Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/1463#issuecomment-49341909
@ScrapCodes could you explain a bit more how this fixes SPARK-2497. If I
look at the original false-positive the issue reported was not with a companion
class. It was actually in a method of the object itself. Also the method was
annotated, not the object.
```
Source:
https://github.com/apache/spark/pull/886/files#diff-0f907b47af6261abe00eb31097a9493bR41
Error:
[error] * method calculate(Double,Double)Double in object
org.apache.spark.mllib.tree.impurity.Gini's type has changed; was
(Double,Double)Double, is now: (Array[Double],Double)Double
[error] filter with:
ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.spark.mllib.tree.impurity.Gini.calculate")
```
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