code: public static List<MediaType> parse(final String value) throws Err.BadMediaType {
      return cache.computeIfAbsent(value, MediaType::parseInternal);
    }
docs: Convert a string separated by comma into one or more {@link MediaType}.
  
  @param value The string separated by commas.
  @return One ore more {@link MediaType}.
  @throws Err.BadMediaType For bad media types.