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https://issues.apache.org/jira/browse/SPARK-40141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean R. Owen resolved SPARK-40141.
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Resolution: Won't Fix
> Task listener overloads no longer needed with JDK 8+
> ----------------------------------------------------
>
> Key: SPARK-40141
> URL: https://issues.apache.org/jira/browse/SPARK-40141
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.3.0
> Reporter: Ryan Johnson
> Priority: Major
>
> TaskContext defines methods for registering completion and failure listeners,
> and the respective listener types qualify as functional interfaces in JDK 8+.
> This leads to awkward ambiguous overload errors with the overload of each
> function, that takes a function directly instead of a listener. Now that JDK
> 8 is the minimum allowed, we can remove the unnecessary overloads, which not
> only simplifies the code, but also removes a source of frustration since it
> can be nearly impossible to predict when an ambiguous overload might be
> triggered.
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