1 /*
   2  * Copyright (c) 2013, 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     7150256
  27  * @summary Basic Test for the DiagnosticCommandMBean
  28  * @author  Frederic Parain, Shanliang JIANG
  29  *
  30  * @run main/othervm DcmdMBeanDoubleInvocationTest
  31  */
  32 
  33 
  34 import java.lang.management.ManagementFactory;
  35 import javax.management.MBeanServer;
  36 import javax.management.ObjectName;
  37 import javax.management.*;
  38 import javax.management.remote.*;
  39 
  40 public class DcmdMBeanDoubleInvocationTest {
  41 
  42     private static String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME =
  43         "com.sun.management:type=DiagnosticCommand";
  44 
  45     public static void main(String[] args) throws Exception {
  46         System.out.println("--->JRCMD MBean Test: invocation on \"help VM.version\" ...");
  47 
  48         ObjectName name = new ObjectName(HOTSPOT_DIAGNOSTIC_MXBEAN_NAME);
  49         String[] helpArgs = {"-all", "\n", "VM.version"};
  50         Object[] dcmdArgs = {helpArgs};
  51         String[] signature = {String[].class.getName()};
  52 
  53         MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
  54         JMXServiceURL url = new JMXServiceURL("rmi", null, 0);
  55         JMXConnectorServer cs = null;
  56         JMXConnector cc = null;
  57         try {
  58             cs = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
  59             cs.start();
  60             JMXServiceURL addr = cs.getAddress();
  61             cc = JMXConnectorFactory.connect(addr);
  62             MBeanServerConnection mbsc = cc.getMBeanServerConnection();
  63 
  64             String result = (String) mbsc.invoke(name, "help", dcmdArgs, signature);
  65             System.out.println(result);
  66 
  67             throw new Error("Test failed: Double commands have not been detected");
  68         } catch (RuntimeMBeanException ex) {
  69             if (ex.getCause() instanceof IllegalArgumentException) {
  70                 System.out.println("JTest passed: Double commands have been detected");
  71             } else {
  72                 ex.printStackTrace();
  73                 throw new Error("TEST FAILED: got unknown exception "+ex);
  74             }
  75         } finally {
  76             try {
  77                 cc.close();
  78                 cs.stop();
  79             } catch (Exception e) {
  80             }
  81         }
  82     }
  83 }