Custom Serialization should work on all levels and allow "super- generics"?

Custom Serialization currently doesn't seem to trigger for anything other than the initial object passed into "toJson", should this be the case? I want to serialize every instance of X in a specific way, but this doesn't seem possible at the moment. This could be a new property "DEEP_CUSTOM_SERIALIZATION"

Also should JsonbSerializer\ allow me to add custom serialization for every object passed into "toJson" ?

Start by reviewing the issue's questions about custom serialization of nested instances and JsonbSerializer. Determine the intended behavior and API design for deep custom serialization, then document a concrete specification and acceptance criteria before implementation.

Written by the indexing model from the issue text.