Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/4109#discussion_r23268078
--- Diff: mllib/src/main/scala/org/apache/spark/mllib/linalg/Matrices.scala
---
@@ -17,7 +17,7 @@
package org.apache.spark.mllib.linalg
-import java.util.{Arrays, Random}
+import java.util.{Arrays => jArrays, Random}
--- End diff --
Any reason to change this? Scala doesn't have `Arrays`. If we want to
emphasize this is from Java, we can do `import java.{util => ju}` and use
`ju.Arrays` in the code. This is recommended by @srowen
Anyway, it is strange to have a class name alias start with a lowercase
letter.
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