UdpHeader udp_hdr=new UdpHeader("DemoChannel"); msg.putHeader("UDP", udp_hdr);
addHeaders(msg);
    public void testSizeMessageWithDestAndSrcAndHeaders() throws Exception {        ClassConfigurator conf=ClassConfigurator.getInstance(true);        Message msg=new Message(new IpAddress("127.0.0.1", 3333), new IpAddress("127.0.0.1", 4444), "bela".getBytes());        UdpHeader udp_hdr=new UdpHeader("DemoChannel");        msg.putHeader("UDP", udp_hdr);        _testSize(msg);    }