Dropwizard is where it's at right now for Java frameworks. It's a superproject that glues together the best pieces out there. Surprised it wasn't on the wikipedia list. Which brings up another point: if we're talking about web frameworks for the next decade we should really be looking at service-oriented architectures / single-page apps or whatever you want to call that model. It's quite different from the web framew…
What do you think of Play?
Dropwizard is still pretty easy to use for a Java developer but has the advantage of being standard Java and pulling together the very best open source projects out there.. so it inherits the communities and experience around each of those projects. That probably has better prospects in the long run.
I mean even if Dropwizard goes away, it's basically a glorified bundle of those projects which already have multiple years and tons of usage behind them.
Play does seem to have a burgeoning community though but it's too early to tell whether it's "take over the world" or "go the way of Scala".
[1] http://www.techempower.com/benchmarks/#section=data-r9&hw=pe...