Considering Kotlin interop

[SoyNegro]

Maybe a bit silly from me but after reading the code at mica-mongo thought moving some small packages like that to Kotlin would be nice. Not only would make the code less verbose at points like here where you can change the whole else if block for a where block. But you can also take advantage of Kotlin null safety going from public Document convert(@Nullable ObjectNode source) { return source == null ? null : Document.parse(source.toString()); } to fun convert(ObjectNode source?):Document? = Document.parse(source?.toString())

[ChunMengLu]

I don't know much about Kotlin. As a basic component package, I feel that bundling a kotlin-stdlib is not friendly to java developers.