docs: public static byte getValueLengthFromQualifier(final byte[] qualifier, 
        final int offset) {
      validateQualifier(qualifier, offset);    
      short length;
      if ((qualifier[offset] & Const.MS_BYTE_FLAG) == Const.MS_BYTE_FLAG) {
        length = (short) (qualifier[offset + 3] & Internal.LENGTH_MASK); 
      } else {
        length = (short) (qualifier[offset + 1] & Internal.LENGTH_MASK);
      }
      return (byte) (length + 1);
    }