docs: public Map<String, String> properties(String file) {
  
          Map<String, String> props = new HashMap<String, String>();
          if (isNotInitialized()) {
              return props;
          }
          try {
              props = CmsJspTagProperty.propertiesTagAction(file, getRequest());
          } catch (Throwable t) {
              handleException(t);
          }
          return props;
      }