Details
Description
Should update the JPMML dependency to the latest release version 1.2.15, which is source (and possibly binary-) compatible with the current version 1.2.7.
There's a competing Spark ML Pipelines to PMML converter in the works called JPMML-SparkML (https://github.com/jpmml/jpmml-sparkml), which depends on JPMML 1.2.15. The unification of JPMML dependency version between Spark MLlib and JPMML-SparkML should make it easier to switch between implementations.
As a bonus, it is possible to simplify JPMML dependency declaration by omitting redundant exclusions.
Will provide a PR shortly.