private void unknownCmpText() throws Exception {
beginTx();
UnknownCmpBean unknownCmpBean = new UnknownCmpBean_Subclass();
unknownCmpBean.ejbCreateObject("Joe Blow");
assertFalse(entityManager.contains(unknownCmpBean));
entityManager.persist(unknownCmpBean);
// extract primary key seems to require a flush followed by a merge