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https://issues.apache.org/jira/browse/TINKERPOP-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15242819#comment-15242819
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Peter Storm commented on TINKERPOP-1262:
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How can I obtain a stack trace from the server? It isn't included in the log
file and the driver only gets the error code 500 without any additional
information.
> g.V(id0).repeat(both()).times(1) works only locally
> ---------------------------------------------------
>
> Key: TINKERPOP-1262
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1262
> Project: TinkerPop
> Issue Type: Bug
> Components: server
> Affects Versions: 3.0.1-incubating
> Environment: Titan 1.0.0 with Cassandra backend, Gremlin Server,
> TinkerPop 3.0.1
> Reporter: Peter Storm
> Priority: Minor
>
> I wanted to include a query in my application that retrieves all paths
> between two vertices up to a certain length:
> g.V(p0).repeat(dedup().both()).times(2).emit(hasId(p1)).hasId(p1).path()
> This works in the Gremlin Console, but throws a NullPointerException when I
> send it to the Gremlin Server from my application. I could reduce the query
> to:
> g.V(p0).repeat(both()).times(1)
> which still throws the NullPointerException. However, the queries
> g.V(p0).both() and g.V(p0).repeat(coin(1.0)).times(1) both work fine. So it
> seems to be a problem with the combination of the two steps both() and
> repeat().
> I tried the problematic query in the Gremlin Console with TinkerGraph and
> Titan without any problems. Here is my environment:
> Titan 1.0.0 with Cassandra back end
> TinkerPop 3.0.1 (bundled with Titan)
> The thread in the Google group for reference:
> https://groups.google.com/forum/#!topic/gremlin-users/4SrSEkDS0GQ
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