docs: @JavaScriptMethod
      public HttpResponse render() {
          return new HttpResponse() {
              public void generateResponse(StaplerRequest req, StaplerResponse rsp, Object node) throws IOException, ServletException {
                  try {
                      new DefaultScriptInvoker() {
                          @Override
                          protected JellyContext createContext(StaplerRequest req, StaplerResponse rsp, Script script, Object it) {
                              JellyContext context = super.createContext(req, rsp, script, it);
                              for (int i=bodyStack.length-1; i>0; i--) {// exclude bodyStack[0]
                                  context = new JellyContext(context);
                                  context.setVariable("org.apache.commons.jelly.body",bodyStack[i]);
                              }
                              try {
                                  AdjunctsInPage.get().assumeIncluded(adjuncts);
                              } catch (IOException | SAXException e) {
                                  LOGGER.log(Level.WARNING, "Failed to resurrect adjunct context",e);
                              }
                              return context;
                          }
  
                          @Override
                          protected void exportVariables(StaplerRequest req, StaplerResponse rsp, Script script, Object it, JellyContext context) {
                              super.exportVariables(req, rsp, script, it, context);
                              context.setVariables(variables);
                              req.setAttribute("currentDescriptorByNameUrl",currentDescriptorByNameUrl);
                          }
                      }.invokeScript(req,rsp,bodyStack[0],null);
                  } catch (JellyTagException e) {
                      LOGGER.log(Level.WARNING, "Failed to evaluate the template closure", e);
                      throw new IOException("Failed to evaluate the template closure",e);
                  }
              }
          };
      }