@Override
            public String getLdapAdminGroupFilter() {
                return "(cn=%s)";
            }
        };

        // Normal name
        assertEquals("(cn=developers)", fessConfig.getLdapAdminGroupFilter("developers"));

        // Asterisk injection attempt
        assertEquals("(cn=dev\\2a)", fessConfig.getLdapAdminGroupFilter("dev*"));

        // LDAP injection attempt

        return oc;
    }

    String getLdapAdminGroupFilter();

    default String getLdapAdminGroupFilter(final String name) {
        return String.format(getLdapAdminGroupFilter(), LdapUtil.escapeValue(name));
    }

    String getLdapAdminGroupBaseDn();

     * The value is, e.g. cn=%s <br>
     * comment: Group filter for LDAP admin.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAdminGroupFilter();

    /**
     * Get the value for the key 'ldap.admin.group.base.dn'. <br>
     * The value is, e.g. ou=Group,dc=fess,dc=codelibs,dc=org <br>
     * comment: Base DN for LDAP admin group.