The current version of the jvm_monitor 1.48 probe uses standard jconsole JMX connections to fetch its data.
We raised a case (00693125) to see if it's possible to get at the JBoss jconsole MBeans, after finding a CA APM article touching on the subject :
and a Red Hat support article :
(behind a login-wall).
We were recommended to raise it here as an augmentation request, as this is not possible with the current version of the probe.