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https://issues.apache.org/jira/browse/TINKERPOP-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17423948#comment-17423948
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ASF GitHub Bot commented on TINKERPOP-2620:
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krlawrence commented on pull request #1483:
URL: https://github.com/apache/tinkerpop/pull/1483#issuecomment-933492430
Thanks for cleaning these up. Always nice to get rid of bad user facing
exceptions. VOTE +1
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> Clean up NullPointerExceptions related to null arguments on property related
> steps
> ----------------------------------------------------------------------------------
>
> Key: TINKERPOP-2620
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2620
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.5.1
> Reporter: Stephen Mallette
> Priority: Minor
>
> Probably needs more examination but here are a few examples:
> {code}
> gremlin> g.V().valueMap('name','age')
> ==>[name:[marko],age:[29]]
> ==>[name:[vadas],age:[27]]
> ==>[name:[lop]]
> ==>[name:[josh],age:[32]]
> ==>[name:[ripple]]
> ==>[name:[peter],age:[35]]
> gremlin> g.V().valueMap('name','age',null)
> ==>[name:[marko],age:[29]]
> ==>[name:[vadas],age:[27]]
> java.lang.NullPointerException
> Type ':help' or ':h' for help.
> Display stack trace? [yN]n
> gremlin> g.V().properties('name','age',null)
> ==>vp[name->marko]
> ==>vp[age->29]
> ==>vp[name->vadas]
> ==>vp[age->27]
> java.lang.NullPointerException
> Type ':help' or ':h' for help.
> Display stack trace? [yN]n
> gremlin> g.V().values('name','age',null)
> ==>marko
> ==>29
> ==>vadas
> ==>27
> java.lang.NullPointerException
> Type ':help' or ':h' for help.
> Display stack trace? [yN]
> gremlin> g.V().elementMap('name','age',null)
> ==>[id:1,label:person,name:marko,age:29]
> ==>[id:2,label:person,name:vadas,age:27]
> java.lang.NullPointerException
> Type ':help' or ':h' for help.
> Display stack trace? [yN]
> {code}
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