docs: public static Converter<String, Object> createPathParamConverter(final Type resultType) {
      if (!(resultType instanceof Class)) {
        throw new IllegalArgumentException("Unsupported @PathParam type " + resultType);
      }
      return new Converter<String, Object>() {
        @Override
        public Object convert(String value) {
          return ConvertUtils.convert(value, (Class<?>) resultType);
        }
      };
    }