code: public void put(String uuid, GuacamoleTunnel tunnel) {
          tunnelMap.put(uuid, new GuacamoleHTTPTunnel(tunnel));
      }
docs: Registers that a new connection has been established using HTTP via the
  given GuacamoleTunnel.
  
  @param uuid
  The UUID of the tunnel being added (registered).
  
  @param tunnel
  The GuacamoleTunnel being registered, its associated connection
  having just been established via HTTP.