Hey folks, I was wondering, what mechanism in Kotlin allows that

java.util.LinkedHashMap<Int,Int>

somehow implements

kotlin.collections.Map<Int,Int>

? Is there scala-style implicit conversion / wrapping going on?

val lhm: kotlin.collections.Map<Int, Int> = java.util.LinkedHashMap()

I can tell you no wrapping is involved.

It's "compiler magic": https://kotlinlang.org/docs/reference/java-interop.html#mapped-types

damn that is brilliant, that's much more integrated into the host language than the scala collections are