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From "Joseph K. Bradley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-14814) CLONE - ML 2.0 QA: API: Java compatibility, docs
Date Thu, 21 Apr 2016 19:37:26 GMT

     [ https://issues.apache.org/jira/browse/SPARK-14814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joseph K. Bradley updated SPARK-14814:
--------------------------------------
    Summary: CLONE - ML 2.0 QA: API: Java compatibility, docs  (was: CLONE - ML 1.6 QA: API:
Java compatibility, docs)

> CLONE - ML 2.0 QA: API: Java compatibility, docs
> ------------------------------------------------
>
>                 Key: SPARK-14814
>                 URL: https://issues.apache.org/jira/browse/SPARK-14814
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Documentation, Java API, ML, MLlib
>            Reporter: Joseph K. Bradley
>             Fix For: 1.6.0, 2.0.0
>
>
> 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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