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by nevi-me 3147 days ago
From looking at the codebase, looks like there isn't any explicit "support Kotlin and Java", because most of the code's written in Kotlin.

Also, Kotlin and Java are meant to be well interoperable, so the Java support sort of comes by default. So it won't be the same as Scala + Java. I've been burnt by Apache Spark which has an awful Java API compared to Scala (and Python).

If someone has a better answer, I'd love the education :)