Bootstrap b = new Bootstrap();
b.group(workerGroup);
b.channel(NioSocketChannel.class);
b.option(ChannelOption.SO_KEEPALIVE, true);
b.remoteAddress(HOST, PORT);
b.handler(new SpdyClientInitializer(sslCtx, httpResponseHandler));
// Start the client.
Channel channel = b.connect().syncUninterruptibly().channel();
System.out.println("Connected to " + HOST + ':' + PORT);