Hi, I am using Jboss as my application server , and trying to invoke an MBean through java code. My class extends org.jboss.system.ServiceMBeanSupport , the MBean name is--> jboss.jca:name=superPnrDB2DS,service=ManagedConnectionFactory and my code snippet is ObjectName objName=new ObjectName("jboss.jca:name=superPnrDB2DS,service=ManagedConnectionFactory"); The problem that i am facing now, is that this works perfectly fine for some of the environments , but does not work in others, even though the same version of Jboss 4.2 is being used , and the error is ||||ERROR||com.g2switch.serverstatus.ServerMBeanService||http-clyde/10.194.69.25-8080-1|initializeDBdetails : InstanceNotFoundExceptionjboss.jca:name=superPnrDB2DS,service=Managed ConnectionFactory| . Please help me in trying to resolve this problem. Regards Rahul View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4220439#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...