Hi Albert,

I tried with the GraphOfTheGods with janusgraph-0.5.3:

gremlin> gremlin> g.V().has(label, without('god')).has(label, without('location')).values('name')
14:17:41 WARN  org.janusgraph.graphdb.transaction.StandardJanusGraphTx  - Query requires iterating over all vertices [(~label <> null AND ~label <> god AND ~label <> location)]. For better performance, use indexes
==>nemean
==>hercules
==>saturn
==>cerberus
==>alcmene
==>hydra

gremlin> g.V().has(label, eq('god')).has(label, eq(null))14:22:31 WARN  org.janusgraph.graphdb.transaction.StandardJanusGraphTx  - Query requires iterating over all vertices [(~label = god AND ~label = null)]. For better performance, use indexes
gremlin>

So, I guess you did not mean to say that these traversals should fail.

If it has anything to do with the way you use the PredicateCondition class, can you give a code example where you just instantiate two PredicateConditions and have an equal() call fail?

Best wishes,    Marc