Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/4067#discussion_r23284162
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -41,7 +41,7 @@ import org.apache.spark._
import org.apache.spark.annotation.DeveloperApi
import org.apache.spark.broadcast.Broadcast
import org.apache.spark.deploy.SparkHadoopUtil
-import org.apache.spark.executor.{DataReadMethod, InputMetrics}
+import org.apache.spark.executor.{DataReadMethod}
--- End diff --
Take out curly braces
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