code: protected static void getAlpnResult(SSLEngine engine, SSLConnectionLink link) {
          alpnNegotiator.tryToRemoveAlpnNegotiator(link.getAlpnNegotiator(), engine, link);
      }
docs: This must be called after the SSL handshake has completed. If an ALPN protocol was selected by the available provider,
  that protocol will be set on the SSLConnectionLink. Also, additional cleanup will be done for some ALPN providers.
  
  @param SSLEngine
  @param SSLConnectionLink