Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/4463#discussion_r131120916
--- Diff:
flink-runtime/src/main/scala/org/apache/flink/runtime/jobmanager/JobManager.scala
---
@@ -21,7 +21,7 @@ package org.apache.flink.runtime.jobmanager
import java.io.IOException
import java.net._
import java.util.UUID
-import java.util.concurrent.{Future => JavaFuture, _}
+import java.util.concurrent.{TimeUnit, Future => _, TimeoutException => _,
_}
--- End diff --
Exclude `Future` from being imported.
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