`@Status` annotation is ignored when an empty publisher is returned

[colesnodgrass]

Expected Behavior

given:

@Controller("/")
class Controller { 
  @Get("/502")
  @Status(HttpStatus.BAD_GATEWAY)
  fun badGateway(): Publisher<String> = Mono.empty()
}

/502 should return a 502 status code. This works as expected if Mono.just("") is returned instead.

Actual Behaviour

The status code 404 is returned.

Steps To Reproduce

No response

Environment Information

Java 17
Kotlin 2.1.20

Example Application

No response

Version

4.8.3