}

        KrbAsReqBuilder builder = new KrbAsReqBuilder(principalName, keytab);
        Credentials creds = builder.action().getCreds();
        builder.destroy();

        return Krb5Util.credsToTicket(creds);
    }


    public static Subject getInitiatorSubject ( KerberosPrincipal principal, String password, Long expire ) throws Exception {