}

            if ( cb instanceof NameCallback ) {
                NameCallback nc = (NameCallback) cb;
                String userDomain = this.getSpecifiedUserDomain();
                if ( this.getUsername() != null && userDomain != null ) {
                    nc.setName(this.getUsername() + "@" + userDomain);
                }
            }

    @Override
    public String getUserDomain () {
        return this.domain;
    }


    /**
     * 
     * @return the original specified user domain
     */
    public String getSpecifiedUserDomain () {
        return this.domain;
    }


    /**
     * Returns the username.
     * 
     * @return the username
     */
    public String getUsername () {