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Lukas Rytz commented on SPARK-14220: ------------------------------------ This is a limitation in overloading resolution that might be fixed in some future release, I filed a Scala ticket [https://github.com/scala/bug/issues/11016.] In the meantime, the method `addTaskCompletionListener` could be changed from def addTaskCompletionListener(f: (TaskContext) => Unit): TaskContext to def addTaskCompletionListener[U](f: (TaskContext) => U): TaskContext This is a binary compatible change, and it should be source compatible too. > Build and test Spark against Scala 2.12 > --------------------------------------- > > Key: SPARK-14220 > URL: https://issues.apache.org/jira/browse/SPARK-14220 > Project: Spark > Issue Type: Umbrella > Components: Build, Project Infra > Affects Versions: 2.1.0 > Reporter: Josh Rosen > Priority: Blocker > > This umbrella JIRA tracks the requirements for building and testing Spark > against the current Scala 2.12 milestone. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org