authentication not working correctly with CouchbaseConnectionFactoryBuilder

The use of the CouchbaseConnectionFactoryBuilder like so yields a client that does not authenticate correctly.

CouchbaseConnectionFactoryBuilder cfb = new CouchbaseConnectionFactoryBuilder();
CouchbaseConnectionFactory cf = cfb.buildCouchbaseConnection(servers, "default_jOWPgw", "default_jOWPgw", "testing");
CouchbaseClient client = new CouchbaseClient(cf);