A possible solution can be returning a javax.ws.rs.core.Response
object. Using the javax.ws.rs.core.Response.ResponseBuilder
you can add headers to the response.
Update:
Another solution is to add a Servlet Filter (javax.servlet.Filter) on top of Wink that will add the headers to all responses.
Btw, in JAX-RS 2 it's possible to add Filters and Interceptors.