Get null fields after deserialization java JSON

Question

I assume a problen in class structure. But I do not see where. Here is a code. I'm gonna use only some values from JSON. If you need some other code part just let me know. Maily I think I get objest (user) wuth null values here:

User userDTOGetOne = userRequester.getUser
  (
    token,
    new HashMap<String, Object>() {{ put("Uuid", userResponseDTO.getUserUuid()); }}
   )
   .getBody()
   .as(User.class);

I suppose here is a problem .as(User.class) with class structure. I have compared them not once and I can not find a problem. Thank you in advance.

Answer 1

Finally, I found out your problems.

1.@JsonRootName("User") in User class doesn't work, I have to create a separate UserDTo class.

import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;

@Data
public class UserDTO {
    @JsonProperty("User")
    private User user;
}

2.In class User

private HashMap<String, HashMap<String, CustomFieldDTO> > UserCustomFields;

should be

private Map<String, CustomFieldDTO> UserCustomFields;

3.In class CustomFieldDTO

private HashMap<String, CustomFieldVariableDTO> WebAdmin;
private HashMap<String, CustomFieldVariableDTO> Client;

should be

private CustomFieldVariableDTO WebAdmin;
private CustomFieldVariableDTO Client;

---

I make a simple test

UserDTO user = res.as(UserDTO.class);
System.out.println(user);

UserDTO(user=User(Uuid=b5ee1186-7355-4810-a422-c427c1ae420c, 
Username=golden_snich_testt, [email protected], FirstName=Bob, 
LastName=Sigal, Birthdate=1995-01-07T00:00:00Z, Phone=+12698741258, 
Notes=null, Locked=false, PostPayLimit=10.0, HighSchoolUuid=null, 
IsVerifiedHighSchoolUser=false, UserCustomFields={9cebfaaa-ca66-4bbd-baa3- 
557b0645c293=CustomFieldDTO(FieldUuid=null, FieldType=String, 
FieldName=null, WebAdmin=CustomFieldVariableDTO(Status=0, 
AllowChangeStatus=false), Client=CustomFieldVariableDTO(Status=0, 
AllowChangeStatus=false), IsDefault=false, 
SerializedValue=Nickyfieldname213241), bb854ba1-8ef7-4cfb-9fe7- 
8c6d9a0551b2=CustomFieldDTO(FieldUuid=null, FieldType=String, 
FieldName=null, WebAdmin=CustomFieldVariableDTO(Status=0, 
AllowChangeStatus=false), Client=CustomFieldVariableDTO(Status=0, 
AllowChangeStatus=false), IsDefault=false, 
SerializedValue=Nickyfieldname2)}))