List<String> groups = new ArrayList<>();
            groups.add("group_" + i);
            List<String> roles = new ArrayList<>();
            List<String> groupIds = new ArrayList<>();
            groupIds.add("id_" + i);

            try {
                method.invoke(authenticator, null, groups, roles, groupIds);
            } catch (Exception e) {
                caughtException.set(e);
            }
        }