Tested with Tibco EMS 4.2 and 4.1 and there is a plugin and tutorial

The username, password and serverURL properties must be set on the plugin even if they're the same as on the connection factory.

• You cannot browse the EMS JNDI context as it throws a non-supported exception. The plugin however does correctly find any administered topics and queues bound into JNDI via the native administration API so use Discover Destinations to find them.