Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/23102#discussion_r236341207
--- Diff: core/src/main/scala/org/apache/spark/deploy/DependencyUtils.scala
---
@@ -19,11 +19,11 @@ package org.apache.spark.deploy
import java.io.File
import java.net.URI
+import java.util.regex.Pattern
import org.apache.commons.lang3.StringUtils
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs.{FileSystem, Path}
-
--- End diff --
Previous import style was correct. It complied project's style
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