Hi, I want to get the reference of the MBeanServer of my running JBOSS from my standalone program. And on the MBeanServer instance I want to invoke getVersionName() of the MBean Server. But after getting the Server Object Instance Class I can not type case to the org.jboss.system.server.ServerImpl. Code is given below : Can My Approach is OK ?? anonymous wrote : Hashtable env = new Hashtable(); | String factory = "org.jnp.interfaces.NamingContextFactory"; | env.put(Context.INITIAL_CONTEXT_FACTORY, factory); | String url1 = "jnp://localhost:1099"; | env.put(Context.PROVIDER_URL, url1); | Context ctx = new InitialContext(env); | | | MBeanServerConnection mconn = (MBeanServerConnection)ctx.lookup("jmx/invoker/RMIAdaptor"); | if(null!=mconn){ | | ObjectName serverObj = new ObjectName("jboss.system:type=Server"); | System.out.println("Version = " + (String)mconn.getAttribute(serverObj, new String("Version"))); | ObjectInstance serverObjInst = mconn.getObjectInstance(serverObj); | System.out.println(serverObj + "\n\t Server Object Instance Class Name =" + serverObjInst.getClassName()); | | | if(mconn.isInstanceOf(serverObj,"org.jboss.system.server.ServerImpl")){ | | System.out.println("-----------------------------"); | | org.jboss.system.server.ServerImpl serverImpl = (org.jboss.system.server.ServerImpl)mconn; | | System.out.println("@@ --- MBean Server Version name = "+serverImpl.getVersionName()); | } -------------------------------------------------------------------------------- I got the following exception java.lang.ClassCastException: $Proxy0 at com.test.client.MDBLocater.test(MDBLocater.java:56) at com.test.client.MDBLocater.main(MDBLocater.java:130) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:86) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079486#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...