hi all i'm using jboss 4.2.1 and hibernate as persistence framework. We have a huge database and a lots of hbm file for mapping them. So when i run jboss during built session factory i get java.lang.OutOfMemoryError: PermGen space cause i have to much hbm.I already increased permgen size launching jboss but nothing chance. Exists a way for optimize hibernate and jboss memory usage? i know that this is not hibernate forum but there is quite hard getting credits for posting problems. Regards Giovanni View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078487#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...