setAttributeValue(result, fessConfig.getLdapAttrHomePostalAddress(), o -> user.setHomePostalAddress(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrLabeledURI(), o -> user.setLabeledURI(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrRoomNumber(), o -> user.setRoomNumber(o.toString()));

     * The value is, e.g. labeledURI <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAttrLabeledURI();

    /**
     * Get the value for the key 'ldap.attr.roomNumber'. <br>
     * The value is, e.g. roomNumber <br>