1 /*
   2  * Copyright (c) 2013, 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     7150256
  27  * @summary Basic Test for the DiagnosticCommandMBean
  28  * @author  Frederic Parain, Shanliang JIANG
  29  *
  30  * @modules jdk.management
  31  * @run main/othervm DcmdMBeanDoubleInvocationTest
  32  */
  33 
  34 
  35 import java.lang.management.ManagementFactory;
  36 import javax.management.MBeanServer;
  37 import javax.management.ObjectName;
  38 import javax.management.*;
  39 import javax.management.remote.*;
  40 
  41 public class DcmdMBeanDoubleInvocationTest {
  42 
  43     private static String HOTSPOT_DIAGNOSTIC_MXBEAN_NAME =
  44         "com.sun.management:type=DiagnosticCommand";
  45 
  46     public static void main(String[] args) throws Exception {
  47         System.out.println("--->JRCMD MBean Test: invocation on \"help VM.version\" ...");
  48 
  49         ObjectName name = new ObjectName(HOTSPOT_DIAGNOSTIC_MXBEAN_NAME);
  50         String[] helpArgs = {"-all", "\n", "VM.version"};
  51         Object[] dcmdArgs = {helpArgs};
  52         String[] signature = {String[].class.getName()};
  53 
  54         MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
  55         JMXServiceURL url = new JMXServiceURL("rmi", null, 0);
  56         JMXConnectorServer cs = null;
  57         JMXConnector cc = null;
  58         try {
  59             cs = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
  60             cs.start();
  61             JMXServiceURL addr = cs.getAddress();
  62             cc = JMXConnectorFactory.connect(addr);
  63             MBeanServerConnection mbsc = cc.getMBeanServerConnection();
  64 
  65             String result = (String) mbsc.invoke(name, "help", dcmdArgs, signature);
  66             System.out.println(result);
  67 
  68             throw new Error("Test failed: Double commands have not been detected");
  69         } catch (RuntimeMBeanException ex) {
  70             if (ex.getCause() instanceof IllegalArgumentException) {
  71                 System.out.println("JTest passed: Double commands have been detected");
  72             } else {
  73                 ex.printStackTrace();
  74                 throw new Error("TEST FAILED: got unknown exception "+ex);
  75             }
  76         } finally {
  77             try {
  78                 cc.close();
  79                 cs.stop();
  80             } catch (Exception e) {
  81             }
  82         }
  83     }
  84 }