Github user jacek-lewandowski commented on a diff in the pull request:
https://github.com/apache/spark/pull/3571#discussion_r23417469
--- Diff:
core/src/main/scala/org/apache/spark/deploy/ApplicationDescription.scala ---
@@ -28,5 +28,14 @@ private[spark] class ApplicationDescription(
val user = System.getProperty("user.name", "<unknown>")
+ def copy(
--- End diff --
Well... I was wondering why it isn't a case class, but it has a mutable
field. I hope it will become a case class at some point, and then the copy
method will be just removed, but I would not mix here such refactoring.
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