Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/442#issuecomment-40879990
I doubt Hotspot can remove this allocation, but am not sure. It would have
to do a couple things -- inline the call to 2 other constructors, realize
there's no threading issue in the constructor, realize the dead store. I think
it's worth avoiding manually here.
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