Github user smurakozi commented on a diff in the pull request:
https://github.com/apache/spark/pull/19920#discussion_r155657473
--- Diff: core/src/main/scala/org/apache/spark/status/AppStatusStore.scala
---
@@ -17,16 +17,15 @@
package org.apache.spark.status
-import java.io.File
-import java.util.{Arrays, List => JList}
+import java.util.{List => JList}
import scala.collection.JavaConverters._
import org.apache.spark.{JobExecutionStatus, SparkConf}
import org.apache.spark.scheduler.SparkListener
import org.apache.spark.status.api.v1
import org.apache.spark.ui.scope._
-import org.apache.spark.util.{Distribution, Utils}
+import org.apache.spark.util.{Distribution}
--- End diff --
restored original
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