LuciferYang commented on code in PR #37345:
URL: https://github.com/apache/spark/pull/37345#discussion_r933877313
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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:
However, I think it is also good to explicitly imports `immutable.Map[K, V]`
and `immutable.Set[A]`, which makes it more clearer
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