Hi,
I was unable to access the Content-Type header associated with an
InputStream field on a @MultipartForm parameter, and so I created a
patch for Resteasy :-).
https://issues.jboss.org/browse/RESTEASY-1405
It's a small change to MultipartFormAnnotationReader so that it can
inject InputPart fields as well as InputStream fields.
Cheers,
Chris