Too, I obtain this error log. INFO: building session factory Exception in thread "JbpmScheduler" java.lang.NoClassDefFoundError at org.hibernate.tuple.EntityMetamodel.class$(EntityMetamodel.java:41) at org.hibernate.tuple.EntityMetamodel.(EntityMetamodel.java:122) at org.hibernate.persister.entity.AbstractEntityPersister.(Abstrac tEntityPersister.java:412) at org.hibernate.persister.entity.SingleTableEntityPersister.(Sing leTableEntityPersister.java:108) at org.hibernate.persister.PersisterFactory.createClassPersister(Persist View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994218#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...