txnBatch.beginNextTransaction();
Assert.assertEquals(TransactionBatch.TxnState.OPEN, txnBatch.getCurrentTransactionState());
txnBatch.write("50,Kiev".getBytes());
txnBatch.write("51,St. Petersburg".getBytes());
txnBatch.write("44,Boston".getBytes());
txnBatch.commit();
txnBatch.beginNextTransaction();
txnBatch.write("52,Tel Aviv".getBytes());
txnBatch.write("53,Atlantis".getBytes());
txnBatch.write("53,Boston".getBytes());