code: void configureNotFound(Reflections reflections) {
  
          log.info("Checking for a not-found endpoint..");
          NotFound notFound = getEndpoint(NotFound.class, "not-found", reflections);
          if (notFound == null) notFound = new DefaultNotFound();
          printEndpoint(notFound, "not-found");
          this.notFound = notFound;
      }
docs: Searches for and configures the not found endpoint.
  
  @param reflections The instance to use to find classes.