Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/916#discussion_r13209832
--- Diff: core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala ---
@@ -22,6 +22,7 @@ import scala.reflect.ClassTag
import org.scalatest.FunSuite
+import org.apache.commons.math3.distribution.PoissonDistribution
--- End diff --
add an empty line after this line to organize imports into groups
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