Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/19988#discussion_r157204320 --- Diff: mllib/src/main/scala/org/apache/spark/ml/optim/NormalEquationSolver.scala --- @@ -17,10 +17,10 @@ package org.apache.spark.ml.optim import scala.collection.mutable - import breeze.linalg.{DenseVector => BDV} import breeze.optimize.{CachedDiffFunction, DiffFunction, LBFGS => BreezeLBFGS, OWLQN => BreezeOWLQN} - +import org.apache.spark.SparkException --- End diff -- This will fail style checks. Restore the empty lines between groups.
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