Jackson deserialization error handling

Question

My problem is fairly simple : I have the following simple class:

public class Foo {
   private int id = -1;
   public void setId(int _id){ this.id = _id; }
          


        

Answer 1

Create a simple Mapper:

@Provider
@Produces(MediaType.APPLICATION_JSON)
public class JSONProcessingErroMapper implements ExceptionMapper {

@Override
public Response toResponse(InvalidFormatException ex) { 
    return Response.status(400)
             .entity(new ClientError("[User friendly message]"))
             .type(MediaType.APPLICATION_JSON)
             .build();
}

}