Como eu faria isso no jersey 2.5?
String sUrl = urlPar + "/message";
WebResource resource = client.resource(sUrl);
MultiPart multipartEntity = null;
if (action.equalsIgnoreCase("TEXT")) {
multipartEntity = new FormDataMultiPart()
.field("fLogin", login)
.field("ACTION", action)
.field("destination", numero2)
.field("text", smsg);
ClientResponse clientResponse
= resource.accept("application/json")
.type(MediaType.MULTIPART_FORM_DATA)
.post(ClientResponse.class, multipartEntity);