...

Spring is a first class citizen with Apache CXF. CXF supports the Spring 2.0 XML syntax, making it trivial to declare endpoints which are backed by Spring and inject clients into your application.

Aegis Databinding

Aegis Databinding (2.0.x) is our own databinding library that makes development of code-first web services incredibly easy. Unlike JAXB, you don't need annotations at all. It also works correctly with a variety of datatypes such as Lists, Maps, Dates, etc. right out of the box. If you're building a prototype web services that's really invaluable as it means you have to do very little work to get up and running (and one of the primary reasons XFire was started a while back)

...

CXF comes under the liberal Apache license, making CXF great for all types of applications.