HyukjinKwon commented on a change in pull request #30351:
URL: https://github.com/apache/spark/pull/30351#discussion_r527360926
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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:
Shall we just move it to `SparkBuild.scala` and let Maven doesn't care
about that?
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