LuciferYang commented on a change in pull request #30351:
URL: https://github.com/apache/spark/pull/30351#discussion_r527364852
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File path: pom.xml
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@@ -164,6 +164,7 @@
<commons.collections.version>3.2.2</commons.collections.version>
<scala.version>2.12.10</scala.version>
<scala.binary.version>2.12</scala.binary.version>
+ <scalac.arg.unused-imports>-Ywarn-unused-import</scalac.arg.unused-imports>
Review comment:
> If it's easy to make both Maven and SBT build throw an error, it's
fine. If that's difficult, let's move it to SparkBuild.scala, and make it SBT
specific.
OK ~ I can add a followup to do this change, I'm not sure how Maven users
can self check before submitting code ....
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