OkHttpClient client = new OkHttpClient.Builder() .connectTimeout(10, TimeUnit.SECONDS) .readTimeout(10, TimeUnit.SECONDS) .build(); Request request = new Request.Builder() .url("https://example.com") .get() .build(); Response response = client.newCall(request).execute(); CloseableHttpClient client = HttpClients.createDefault(); HttpGet request = new HttpGet("https://example.com"); CloseableHttpResponse response = client.execute(request); EventLoopGroup group = new NioEventLoopGroup(); Bootstrap bootstrap = new Bootstrap(); bootstrap.group(group) .channel(NioSocketChannel.class) .handler(new ChannelInitializer<SocketChannel>() { @Override protected void initChannel(SocketChannel ch) throws Exception { ch.pipeline().addLast(new HttpClientCodec(), new HttpObjectAggregator(8192), new HttpResponseHandler()); } }); ChannelFuture future = bootstrap.connect("example.com", 443).sync();