Works fine on JBoss5 Beta-4 for me. I have a similar EJB (but without the Spring related stuff): @Stateless | @Remote ({UserManager.class}) | @RemoteBinding (jndiBinding = "RemoteUserManagerBean") | public class UserManagerBean implements UserManager { | | /** | * Instance of logger | */ | private static Logger logger = Logger.getLogger(UserManagerBean.class); | | @PersistenceContext | private EntityManager entityManager; | | @Resource | private SessionContext sessionContext; | | @Resource(name = "jdbc/TestDs", type = DataSource.class, shareable = true, mappedName = "java:DefaultDS") | private DataSource dataSource; | | @PostConstruct | public void init() { | setDataSource(dataSource); | } | | private void setDataSource(DataSource ds) { | System.out.println("Do nothing ---> " + ds); | } | } The application deploys fine and accesing this bean too works fine. Are you sure that the datasource has been deployed, before this bean is being accessed? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4129821#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...