// Test with another type and empty raw data
        int type2 = AvPair.MsvAvEOL;
        byte[] raw2 = new byte[] {};
        AvPair avPair2 = new AvPair(type2, raw2);

        assertEquals(type2, avPair2.getType(), "Type should match the constructor argument for empty raw data.");

            if (src[8] == 1) {
                final Type1Message type1 = new Type1Message(src);
                final Type2Message type2 = new Type2Message(tc, type1, challenge, null);
                msg = new String(Base64.encode(type2.toByteArray()), "US-ASCII");
                resp.setHeader("WWW-Authenticate", "NTLM " + msg);
            } else if (src[8] == 3) {

            if (src[8] == 1) {
                final Type1Message type1 = new Type1Message(src);
                final Type2Message type2 = new Type2Message(type1, challenge, null);
                msg = Base64.encode(type2.toByteArray());
                resp.setHeader("WWW-Authenticate", "NTLM " + msg);
            } else if (src[8] == 3) {