* @return true if empty permissions are allowed, false otherwise
     */
    protected boolean allowEmptyGroupAndRole(final LdapUser ldapUser) {
        if (fessConfig.isLdapAllowEmptyPermission()) {
            return true;
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        for (final String permission : ldapUser.getPermissions()) {

     * The value is, e.g. true <br>
     * comment: Whether to allow empty permissions in LDAP.
     * @return The determination, true or false. (if not found, exception but basically no way)
     */
    boolean isLdapAllowEmptyPermission();

    /**
     * Get the value for the key 'ldap.samaccountname.group'. <br>
     * The value is, e.g. false <br>
     * comment: Whether to use samAccountName for LDAP group.