attributeList.add(new Attr_UserName(usernamePasswordCredentials
.getUsername()));
attributeList.add(new Attr_UserPassword(usernamePasswordCredentials
.getPassword()));
final AccessRequest request = new AccessRequest(radiusClient,
attributeList);
try {
final RadiusPacket response = radiusClient.authenticate(request,
this.radiusAuthenticator, this.retries);