gaborgsomogyi commented on a change in pull request #23499: [SPARK-26254][CORE] 
Extract Hive + Kafka dependencies from Core.
URL: https://github.com/apache/spark/pull/23499#discussion_r249406329
 
 

 ##########
 File path: 
core/src/main/scala/org/apache/spark/deploy/security/HadoopDelegationTokenProvider.scala
 ##########
 @@ -43,11 +44,13 @@ private[spark] trait HadoopDelegationTokenProvider {
    * Obtain delegation tokens for this service and get the time of the next 
renewal.
    * @param hadoopConf Configuration of current Hadoop Compatible system.
    * @param creds Credentials to add tokens and security keys to.
+   * @param fileSystems List of file systems for which to obtain delegation 
tokens.
    * @return If the returned tokens are renewable and can be renewed, return 
the time of the next
    *         renewal, otherwise None should be returned.
    */
   def obtainDelegationTokens(
     hadoopConf: Configuration,
     sparkConf: SparkConf,
+    fileSystems: Set[FileSystem],
 
 Review comment:
   Felt the same when changed but didn't have good solution. Good suggestion, 
will file a jira and resolve it.

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