public void addUserList(UserStoreManager userStore) throws UserAdminException {
try {
CSVReader csvReader = new CSVReader(reader, ',', '"', 1);
String password = config.getDefaultPassword();
String[] line = csvReader.readNext();
boolean isDuplicate = false;
while (line != null && line.length > 0) {
String userName = line[0];
if (!userStore.isExistingUser(userName)) {
userStore.addUser(userName, password, null, null, null, true);