We've recently added a Spring Security JAXRS demo to our Fuse Service Framework distributions covering both 2.1 and 2.2 lines.
Spring Security is powerful indeed. The demo shows how easily one can secure JAXRS resource classes, those derived from interfaces and those which are plain classes and are wrapped by CGLIB proxies, with or without applying dedicated security annotations to individual resource methods.
You need to create an account in order to see the source of the demo. I hope you can appreciate why we added the demo to Fuse : we intend to continue raising the awareness of Fuse. This demo will be regularly tested by our CPI process which is based on Xharness.
You can also get the idea of what the demo does by checking the system tests in CXF trunks on Apache. In fact the system tests evolved a bit since the demo was created, they show how subresource methods can be controlled too, with subresource instances being injected Spring proxies themselves.
Hopefully though the perceived initial inconvenience to do with the account activation :-) will be compensated by the fact that you're likely to find some information of interest on everything which is happening in the Fuse world and may decide to get back again :-)