/// <summary>
        /// Default constructor.
        /// </summary>
        /// <param name="responseLine">IMAP server response line.</param>
        /// <exception cref="ArgumentNullException">Is raised when <b>responseLine</b> is null.</exception>
        public IMAP_ClientException(string responseLine) : base(responseLine)
        {
            if (responseLine == null)
            {
                throw new ArgumentNullException("responseLine");
            }

            m_pResponse = IMAP_r_ServerStatus.Parse(responseLine);
        }
        /// <summary>
        /// Default constructor.
        /// </summary>
        /// <param name="responseCode">IMAP response code(BAD,NO).</param>
        /// <param name="responseText">Response text.</param>
        /// <exception cref="ArgumentNullException">Is raised when <b>responseCode</b> or <b>responseText</b> is null reference.</exception>
        /// <exception cref="ArgumentException">Is raised when any of the arguments has invalid value.</exception>
        public IMAP_ClientException(string responseCode, string responseText) : base(responseCode + " " + responseText)
        {
            if (responseCode == null)
            {
                throw new ArgumentNullException("responseCode");
            }
            if (responseCode == string.Empty)
            {
                throw new ArgumentException("Argument 'responseCode' value must be specified.", "responseCode");
            }
            if (responseText == null)
            {
                throw new ArgumentNullException("responseText");
            }
            if (responseText == string.Empty)
            {
                throw new ArgumentException("Argument 'responseText' value must be specified.", "responseText");
            }

            m_pResponse = IMAP_r_ServerStatus.Parse(responseCode + " " + responseText);
        }