Uzaygezen (which is a dependency of geotrellis-spark, as seen here) depends on log4j directly, instead of depending on the slf4j logging interface and allowing users to bring in the logger of their choice.

This doesn't play nice with client applications that bring in geotrellis-spark, but want to use something like logback-classic to do their logging.

This issue is about investigating ways to get around this issue, either by excluding that dependency in a way that it will not be included as a transitive dependency to geotrellis-spark, or some other method.