Basically KafkaNull gets a special treatement where if we see it as Message payload and input type of the function is Message we give it as is and if the input type is POJO then we simply return null Resolves #661
Basically KafkaNull gets a special treatement where if we see it as Message payload and input type of the function is Message we give it as is and if the input type is POJO then we simply return null Resolves #661