ServiceTagSupport: the URL contained an invalid scheme

[Cantor, Scott]

One could make a case that schema aside, having the Java URL class kick in and enforce it's own arbitrary rules over URI syntax isn't necessarily ideal here. Might be something to look at just relaxing back to String in a future release.

I don't have much sympathy when it comes to schema validation itself, but having passed the parser and if it's fit for purpose, I don't see a lot of value in trying to be that strict in this kind of area.

-- Scott