ArgumentValue vs Optional (nullabale parameter) GraphQL Controller

Question

Should I use ArgumentValue or Optional when I have a GraphQL Controller with an input parameter that can be nullable? Both approaches are valid, but what is the difference between ArgumentValue and Optional?

@QueryMapping
public String test(ArgumentValue<Integer> intValue) {
    return testService.getData(intValue);
}


@QueryMapping
public String test(Optional<Integer> intValue) {
    return testService.getData(intValue);
}