Memory leak fixed as part of https://hibernate.atlassian.net/browse/HHH-8363 and released in hibernate 4.3.0.Beta4 needs to be back ported to hibernate 4.2 and included in EAP6.2
HHH-8363 was backported to 4.2.x upstream. 4.2.6.Final will currently include 18 bug fixes, all (with the exception of HHH-8363) minor and backward compatable. https://hibernate.atlassian.net/issues/?jql=project%20%3D%20HHH%20AND%20fixVersion%20%3D%20%224.2.6%22%20ORDER%20BY%20updated%20DESC%2C%20priority%20DESC%2C%20created%20ASC
I'll cut 4.2.6.Final this afternoon.
Adding other BZs that I had originally deferred to 6.3.0 (all minor bug fixes) that will be included in 4.2.6.Final.
http://git.app.eng.bos.redhat.com/?p=hibernate/hibernate-core.git;a=shortlog;h=refs/tags/EAP-6.2_ER4 https://github.com/hibernate/hibernate-orm/releases/tag/4.2.6.Final
verified on EAP 6.2.0.ER4