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https://issues.apache.org/jira/browse/SPARK-9613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660535#comment-14660535
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Josh Rosen commented on SPARK-9613:
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Even though it's technically a little late to be doing this, it might be worth
even considering this for 1.6 if we find that JavaConversions is being used in
performance critical parts of MLLib or SQL. A very low priority, though.
> Ban use of JavaConversions and migrate all existing uses to JavaConverters
> --------------------------------------------------------------------------
>
> Key: SPARK-9613
> URL: https://issues.apache.org/jira/browse/SPARK-9613
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Josh Rosen
>
> Spark's style checker should ban the use of Scala's JavaConversions, which
> provides implicit conversions between Java and Scala collections types.
> Instead, we should be performing these conversions explicitly using
> JavaConverters (or forgoing the conversions altogether if they're occurring
> inside of performance-critical code).
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