/** The key of the configuration. e.g. ou=People,dc=fess,dc=codelibs,dc=org */
    String LDAP_ADMIN_USER_BASE_DN = "ldap.admin.user.base.dn";

    /** The key of the configuration. e.g. organizationalPerson,top,person,inetOrgPerson */
    String LDAP_ADMIN_USER_OBJECT_CLASSES = "ldap.admin.user.object.classes";

    /** The key of the configuration. e.g. cn=%s */
    String LDAP_ADMIN_ROLE_FILTER = "ldap.admin.role.filter";

        return APP_TYPE;
    }

    @Override
    protected OptionalThing<String> myUserType() { // for framework
        return OptionalThing.of(USER_TYPE); // same reason as getUserBean()
    }

    // ===================================================================================
    //                                                                          Validation

        // ## Arrange ##
        Locale.setDefault(Locale.JAPANESE);
        final SQLException sqlException = new SQLException("some reason", "fooState", 7650);
        final SQLException sqlException2 = new SQLException("hoge reason", "barState", 7660);
        final SQLException sqlException3 = new SQLException("fuga reason", "bazState", 7670);
        sqlException.setNextException(sqlException2);
        sqlException2.setNextException(sqlException3);

                            if (auth.isDebugActive() && StringUtil.isNotBlank(auth.getLastErrorReason())) {
                                logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),
                                        auth.getLastErrorReason());
                            } else {

ldap.admin.enabled=false
ldap.admin.user.filter=uid\=%s
ldap.admin.user.base.dn=ou\=People,dc\=fess,dc\=codelibs,dc\=org
ldap.admin.user.object.classes=organizationalPerson,top,person,inetOrgPerson
ldap.admin.role.filter=cn\=%s
ldap.admin.role.base.dn=ou\=Role,dc\=fess,dc\=codelibs,dc\=org
ldap.admin.role.object.classes=groupOfNames
ldap.admin.group.filter=cn\=%s