Check kotlin classes, types with jackson.
Check kotlin classes and types with jackson and how it serializes/deserializes them.
Fake, Check classes implements IPolymorphic interface.
Such model was selected to demonstrate how complex polymorphic deserialization works.
Samples of using: List<IPolymorphic>, which in fact can be Fake or Check items.
Simple JacksonUnitTest verifies correct work of serializing/deserializing.