spark-core depends on a metrics library, and that library was rejected:
https://dev.eclipse.org/ipzilla/show_bug.cgi?id=8444
"""
We have heard back from the third party project concerning its provenance and
licensing.
Unfortunately, the project has over 120 contributors with no contribution
mechanism in place. As a result, we are unable to resolve provenance
satisfactorily for Eclipse distribution.
We also were able to ascertain the original author (lead) is no longer
involved/active in the project.
I'm sorry not to have better news.
Regards,
Sharon
"""
This presents itself as a pretty big problem for us, if we are to be distributed with spark. But, it's less of a problem if we don't intend to package spark at all...in this case it would need to be a "works with" dependency. In order to compile the geotrellis-spark subproject, someone would need to pull spark-core down from maven. But usually, when we build up a "fat jar" that would run against a Spark system, we don't package up spark-core...that is actually provided by the spark system you are running the code against.
spark-core has a lot of dependencies. If we could at least get the stamp of approval of having spark and all it's dependencies be ok for "works with", then we can work with that. Otherwise, since spark is at the core of what we are doing, I'm not sure how to proceed.
Best,
Rob