Over the last few months, it seems like we have selected Maven to be the “official” build system for Spark.
I realize that removing the sbt build may not be easy, but it might be a good idea to start looking into that. We had issues over the past few days where mvn builds were fine, while sbt was failing to resolve dependencies which were test-jars causing compilation of certain tests to fail. As a first step, I am wondering if it might be a good idea to change the PR builder to mvn and test PRs consistent with the way we test releases. I am not sure how technically feasible it is, but it would be a start to standardizing on one build system. Thanks, Hari
