Example for Java's

Date

still does not work, it

Can't locate default serializer for class java.util.Date

I do not understand how serializers are being searched in case when a type inside a class, just creating [companion] object near

MyData

, or inside it, does not work

My bad... I was too impatient to read the whole doc. The problem has been solved with custom

SerialContext

It would be nice to find how to deal with default serial context (if possible)