Does Jersey got any extensions to support frameworks like Shiro, Guice for example? Or do you use them seperately, independent from jersey?
How does it look for other JAX-RS frameworks. Restlet, RestEasy - do they provide any extensions or is it done seperately as well?
I already know that they got their own implementation of OAuth instead of cooperating with other OAuth framworks.
Regarding Restlet Framework, we offer an extensive set of extensions summarized here. It is however generally easy to do your own integration with other libraries. Regarding Guice, there is already an extension in the Restlet Incubator, see specifications here.