This is on a JBoss 6.2 EAP instance. I have verified that the mbean is there and I can query it with jconsole. I do connect with an admin user there though. I've tried both the war and agent with same result (404 and not listed in the overall list). Everything except jboss.as:* is there though.
I'm trying to monitor datasource connection pools (e.g. jboss.as:subsystem=datasources/data-source=MySqlDS/statistics=pool) per some of the instructions and examples.