j2eeTx.getExtendedEntityManager(emf);
// If there's not already an EntityManager registered for
// this extended EntityManagerFactory within the current tx
if (extendedEmAssociatedWithTx == null) {
j2eeTx.addExtendedEntityManagerMapping(emf,
extendedEm);
sessionCtx.setEmfRegisteredWithTx(emf, true);
// Tell persistence provider to associate the extended
// entity manager with the transaction.