Github user mateiz commented on the pull request:
https://github.com/apache/spark/pull/577#issuecomment-42248788
It's a good idea to abstract out try/finally long-term, but for now we can
use finally's like here. There are some nice ways to implement automatic
closing in Scala:
http://stackoverflow.com/questions/15523192/scala-disposable-resource-pattern
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