*/
private void saveAdmin(final String adminName, final String adminEmail)
throws ServletException {
final Transaction transaction = userRepository.beginTransaction();
try {
final Query query = new Query();
query.addFilter(User.USER_ROLE,
FilterOperator.EQUAL, Role.ADMIN_ROLE);
final JSONObject result = userRepository.get(query);
final JSONArray users = result.getJSONArray(Keys.RESULTS);
if (0 == users.length()) {
final JSONObject admin = new JSONObject();