throws Exception {
  45         System.out.println("<<< Test how to execute the 3 Object methods by a Proxy.");
  46 
  47         MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
  48         final ObjectName name = new ObjectName(":class=Simple");
  49 
  50         JMXServiceURL url = new JMXServiceURL("rmi", null, 0);
  51         final JMXConnectorServer server =
  52             JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
  53         server.start();
  54         url = server.getAddress();
  55 
  56         final JMXConnector client = JMXConnectorFactory.connect(url);
  57 
  58         System.out.println("<<< Test the methods at local side.");
  59 
  60         final Simple simple = new Simple();
  61         mbs.registerMBean(simple, name);
  62 
  63         SimpleMBean simple0 =
  64             MBeanServerInvocationHandler.newProxyInstance(client.getMBeanServerConnection(),
  65                                                           name,
  66                                                           SimpleMBean.class,
  67                                                           false);
  68 
  69         SimpleMBean simple1 =
  70             MBeanServerInvocationHandler.newProxyInstance(client.getMBeanServerConnection(),
  71                                                           name,
  72                                                           SimpleMBean.class,
  73                                                           false);
  74 
  75         Simplest simple3 =
  76             MBeanServerInvocationHandler.newProxyInstance(client.getMBeanServerConnection(),
  77                                                           name,
  78                                                           Simplest.class,
  79                                                           false);
  80 
  81         if (!simple0.equals(simple1) ||
  82             simple0.equals(simple) ||
  83             simple0.equals(simple3)) {
  84             throw new RuntimeException("The method equals does not work correctly.");
  85         }
  86 
  87         if (simple0.hashCode() != simple1.hashCode() ||
  88             simple.hashCode() == simple0.hashCode()) {
  89             throw new RuntimeException("The method hashCode does not work correctly.");
  90         }
  91 
  92         if (!simple0.toString().equals(simple1.toString()) ||
  93             simple.toString().equals(simple0.toString())) {
  94             throw new RuntimeException("The method toString does not work correctly.");
  95         }
  96 
  97         /* Sorry about this.  This is the equals(String) method,
  98            which returns String, not boolean.  */
  99         if (!simple0.equals("foo").equals("foo"))
 100             throw new RuntimeException("The method equals(String) was not forwarded.");
 101 
 102         ArrayList al = new ArrayList();
 103         al.add(simple0);
 104 
 105         if (!al.contains(simple0) || !al.contains(simple1)) {
 106             throw new RuntimeException("Cannot find correctly a proxy in an ArrayList.");
 107         }
 108 
 109         System.out.println("<<< Test whether the methods are done at server side.");
 110 
 111         final ObjectName name1 = new ObjectName(":class=Test");
 112         mbs.registerMBean(new Test(), name1);
 113 
 114         TestMBean test0 = MBeanServerInvocationHandler.newProxyInstance(mbs,
 115                                                                 name1,
 116                                                                 TestMBean.class,
 117                                                                 false);
 118 
 119         if(test0.equals(test0)) {
 120             throw new RuntimeException("The method equals is not done remotely as expected.");
 121         }
 122 
 123         if (!test0.toString().equals("Test-toString")) {
 124             throw new RuntimeException("The method toString is not done remotely as expected.");
 125         }
 126 
 127         if (test0.hashCode() != 123) {
 128             throw new RuntimeException("The method hashCode is not done remotely as expected.");
 129         }
 130 
 131         System.out.println("<<< Test on using a null connection or a null name.");
 132         SimpleMBean simple2;
 133         try {
 134             simple2 = MBeanServerInvocationHandler.newProxyInstance(null,
 135                                                                 name,
 136                                                                 SimpleMBean.class,
 137                                                                 false);
 138             throw new RuntimeException(
 139                   "Null connection does not cause an IllegalArgumentException.");
 140         } catch (IllegalArgumentException ie) {
 141             // as expected
 142         }
 143 
 144         try {
 145             simple2 = MBeanServerInvocationHandler.newProxyInstance(mbs,
 146                                                                 null,
 147                                                                 SimpleMBean.class,
 148                                                                 false);
 149             throw new RuntimeException(
 150                   "Null object name does not cause an IllegalArgumentException.");
 151         } catch (IllegalArgumentException ie) {
 152             // as expected
 153         }
 154     }
 155 
 156     public static interface Simplest {
 157 
 158     }
 159 
 160     public static interface SimpleMBean extends Simplest {
 161         public String equals(String x);
 162     }
 163 
 164     private static class Simple implements SimpleMBean {
 165         public String equals(String x) {
 166             return x;
 167         }
 168     }
 169 
 170     public static interface TestMBean {
 171         public boolean equals(Object o);
 172 
 173         public String toString();
 174 
 175         public int hashCode();
 176     }
 177 
 178     private static class Test implements TestMBean {
 179         public boolean equals(Object o) {
 180             // what can do here?
 181 
 182             return false;
 183         }
 184 
 185         public String toString() {
 186             return "Test-toString";
 187         }
 188 
 189         public int hashCode() {
 190             return 123;
 191         }
 192     }
 193 }