How to add a new field to the Authorization Header?

[Lavinia]

Hi..

I need to add a new field to the Authorization Header, so I added
in the class AuthorizationHeader a new String (public static final
String Key="key";). After that, I add in PcscfService.java, in
function authencticate, the value I need. But when the SCSCF receives
the message, it sends a 503 Forbidden error. So, what more classes do
I have to modify? Or how can I delete this field from the message if I
don't need it anymore after this step? ( I've tried
request.remove(AuthorizationHeader.Key) , but it doesn't work like
that...)