I have that class

package com.akensys.testlucas.model;

import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import lombok.Data;

@Entity
@Data
public class Vetement {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private int code;
    private String sku;
    }

In postman i send http://localhost:8081/user/addJSON :

{
    "code":1310695,
    "sku":"524080012403"
}

All its okay i have the code and sku : Vetement(id=null, code=1310695, sku=524080012403)

But if my JSON looks like that :

{
    "CODE":1310695,
    "SKU":"524080012403"
}

And if I modify my class : code to CODE and sku to SKU It still doesn’t work
I need to keep the JSON with name in uppercase so how can i make it works and why it doesnt work ?