[jira] [Created] (TINKERPOP-3140) emit() without repeat() throws an NPE

[Dave Bechberger (Jira)]

Dave Bechberger created TINKERPOP-3140:
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             Summary: emit() without repeat() throws an NPE
                 Key: TINKERPOP-3140
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-3140
             Project: TinkerPop
          Issue Type: Bug
    Affects Versions: 3.7.3
            Reporter: Dave Bechberger


I was testing a query and found that using `emit()` without a `repeat()` throws 
an NPE instead of a syntax error.


{code:java}
gremlin> g = TinkerGraph.open().traversal()
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.V()
gremlin> g.V().emit()
java.lang.NullPointerException
Type ':help' or ':h' for help. {code}



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