Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/4135#discussion_r26726784
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/receiver/ReceiverSupervisor.scala
---
@@ -23,9 +23,9 @@ import scala.collection.mutable.ArrayBuffer
import org.apache.spark.{Logging, SparkConf}
import org.apache.spark.storage.StreamBlockId
-import java.util.concurrent.CountDownLatch
import scala.concurrent._
import ExecutionContext.Implicits.global
+import java.util.concurrent.CountDownLatch
--- End diff --
We don't actually have to modify this file as part of this patch, though,
so it'd be fine to just roll it back to what's in master.
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