Fyi, I recently had to start multiple EAP instances to do some load
testing of the RHQ jboss-as-5 plugin. I had to make quite a few tweaks
to the OS (Fedora) and to the RHQ Agent and Server to make it happen. I
documented what I did here:
http://rhq-project.org/display/RHQ/Starting+Multiple+JBoss+AS+Instances
Hopefully, it will help someone else out at some point.
--Ian