OK, I repeated the experiment and got "0 1" again, so I expand on what I did.

I use the janusgraph-0.6.2 full binary distribution and start cassandra and elasticsearch with:

$ bin/janusgraph.sh start

I leave the running Janusgraph Server unused and start a JanusGraph instance in the gremlin console with:
graph = JanusGraphFactory.open('conf/janusgraph-cql-es.properties')

Note that your code lines show a private properties file.

Best wishes,   Marc