Hello Markus, Try with the jndi name as "java:jdbc/QuartzDS". This might solve your problem. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4001005#4001005 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4001005