Github user mantovani commented on the issue:

    https://github.com/apache/spark/pull/20458
  
    Hello Marcel,
    
    This is an old bug and was fixed long time ago, I just runned the following
    example and got the correct result:
    DemoBug: rslt1 = 3 rslt2 = 3
    
    Doesn't make sense use Java traditional way "main(...)" just because 4
    years ago the "Scala approach" had a bug. Sometimes we can't use feature
    because of bugs, it's fine but we should move on when they are fixed.
    
    
    
    
    On Wed, Jan 31, 2018 at 4:20 PM, Marcelo Vanzin <[email protected]>
    wrote:
    
    > It's not just "will" work, it's working.
    >
    > https://issues.apache.org/jira/browse/SPARK-4170
    >
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    --
    Daniel de Oliveira Mantovani
    Perl Evangelist/Data Hacker
    +1 786 459 1341



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