LDAP Implementation lacks support for other Directory Servers than MS ADS

         if (StringUtils.isNotBlank(ldapDomain)) {
            if (username.startsWith(ldapDomain)) {
                /* Only works if the user is already in SAMAccount format */
                principal = username;
                /* Futile because not referenced below this point */
                username = getUserName(username, ldapDomain);
            } else {
                /* Should also allow UPN format or native LDAP DN as principal */
                principal = ldapDomain + DOMAIN_SEPARATOR + username;
            }
        } else {
            /* Never reached because Site Properties cannot be bank */
            principal = CN_ATTRIBUTE + "=" + username + "," + baseDn; 
        }