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Posted to issues@spark.apache.org by "Kousuke Saruta (JIRA)" <ji...@apache.org> on 2015/12/28 21:35:49 UTC
[jira] [Resolved] (SPARK-12424) The implementation of
ParamMap#filter is wrong.
[ https://issues.apache.org/jira/browse/SPARK-12424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kousuke Saruta resolved SPARK-12424.
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Resolution: Fixed
> The implementation of ParamMap#filter is wrong.
> -----------------------------------------------
>
> Key: SPARK-12424
> URL: https://issues.apache.org/jira/browse/SPARK-12424
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 1.6.0, 2.0.0
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
> Fix For: 1.6.1, 2.0.0
>
>
> ParamMap#filter uses `mutable.Map#filterKeys`. The return type of `filterKey` is collection.Map, not mutable.Map but the result is casted to mutable.Map using `asInstanceOf` so we get `ClassCastException`.
> Also, the return type of Map#filterKeys is not Serializable. It's the issue of Scala (https://issues.scala-lang.org/browse/SI-6654).
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