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### What changes were proposed in this pull request? Invocations like `sc.parallelize(Array((1,2)))` cause a compile error in 2.13, like: ``` [ERROR] [Error] /Users/seanowen/Documents/spark_2.13/core/src/test/scala/org/apache/spark/ShuffleSuite.scala:47: overloaded method value apply with alternatives: (x: Unit,xs: Unit*)Array[Unit] <and> (x: Double,xs: Double*)Array[Double] <and> (x: Float,xs: Float*)Array[Float] <and> (x: Long,xs: Long*)Array[Long] <and> (x: Int,xs: Int*)Array[Int] <and> (x: Char,xs: Char*)Array[Char] <and> (x: Short,xs: Short*)Array[Short] <and> (x: Byte,xs: Byte*)Array[Byte] <and> (x: Boolean,xs: Boolean*)Array[Boolean] cannot be applied to ((Int, Int), (Int, Int), (Int, Int), (Int, Int)) ``` Using a `Seq` instead appears to resolve it, and is effectively equivalent. ### Why are the changes needed? To better cross-build for 2.13. ### Does this PR introduce any user-facing change? None. ### How was this patch tested? Existing tests. Closes #26062 from srowen/SPARK-29401. Authored-by: Sean Owen <sean.owen@databricks.com> Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
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