if (!normalizedAttribute.equals(CHARSET_ATTRIBUTE)) {
      mediaType.parsedCharset = this.parsedCharset;
    }
    // Return one of the constants if the media type is a known type.
    @SuppressWarnings("GetOrDefaultNotNull") // getOrDefault requires API Level 24
    MediaType result = firstNonNull(knownTypes.get(mediaType), mediaType);
    return result;
  }

  /**

    if (!normalizedAttribute.equals(CHARSET_ATTRIBUTE)) {
      mediaType.parsedCharset = this.parsedCharset;
    }
    // Return one of the constants if the media type is a known type.
    @SuppressWarnings("GetOrDefaultNotNull") // getOrDefault requires API Level 24
    MediaType result = firstNonNull(knownTypes.get(mediaType), mediaType);
    return result;
  }

  /**