Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/3464
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GitHub user ijuma opened a pull request:
https://github.com/apache/kafka/pull/3464
MINOR: Enable a number of xlint scalac warnings
Update the code where possible to fix the warnings. The unused
warning introduced in Scala 2.12 is quite handy and provides
a reason to compile
