public String getEditModeContent() {
    StringBuilder portletContent = new StringBuilder();
    try {
      PortalRequestContext prcontext =
          (PortalRequestContext) WebuiRequestContext.getCurrentInstance();
      prcontext.ignoreAJAXUpdateOnPortlets(true);
      StatefulPortletContext portletContext = uiPortlet_.getPortletContext();

      ExoPortletInvocationContext portletInvocationContext =
          new ExoPortletInvocationContext(prcontext, uiPortlet_);

      List<Cookie> requestCookies =
          new ArrayList<Cookie>(Arrays.asList(prcontext.getRequest().getCookies()));

      PortletInvocation portletInvocation = uiPortlet_.create(RenderInvocation.class, prcontext);
      RenderInvocation renderInvocation = (RenderInvocation) portletInvocation;
      // make sure we are in the EDIT mode, and not whatever the current portlet mode is for the
      // Portlet
      renderInvocation.setMode(Mode.create(PortletMode.EDIT.toString()));

      PortletInvocationResponse portletResponse = uiPortlet_.invoke(renderInvocation);
      portletContent.append(uiPortlet_.generateRenderMarkup(portletResponse, prcontext).toString());
    } catch (Throwable ex) {
      WebuiRequestContext webuiRequest = WebuiRequestContext.getCurrentInstance();
      portletContent.append(
          webuiRequest.getApplicationResourceBundle().getString("UIPortlet.message.RuntimeError"));
      log.error(
          "The portlet "
              + uiPortlet_.getName()
              + " could not be loaded. Check if properly deployed.",
          ExceptionUtil.getRootCause(ex));
    }
    return portletContent.toString();
  }