final HeaderMap outboundRequestHeaders = request.getRequestHeaders();
copyHeaders(outboundRequestHeaders, inboundRequestHeaders);
final long requestContentLength = exchange.getRequestContentLength();
if (HttpContinue.requiresContinueResponse(exchange)) {
request.setContinueHandler(new HttpContinueNotification() {
@Override
public void handleContinue(final ContinueContext context) {
HttpContinue.sendContinueResponse(exchange, new IoCallback() {
@Override
public void onComplete(final HttpServerExchange exchange, final Sender sender) {