Github user chtyim commented on a diff in the pull request: https://github.com/apache/spark/pull/12318#discussion_r59317619 --- Diff: core/src/main/scala/org/apache/spark/HttpServer.scala --- @@ -155,6 +158,7 @@ private[spark] class HttpServer( throw new ServerStateException("Server is already stopped") } else { server.stop() + condOpt(server.getThreadPool) { case x: LifeCycle => x }.foreach(_.stop()) --- End diff -- Yes it is effectively doing the same thing, but using the `condOpt` from `PartitialFunction` instead. I can change it to your version if it is more preferable.
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