[rch]

For the last few years my apps have trending towards components that don't do much individually, but can be made to work well together. I haven't used Jersey on anything major, but it fits the profile I'm looking for.

For what it's worth, Akka is even more relevant to what I'm doing.

[eropple]

That's fair, but Jersey's not really very good at many of those individual things. It's not a great tool for a JSON API unless your consumption target is pretty much the same domain library on the other side because you'll end up neck-deep in @JsonProperty. It's not great as a frontend because Freemarker, StringTemplate, and Velocity are all pretty gross.

Play, for me, gives me good tools for doing stuff, and I can make individual services as big or as small as I want.