Hey Romain and Andy! Wow - good call and a perfect throw!
I do list the classes in persistence.xml due to the fact that I am using multiple databases. So the setting is: persistence.xml: <exclude-unlisted-classes>true</exclude-unlisted-classes> After I added the missing mapped super class TradingVenue it started working again: <class>de.visolutions.mis.entities.TradingVenue</class> Whether abstract or not did not make any difference though. Thank you very much! Enjoy TomEE, Jack -- View this message in context: http://tomee-openejb.979440.n4.nabble.com/Java-Persistence-API-MappedSuperclass-not-working-tp4676978p4676987.html Sent from the TomEE Users mailing list archive at Nabble.com.
