Github user Leemoonsoo commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/702#issuecomment-181140583 Thanks for the contribution. I think `spark/lib/rscala_2.10-1.0.6.jar` shouldn't be included in the source tree. Can this be downloaded on build time? And `rscala_2.10-1.0.6.jar` looks like available on BSD license according to [here](https://cran.r-project.org/web/packages/rscala/index.html). Then, you'll need add license of the library into `zeppelin-distribution/src/bin_license/LICENSE`, and add [LICENSE](https://cran.r-project.org/web/packages/rscala/LICENSE) file under `zeppelin-distribution/src/bin_license/licenses` directory. Most interpreters include at least one unittest or integration test. So I suggest have an test. I think R interpreter related source file need to be excluded for profile spark-1.3, spark-1.2, spark-1.1, so CI doesn't fail for those profile. I think maven capable of doing it.
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