[jira] [Commented] (TINKERPOP-2620) Clean up NullPointerExceptions related to null arguments on property related steps

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TINKERPOP-2620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17423066#comment-17423066 ] 

ASF GitHub Bot commented on TINKERPOP-2620:
-------------------------------------------

spmallette opened a new pull request #1483:
URL: https://github.com/apache/tinkerpop/pull/1483


   https://issues.apache.org/jira/browse/TINKERPOP-2620
   
   Resolved some troubles related to elementMap(), valueMap(), values() and properties(). See the JIRA for examples.
   
   Builds with `mvn clean install`


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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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