CustomDeserializer has no default (no arg) constructor

Question

I am consuming a REST Api with RestTemplate. The response I\'m getting from the API has lots of nested objects. Here\'s a little snippet as an example:

\"for         


        

Answer 1

It is required that you have a default constructor without arguments. What you can do is create one (or replace the other one if you don't really need it):

public class CustomDeserializer extends StdDeserializer {

   public CustomDeserializer() {
       super(Efs.class);
   }
   ...
}