Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/448#issuecomment-42249441
Yeah I agree they look the same. I guess this.type translates to the the
current class and any other specialization for child classes is done by scala
magic.
Other than the minor comments about removing unneeded code and avoiding too
much scala in the java api I think this is about ready to merge.
Thanks again for investigating this in such detail! I've personally been
bumping into this issue quite a lot.
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