/** The key of the configuration. e.g. registeredAddress */
    String LDAP_ATTR_REGISTERED_ADDRESS = "ldap.attr.registeredAddress";

    /** The key of the configuration. e.g. displayName */
    String LDAP_ATTR_DISPLAY_NAME = "ldap.attr.displayName";

    /** The key of the configuration. e.g. preferredLanguage */
    String LDAP_ATTR_PREFERRED_LANGUAGE = "ldap.attr.preferredLanguage";