"esteveavi" wrote : | I'm using Spring 2.5 + Hibernate JPA impl and I run into a name not found exception with a Oracle datasource in JBoss 4.0.4. | What exception are you getting , give us the details about the error and the code which you are using to get the DataSource from jndi ? You should not be replacing the jboss-jca.jar across the Jboss versions . View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143661#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...