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https://issues.apache.org/jira/browse/SPARK-13121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu updated SPARK-13121:
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Fix Version/s: 1.6.1
> java mapWithState mishandles scala Option
> -----------------------------------------
>
> Key: SPARK-13121
> URL: https://issues.apache.org/jira/browse/SPARK-13121
> Project: Spark
> Issue Type: Bug
> Components: Java API, Streaming
> Affects Versions: 1.6.0
> Reporter: Gabriele Nizzoli
> Priority: Critical
> Fix For: 1.6.1
>
>
> in Spark Streaming, java mapWithState that uses Function3 has a bug in the
> convertion from a scala Option to a java Optional. In the conversion, the
> code in `StateSpec.scala`, line 222 is
> `Optional.fromNullable(v.get)`. This fails if `v`, an `Option`, is `None`,
> better to use `JavaUtils.optionToOptional(v)` instead.
> Workaround is to use the Function4 call to mapWithState. This call has the
> right conversion.
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