Github user juliuszsompolski commented on a diff in the pull request: https://github.com/apache/spark/pull/19181#discussion_r141843914 --- Diff: core/src/test/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorterSuite.java --- @@ -19,10 +19,18 @@ import java.io.File; import java.io.IOException; +import java.io.PrintWriter; import java.util.Arrays; import java.util.LinkedList; import java.util.UUID; +import jodd.io.StringOutputStream; +import org.hamcrest.Description; +import org.hamcrest.Matcher; +import org.hamcrest.Matchers; +import org.hamcrest.TypeSafeMatcher; +import org.junit.Rule; +import org.junit.rules.ExpectedException; --- End diff -- nit: I think you don't use most of these imports anymore.
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