Jackson's com.fasterxml.jackson.databind.ser.std.StdJdkSerializers adds a number of serializers as classes. These classes are then lazily instantiated via reflection in BasicSerializerFactory.findSerializerByLookup. This requires a reflection hint for the default constructor.
The serializers registered as classes are:
com.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicBooleanSerializercom.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicIntegerSerializercom.fasterxml.jackson.databind.ser.std.StdJdkSerializers.AtomicLongSerializercom.fasterxml.jackson.databind.ser.std.FileSerializercom.fasterxml.jackson.databind.ser.std.ClassSerializer
Comment From: philwebb
There's also TokenBufferSerializer registered directly in BasicSerializerFactory.