Ted Wilmes created TINKERPOP-1468:
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Summary: GraphTraversal.optional throws a NPE if no traversal is
provided
Key: TINKERPOP-1468
URL: https://issues.apache.org/jira/browse/TINKERPOP-1468
Project: TinkerPop
Issue Type: Bug
Components: process
Affects Versions: 3.2.2
Reporter: Ted Wilmes
{{GraphTraversal.optional}} throws a NPE if no traversal is provided. We
should probably throw a friendlier exception with instructions to provide a
traversal as an argument.
{code}
gremlin> g.V().optional()
java.lang.NullPointerException
Type ':help' or ':h' for help.
Display stack trace? [yN]y
java.lang.NullPointerException
at
org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal.optional(GraphTraversal.java:1316)
{code}
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