docs: private static void propogateSecureSession(HttpServletRequest request,
                                                 Message message) {
          final String cipherSuite =
              (String) request.getAttribute(SSL_CIPHER_SUITE_ATTRIBUTE);
          if (cipherSuite != null) {
              final java.security.cert.Certificate[] certs =
                  (java.security.cert.Certificate[]) request.getAttribute(SSL_PEER_CERT_CHAIN_ATTRIBUTE);
              message.put(TLSSessionInfo.class,
                          new TLSSessionInfo(cipherSuite,
                                             null,
                                             certs));
          }
      }