Hello, recently I've discovered that the JavaDoc of the instance methods of java.net.http.HttpHeaders lacks the throws declarations for NullPointerExceptions. The static creator method `of` contains such a declaration. So the snippet `HttpHeaders.of(null, null)` is documented to throw an NPE, while the snippet `HttpHeaders.of(Map.of(), (k, v) -> true).firstValue(null)` currently isn't.
I'd propose to add the missing JavaDoc throws declarations to the #allValues(String), #firstValueAsLong(String) and #firstValue(String) methods as they all can throw an NPE through `requireNonNull(name);` in the allValues method. If there's interest in this change, I'd appreciate if anyone would like to sponsor me on this one. Cheers, Steffen
