you need to enable statistics gathering on your Hibernate instances themselves before JBossON can take those metrics.
This is described in the manual at http://www.redhat.com/docs/en-US/JBoss_ON/2.3/html/Managed_Resources_Guide/Hibernate_Statistics_Service.html
Thanks Heiko - so that change needs to be made in the code. Since I am the admin, I cannot make this happen - correct.
yes at least the pushing to JMX needs to be done in code - enablement of statistics at all can be done through hibernate.properties:
Perhaps this could be a feature request for future Hibernate version