LDAPConnection connection = createConnection();
if (connection != null) {
try {
String[] attributes = new String[1];
attributes[0] = ouAttributeName;
LDAPSearchResults searchResults = connection.search(searchRoot, LDAPConnection.SCOPE_SUB,
"(&(objectclass=" + objectClass + ")(cn=" + userId + "))", attributes, false);
// popolamento userAttributes con attributeName e attributeValue
LDAPEntry entry = null;
if (searchResults.hasMore()) {