unable to setup splunk4jmx app

I am having issues in setting up SPLUNK4JMX app. I am trying to connect to remote JBOSS JMX console but receive the following error in SPLUNK_HOME/SPLUNK4JMX/logs folder.

2011-06-28 12:12:48,483 ERROR [Thread-1] Error : Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.io.EOFException]

I have tried setup the SPLUNK_HOME and JAVA_HOME variables both in the poll_jmx.sh file and in bash_profile. We are using java hotspot for remote jvm.

java version "1.6.0_13" Java(TM) SE Runtime Environment (build 1.6.0_13-b03) Java HotSpot(TM) Server VM (build 11.3-b02, mixed mode)

We are constantly getting the above said error. We are trying to connect to a remote jvm and query on the server there. Kindly please help us where we are going wrong.