srowen commented on code in PR #37345:
URL: https://github.com/apache/spark/pull/37345#discussion_r933874937
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core/src/main/scala/org/apache/spark/deploy/SparkHadoopUtil.scala:
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@@ -23,7 +23,6 @@ import java.text.DateFormat
import java.util.{Arrays, Date, Locale}
import scala.collection.JavaConverters._
-import scala.collection.immutable.Map
Review Comment:
Hm, I think the problem is that it compiles both ways, but means different
things. I do think we want the explicit import of Map for Scala 2.13 so that it
does not mean scala.collection.Map in either build.
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