JAX-RS seeing multipart map as streams rather than strings?

[Benson Margulies]

  This works, but is there an equivalent that allows me to read the
attachment as a stream instead of having it entirely turned into a string?

  @POST
    @Path("/gazetteer/{id}/replace-contents/{type}")
    @Consumes("multipart/form-data")
    public Response takeGazetteerContents(@PathParam("id") String id,
                                          @PathParam("type") String type,
                                          MultivaluedMap<String, String>
formData) {
        List<String> content = formData.get("content");
        return null;
    }