Greetings, I think i know the problems. My situation is I use real database and not in memory database. So forgot 2 things which are :
1. I forgot to specify the ORM inside my persistence UML. So i put hibernate inside the persitence.xml 2. I forgot to put also the OracleDialect. After the two of them are in persistence XML, the openEJB can perist my entity. best regards sanga lawalata
