diff --git a/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala b/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
index cc4339c69196d..2c394cec3eca1 100644
--- a/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
+++ b/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
@@ -37,6 +37,7 @@ import org.apache.hadoop.yarn.api.records._
 import org.apache.hadoop.yarn.conf.YarnConfiguration
 import org.apache.hadoop.yarn.exceptions.ApplicationAttemptNotFoundException
 import org.apache.hadoop.yarn.util.Records
+
 import org.apache.spark.{SparkStopAMRetryException, _}
 import org.apache.spark.deploy.{ExecutorFailureTracker, SparkHadoopUtil}
 import org.apache.spark.deploy.history.HistoryServer