[stephen]

Personally, I think "blessing" UI frameworks as JSRs ("official!") is a bad idea.

I think it leads to the UI framework (e.g. JSF in the past or this new MVC spec) "winning" and getting adopted by teams who, if they had to evaluate several competing non-blessed frameworks, would pick something better/easier/more modern, but instead go with the JSR-backed option.

Although perhaps I'm just being pessimistic. JSRs can probably be a good thing; as a programmer in the JVM ecosystem, I've just never considered "it's a JSR" as a brand of quality/something that should affect my choice, and if anything it's the opposite.

(My pessimism aside, if they're basing the spec on existing good ideas, like JPA did for Hibernate, and JSR-310 did for Joda time, that is at least a smart approach.)