tx.commit();
assertNotNull (tx.getTransactionId());
assertNotNull (txMnger.getTransactionContext().getTransactionId());
assertEquals (txMnger.getTransactionContext().getTransactionId(), tx.getTransactionId());
tx.end();
assertNull(tx.getTransactionId());
assertNull(txMnger.getTransactionContext());
// create, begin, rollback
tx = txMnger.getNewTransaction();