final Response response = new DefaultResponse(execControl, responseHeaders, ctx.alloc(), responseTransmitter);
ctx.attr(RESPONSE_TRANSMITTER_ATTRIBUTE_KEY).set(responseTransmitter);
InetSocketAddress socketAddress = (InetSocketAddress) channel.localAddress();
final BindAddress bindAddress = new InetSocketAddressBackedBindAddress(socketAddress);
Action<Action<Object>> subscribeHandler = thing -> {
transmitted.set(true);
channelSubscriptions.put(channel, thing);
channel.closeFuture().addListener(future -> channelSubscriptions.remove(channel));