I got null from entity with #Data when I use #Requestbody - spring

Question

I'm a junior web developer.
I don't understand why the authenticatedPgInfo return NULL
The follow is my simple test.
#RestController
public class InitController {
#PostMapping("/test")
public String test(#RequestBody AuthenticatedPgInfo authenticatedPgInfo) {
return "";
}
}
And
#Data
public class AuthenticatedPgInfo {
private int code;
private String message;
private List<AuthenticatedPg> result;
}
If I change #Data to #Getter and #Setter, authenticatedPgInfo return null.
But, When I remove #Data, #Getter...(Lombok Annotation) and generate getter and setter, then It works!!
I don't understand why Lombok doens't work in this situation..
Can somebody help?
Thanks in advance.
test.json
{
"result": [
{
"key": "rabbit",
"value": "3"
},
{
"key": "lion",
"value": "1"
}
],
"message": "success",
"code": 0
}

Answer 1

OMG... I Made a biiiiiiiiiig mistake.
I didn't check Enable annotation processingin IntelliJ
All code all works as expected. Thank you guys!

Answer 2

The #Data annotation implicitly includes #RequiredArgsConstructor, but not #NoArgsConstructor. Since Jackson needs a no argument constructor, then you would need to provide one. You can do that with Lombok by simply adding #NoArgsConstructor.
#Data
#NoArgsConstructor
public class AuthenticatedPgInfo {
private int code;
private String message;
private List<AuthenticatedPg> result;
}

Answer 3

Right now I reproduced the same example at my own - with #Data annotation only all works as expected.
To serialize json to the object, Jackson needs the default constructor of this object (i.e. without any parameters) or constructor with parameters and with #JsonCreator annotation.
By default Lombok creates the default constructor if any other does not exists. And Jackson use it. But maybe in your case something goes wrong, so you can create your DTO with #JsonCreator annotation, like this for example:
#Data
public class AuthenticatedPgInfo {
private int code;
private String message;
private List<AuthenticatedPg> result;
#JsonCreator
public AuthenticatedPgInfo(#JsonProperty("code") in code, #JsonProperty("mesage") String message, #JsonProperty("result") List<AuthenticatedPg> result) {
this.code = code;
this.message = message;
this.result = result;
}
}