How to display Body type in Swagger (OAS3) for GET requests?

Question

So i'm working on some APIs (Spring Boot)where I have both input and output of type XML. For documenting, I'm using Swagger (OpenAPI 3). Here is the controller:

@RestController
@Validated
@RequestMapping(value = "v1/my-endpoint", consumes = MediaType.APPLICATION_XML_VALUE)
public class MyController{

    private final MyService myService;

    @GetMapping
    public ResponseEntity<MyObject> myMethod(@RequestBody @Valid @NotNull MyObjectRequest request) {
       // ...
       return response;
    }
}

My problem is: The endpoint being of type GET, the swagger interface shows the input of type JSON (see picture):

If I change the HTTP verb to PATCH, POST etc, it's showing correctly (see picture).

So, how can I make the swagger UI see the body of type application/xml ?
EDIT1: The changes have to be in code. I shouldn't make any changes in .yaml or .properties file

EDIT2: When sending the request this way(request body as JSON), being a GET method, the swagger generates the request with query parameters (so something like localhost:8080?param1=string&param2=string&param3=string)

Answer 1

As noted on this page Swagger UI does not support Get-requests with a payload in the body.