public static final MediaType FORM_DATA =
      createConstant(APPLICATION_TYPE, "x-www-form-urlencoded");

  /**
   * As described in <a href="https://www.rsa.com/rsalabs/node.asp?id=2138">PKCS #12: Personal
   * Information Exchange Syntax Standard</a>, PKCS #12 defines an archive file format for storing
   * many cryptography objects as a single file.
   *
   * @since 15.0
   */