Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/3670#discussion_r23736659
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -513,13 +516,44 @@ private[spark] object Utils extends Logging {
Files.move(sourceFile, destFile)
--- End diff --
It's not clear from the docs, but does this work for directories? Could you
add a unit test? (It doesn't seem like this is covered for directories by the
current ones, after a quick look.)
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