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https://issues.apache.org/jira/browse/SPARK-21300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-21300:
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Assignee: Apache Spark
> ExternalMapToCatalyst should null-check map key prior to converting to
> internal value.
> --------------------------------------------------------------------------------------
>
> Key: SPARK-21300
> URL: https://issues.apache.org/jira/browse/SPARK-21300
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Takuya Ueshin
> Assignee: Apache Spark
> Priority: Minor
>
> {{ExternalMapToCatalyst}} should null-check map key prior to converting to
> internal value to throw an appropriate Exception instead of something like
> NPE.
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