There is an ebuild for Hibernate 3.0, this is an updated and improved version Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 74605 [details] Installs Hibernate 3.1
bump -- please add this to portage
*hibernate-3.1.3 (11 Jan 2007) 11 Jan 2007; Vlastimil Babka <caster@gentoo.org> +hibernate-3.1.3.ebuild: Version bump, based on ebuild from java overlay developed there by nichoj. Drops jboss USE flag - modular jboss4 is still only in the overlay, so use the overlay if you need it. Closes bug #115369 by Mike Slinn <mslinn@mslinn.com> marking fixed