Looks like somebody enabled ehcache in hibernate.cfg.xml without the necessary setup. Try changing to the following in your hibernate.cfg.xml <property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property> | | and see if it helps. Note that hashtablecache is not recommended for production configurations. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033087#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...