Required upgrade.
Fine in ER7 build.
hibernate4-eap6.noarch 0:4.2.7-3.3.SP1_redhat_3.ep6.el5 is present in the repo and could be installed, however it is not a part of the group jboee-eap6. Marking as verified though.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2013-1785.html