* [JaxRS-CXF][bug #4330] support containers in return types
before this commit if a method returned a container (List or Map) of
THING (i.e. List<THING> or Map<String, THING>) the generated return type would
drop the container and only leave THING.
this commit fixes this issue such that the container type is properly
generated.
* regenerate jaxrs-cxf petstore sample