Hey @ScrapCodes - now that we have a better understand of what is going on, let's do the following. For things where the class is package private let's exclude the entire class and then explain why. So here it could be:

    // The below classes are package private but not ignored correctly by MIMA
    exclude[MissingMethodProblem]("org.apache.spark.util.collection.ExternalAppendOnlyMap")