diff --git a/kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala b/kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala
index d37f38d6d30..f79e01e6cfa 100644
--- a/kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala
+++ b/kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala
@@ -18,10 +18,13 @@
 package org.apache.kyuubi.session
 
 import java.util.concurrent.{Semaphore, TimeUnit}
+
 import scala.collection.JavaConverters._
+
 import com.codahale.metrics.MetricRegistry
 import com.google.common.annotations.VisibleForTesting
 import org.apache.hive.service.rpc.thrift.TProtocolVersion
+
 import org.apache.kyuubi.KyuubiSQLException
 import org.apache.kyuubi.client.api.v1.dto.{Batch, BatchRequest}
 import org.apache.kyuubi.client.util.BatchUtils.KYUUBI_BATCH_ID_KEY