docs: public JettyBootstrap stopServer() throws JettyBootstrapException {
          LOG.info("Stopping Server...");
          try {
              if (isServerStarted()) {
                  handlers.stop();
  
                  server.stop();
  
                  LOG.info("Server stopped.");
              } else {
                  LOG.warn("Can't stop server. Already stopped");
              }
          } catch (Exception e) {
              throw new JettyBootstrapException(e);
          }
  
          return this;
      }