Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/2432#issuecomment-57097830
It looks like this most recent test failure is due to Mima:
```
[info] spark-core: found 1 potential binary incompatibilities (filtered 223)
[error] * synthetic method
org$apache$spark$SparkContext$$createTaskScheduler(org.apache.spark.SparkContext,java.lang.String)org.apache.spark.scheduler.TaskScheduler
in object org.apache.spark.SparkContext does not have a correspondent in new
version
[error] filter with:
ProblemFilters.exclude[MissingMethodProblem]("org.apache.spark.SparkContext.org$apache$spark$SparkContext$$createTaskScheduler")
```
Here's the v1.1.0 definition of `SparkContext.createTaskScheduler` that
MiMa is comparing against:
https://github.com/apache/spark/blob/v1.1.0/core/src/main/scala/org/apache/spark/SparkContext.scala#L1478
This MiMa error is confusing because this is a `private` method that's only
called from SparkContext. It's also called from
`SparkContextSchedulerCreationSuite` using reflection. Unless anyone has an
objection, I think we should add the
```scala
ProblemFilters.exclude[MissingMethodProblem]("org.apache.spark.SparkContext.org$apache$spark$SparkContext$$createTaskScheduler")
```
exclusion, since this method is `private`.
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