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Posted to issues@spark.apache.org by "Ryan Johnson (Jira)" <ji...@apache.org> on 2022/08/18 23:00:00 UTC

[jira] [Created] (SPARK-40141) Task listener overloads no longer needed with JDK 8+

Ryan Johnson created SPARK-40141:
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             Summary: 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


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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