*/
    public static void cloneInternal ( Kerb5Authenticator to, Kerb5Authenticator from ) {
        NtlmPasswordAuthenticator.cloneInternal(to, from);
        to.setUser(from.getUser());
        to.setRealm(from.getRealm());
        to.setService(from.getService());
        to.setLifeTime(from.getLifeTime());
        to.setUserLifeTime(from.getUserLifeTime());

        to.canFallback = from.canFallback;

        PrincipalName principalName = new PrincipalName(
            principal.getName() + PrincipalName.NAME_REALM_SEPARATOR + principal.getRealm(),
            PrincipalName.KRB_NT_PRINCIPAL);
        return principalName;
    }


    public static Subject getInitiatorSubject ( String userName, String password, String realm, Long expire ) throws Exception {