* The value is, e.g. ou=Group,dc=fess,dc=codelibs,dc=org <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAdminGroupBaseDn();

    /**
     * Get the value for the key 'ldap.admin.group.object.classes'. <br>
     * The value is, e.g. groupOfNames <br>