Try to chnage your lookup code to | ... | ds = (DataSource)ic.lookup("java:JDBC/SybaseDS"); | ... | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169226#4169226 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4169226