It works either this or just explicitly setting a cache provider as hibernate does not defaults to EhCache anymore. <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property> | <!-- | <property name="hibernate.cache.use_second_level_cache">false</property> | <property name="hibernate.cache.use_query_cache">false</property> | --> After spending lot of time on this I decided to write all the trials and errors here: http://www.len.ro/work/articles/jboss/jbpm-hibernate-cache/ Hope it helps, Len http://www.len.ro View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997955#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...