Github user holdenk commented on the pull request: https://github.com/apache/spark/pull/12143#issuecomment-205978731 Awesome :) A few minor things found while reviewing: One thing I noticed while looking at the differences between the code we are deleting and the code we are keeping is that some of the code we are deleting had a some useful javadoc on how to run the example and where it was from (e.g. `JavaTrainValidationSplitExample.java`) we might want to copy over. Also I think the reference for what `JavaSimpleTextClassificationPipeline.java` duplicated is pointing to the wrong file since it doesn't do the cross validator stuff (although it looks like the cross validator is a super set so maybe its ok to kill anyways - but if we do kill it we should probably rename the new to include something like "WithTextClassificationPipeline" one so people looking for a sample text pipeline can still find it)
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