void internalConnect(final Handler<ClientConnection> connectHandler, final Handler<Throwable> connectErrorHandler) {
if (bootstrap == null) {
// Share the event loop thread to also serve the HttpClient's network traffic.
VertxEventLoopGroup pool = new VertxEventLoopGroup();
pool.addWorker(actualCtx.getEventLoop());
bootstrap = new Bootstrap();
bootstrap.group(pool);
bootstrap.channel(NioSocketChannel.class);
tcpHelper.checkSSL(vertx);