docs: I_CmsSerialDateServiceAsync getService() {
  
          if (SERVICE == null) {
              SERVICE = GWT.create(I_CmsSerialDateService.class);
              String serviceUrl = CmsCoreProvider.get().link("org.opencms.ade.contenteditor.CmsSerialDateService.gwt");
              ((ServiceDefTarget)SERVICE).setServiceEntryPoint(serviceUrl);
          }
          return SERVICE;
      }