[jira] [Created] (SPARK-12604) Java countByKey, zipWith*, etc methods return Scala Long not Java

["Sean Owen (JIRA)" <ji...@apache.org>]

Sean Owen created SPARK-12604:
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             Summary: Java countByKey, zipWith*, etc methods return Scala Long not Java
                 Key: SPARK-12604
                 URL: https://issues.apache.org/jira/browse/SPARK-12604
             Project: Spark
          Issue Type: Sub-task
          Components: Java API, Spark Core
    Affects Versions: 1.6.0
            Reporter: Sean Owen
            Assignee: Sean Owen
            Priority: Minor


Another minor API problem I noticed while digging around. The following Java API methods return a Long as part of their signature, but it's a {{scala.Long}}, not a {{java.lang.Long}}:

* zipWithIndex
* zipWithUniqueId
* countByKey
* countAsync

Other similar methods correctly return a Java Long, like countByValue, and the whole Java streaming API.

Of course, changing this is probably the right thing to do, but also is an API change. I think it's worth fixing up 



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