Map<String, String> props = Utils.newHashMap();
props.put("datanucleus.appengine.datastoreEnableXGTransactions", Boolean.FALSE.toString());
pmf = JDOHelper.getPersistenceManagerFactory(props, getPersistenceManagerFactoryName().name());
pm = pmf.getPersistenceManager();
DatastoreManager storeMgr = (DatastoreManager) getExecutionContext().getStoreManager();
TransactionOptions txnOpts = storeMgr.getDefaultDatastoreTransactionOptions();
assertFalse(txnOpts.isXG());
}