code: public static ImageUtils getImageUtils() {
      if (imageUtils == null) {
        try {
          Class clazz = Class.forName(IMAGE_UTILS);
          imageUtils = (ImageUtils) clazz.newInstance();
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
          LOGGER.warn("Cannot instanciate util: {}", e.getMessage());
          throw new IllegalStateException(e);
        }
      }
      return imageUtils;
    }
docs: Retrieve ImageUtils implementation
  @return ImageUtils instance