At present, it appears that 404 is the only error code that can be returned from Handler::handle(). Either a non-null Resource is returned from findTarget() and returned correctly, or the return value is null and the result is a 404.
I want to return different error codes from within findTarget(), more specifically 400 and potentially 401, depending on the input. Originally the plan was to do this by creating a child class where the entire body of handle() is wrapped in a try/catch block and throwing exceptions up past the place where null results get converted into 404 errors, to be caught and converted to error codes as needed. However, that requires creating a new method to replace findTarget so it can have a throws statement in its signature, and is also extremely brittle to change (as the differences in the Handler between b20 and b23 show). Is there a better way to have more control over what error codes individual restlets can return?
