After solving my last problem I now ran into another. I always got ORA-00904 (invalid column name) exceptions when using my entity beans. After I finaly managed to turn logging of SQL-statements on, I found out that JBoss seems to store information for CMRs within the original tables. Sice these already exist, JBoss doesn't create them new. But when he tries to write to the special CMR field ... BANG !
How can I get JBoss to use a seperate Table for CMR ? I can't edit the original table since It accesses the companies public database.