Proxool is a Java connection pool. It is used by hibernate. It should be added to dev-java.
Created attachment 41731 [details] The ebuild for proxool 0.8.3
closing since it's already in the portage tree: *proxool-0.8.3 (27 Dec 2004) 27 Dec 2004; Lim Swee Tat <st_lim@gentoo.org> +metadata.xml, +proxool-0.8.3.ebuild: Initial commit for hibernate