It's not that it won't work; it's that the idioms Scala is written with are different than Java, so having Java-like code mixed in messes up the coherence of th

It's not that it won't work; it's that the idioms Scala is written with are different than Java, so having Java-like code mixed in messes up the coherence of the project. Not such an obstacle that you wouldn't ever do it, but enough that you'd prefer one designed for Scala if it is available.