@Override
protected void addCodec(ChannelHandlerContext ctx) throws Exception {
ChannelPipeline p = ctx.pipeline();
String name = ctx.name();
Socks5InitResponseDecoder decoder = new Socks5InitResponseDecoder();
p.addBefore(name, null, decoder);
decoderName = p.context(decoder).name();
encoderName = decoderName + ".encoder";