Hi..i found the error i was trying to make a connection in oder way...the way of my getconnection now is: private Connection getConnection (){ try { InitialContext ctxt = new InitialContext(); DataSource ds = (DataSource) ctxt.lookup("java:DefaultDS"); conexion = ds.getConnection(); } catch (Exception except) { System.out.println("Error al obtener conexion"); } return conexion; } that was all..thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994883#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...