really fixed MiMa issue

Author: brkyvz

project/MimaExcludes.scala

@@ -110,14 +110,8 @@ object MimaExcludes {
             ProblemFilters.exclude[IncompatibleMethTypeProblem](
               "org.apache.spark.mllib.recommendation.ALS.org$apache$spark$mllib$recommendation$ALS$^dateFeatures")
           ) ++
-          Seq( // Ignore new functions added to trait `Matrix`. They are sealed traits now.
-            ProblemFilters.exclude[MissingMethodProblem](
-              "org.apache.spark.mllib.linalg.Matrix.multiply"),
-            ProblemFilters.exclude[MissingMethodProblem](
-              "org.apache.spark.mllib.linalg.Matrix.transposeMultiply"),
-            ProblemFilters.exclude[MissingMethodProblem](
-              "org.apache.spark.mllib.linalg.Matrix.copy")
-          ) ++
+          MimaBuild.excludeSparkClass("mllib.linalg.Matrix") ++
+          MimaBuild.excludeSparkClass("mllib.linalg.Vector") ++
           MimaBuild.excludeSparkClass("mllib.linalg.distributed.ColumnStatisticsAggregator") ++
           MimaBuild.excludeSparkClass("rdd.ZippedRDD") ++
           MimaBuild.excludeSparkClass("rdd.ZippedPartition") ++