Just to follow up -- those are actually in a Palantir repo, not Central. Deploying to Central would be uncourteous, but this approach is legitimate and how it has to work for vendors to release distros of Spark etc.

On Tue, Jan 9, 2018 at 11:43 AM Nan Zhu <zhunanmcgill@gmail.com> wrote:
Hi, all

Out of curious, I just found a bunch of Palantir release under org.apache.spark in maven central (https://mvnrepository.com/artifact/org.apache.spark/spark-core_2.11)?

Is it on purpose?