code: public void updatedTemplate(Bundle bundle, File templateFile) {
          ThymeLeafTemplateImplementation template = getTemplateByFile(templateFile);
          if (template != null) {
              LOGGER.debug("Thymeleaf template updated for {} ({})", templateFile.getAbsoluteFile(), template.fullName());
              updatedTemplate();
          } else {
              try {
                  addTemplate(bundle, templateFile.toURI().toURL());
              } catch (MalformedURLException e) { //NOSONAR
                  // Ignored.
              }
          }
      }
docs: Updates the template object using the given file as backend.
  
  @param bundle the bundle containing the template, use system bundle for external templates.
  @param templateFile the template file