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From "Joseph K. Bradley (JIRA)" <>
Subject [jira] [Resolved] (SPARK-9661) ML 1.5 QA: API: Java compatibility, docs
Date Fri, 14 Aug 2015 17:25:46 GMT


Joseph K. Bradley resolved SPARK-9661.
    Resolution: Fixed

Issue resolved by pull request 8190

> ML 1.5 QA: API: Java compatibility, docs
> ----------------------------------------
>                 Key: SPARK-9661
>                 URL:
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Documentation, Java API, ML, MLlib
>            Reporter: Joseph K. Bradley
>            Assignee: Manoj Kumar
>             Fix For: 1.5.0
> Check Java compatibility for MLlib for this release.
> Checking compatibility means:
> * comparing with the Scala doc
> * verifying that Java docs are not messed up by Scala type incompatibilities.  Some items
to look out for are:
> ** Check for generic "Object" types where Java cannot understand complex Scala types.
> *** *Note*: The Java docs do not always match the bytecode. If you find a problem, please
verify it using {{javap}}.
> ** Check Scala objects (especially with nesting!) carefully.
> ** Check for uses of Scala and Java enumerations, which can show up oddly in the other
language's doc.
> * If needed for complex issues, create small Java unit tests which execute each method.
 (The correctness can be checked in Scala.)
> If you find issues, please comment here, or for larger items, create separate JIRAs and
link here.
> Note that we should not break APIs from previous releases.  So if you find a problem,
check if it was introduced in this Spark release (in which case we can fix it) or in a previous
one (in which case we can create a java-friendly version of the API).

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