Github user smurakozi commented on a diff in the pull request:
https://github.com/apache/spark/pull/20121#discussion_r162058792
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/classification/OneVsRestSuite.scala ---
@@ -17,14 +17,13 @@
package org.apache.spark.ml.classification
-import org.apache.spark.SparkFunSuite
import org.apache.spark.ml.attribute.NominalAttribute
import org.apache.spark.ml.classification.LogisticRegressionSuite._
import org.apache.spark.ml.feature.LabeledPoint
import org.apache.spark.ml.feature.StringIndexer
-import org.apache.spark.ml.linalg.Vectors
+import org.apache.spark.ml.linalg.{Vector, Vectors}
import org.apache.spark.ml.param.{ParamMap, ParamsSuite}
-import org.apache.spark.ml.util.{DefaultReadWriteTest, MetadataUtils,
MLTestingUtils}
+import org.apache.spark.ml.util.{DefaultReadWriteTest, MetadataUtils,
MLTest, MLTestingUtils}
--- End diff --
nit: import org.apache.spark.mllib.util.MLlibTestSparkContext
is unused at line 32
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