diff --git a/yarn/alpha/src/main/scala/org/apache/spark/deploy/yarn/Client.scala b/yarn/alpha/src/main/scala/org/apache/spark/deploy/yarn/Client.scala index 5a20532315e596d4f98165b9e1b98615b8811bb6..5c7bca45412221de2bd5fe2b36d02dd231360ff5 100644 --- a/yarn/alpha/src/main/scala/org/apache/spark/deploy/yarn/Client.scala +++ b/yarn/alpha/src/main/scala/org/apache/spark/deploy/yarn/Client.scala @@ -122,7 +122,7 @@ private[spark] class Client( * ApplicationReport#getClientToken is renamed `getClientToAMToken` in the stable API. */ override def getClientToken(report: ApplicationReport): String = - Option(report.getClientToken).getOrElse("") + Option(report.getClientToken).map(_.toString).getOrElse("") } object Client {