Github user mattallenuk commented on the issue:
https://github.com/apache/tinkerpop/pull/922
I've just tried it not parsing the bindings to strings and get the same
issue. So I'm wondering now if I do need to parse the parameters or if I'm just
calling the addProperty function wrong?
`[RequestMessage{, requestId=27ad0188-8b5a-40e0-bf52-b158a1e92507,
op='eval', processor='', args={gremlin=g.V(1).property(card, nm, val),
aliases={g=gmodern}, bindings={card={typeName=Cardinality, elementName=set},
nm=test, val=12}, language=gremlin-groovy, accept=application/json}}].`
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