Hey, I'm one step further, (I think). I suddenly realised I might have to include the META-INF directory, something I not always do when I'm writing small apps for testing. Doing this gives other errors now, still related to persistence, but I hope I can solve myself. Thanks a lot. Kurt
-- View this message in context: http://openejb.979440.n4.nabble.com/tomee-eclipselink-NoClassDefFoundError-ClassNotFoundException-tp4658870p4658884.html Sent from the OpenEJB User mailing list archive at Nabble.com.