I was hoping to see more responses :). Looks like hacker community already has ditched Java Web frameworks.
I personally like how Play has evolved, but adoption is severely thin. They just got typesafe backing but Spring with the muscle behind it might be able to shove the rest away.
I am exploring play for my next project, and all i can say is i am thoroughly impressed. With typesafe providing resources, i am hoping this seriously dents J2EE stacks.
I can only speak from my very limited context, which is "big banks, and payment processing". This won't dent that realm in the least, at least not anytime soon. The tech I'm using is 5-8 years old (J2EE, some even in Java 1.4 still), and the banks have no desire to move off of it.
A few "renegades" are using JBoss for some small one-offs, but nothing in their main processing stacks. With open source, there's no one to sue, no one to hold to the fire, and "only hippies write systems with it"(a paraphrase, obviously).
It crushes my soul. (But pays my mortgage.) I'm really conflicted as to my future, honestly.
Again, this is a very narrow view of a very limited scope, so I'd be anxious to hear other people's experience.
This comparison is asinine at best. The runtime is bound to be bigger. And remember DART eventually will have the runtime included in Chrome and hopefully other browsers. The way things are going in the browser world, all people might actually care about is Chrome and if there is a wonderful IDE support which comes with strongly typed languages, there is a real shot at this becoming a standard.
We are evaluating Cloud foundry (Java GWT App) and so far changes seem doable to port. The reason cloud foundry is viable is that there is no lock in and if one provider flips another one is just round the corner.
I personally like how Play has evolved, but adoption is severely thin. They just got typesafe backing but Spring with the muscle behind it might be able to shove the rest away.