Why would it be outside Spring's scope? Right now,...

# spring

[rocketraman]

Why would it be outside Spring's scope? Right now, I can define a request parameter like this and Spring knows that the parameter is not required (i.e. I don't need to specify required = false on @RequestParam):
@RequestParam code: Optional<String>

Shouldn't Spring similarly be able to apply the same logic to:
@RequestParam code: String?