Pubsub publish question

I am new to XMPP and pubsub. I am trying to setup a simple example to familiarize myself with how things work. I was successful in first creating a topic/node called Location and was able to publish. However, I am not able to use the PubSubManager.getNode(“Location”) on additional runs without deleting and recreating Location. Below is code that I have been trying to get working. What am I missing? I am using smack 4.1.4. Thanks in advance for the help.

String host = “192.168.133.187”;

String service = “server.domain.internal”;

int port = 5222;

String username = “user”;

String password = “password”;

AbstractXMPPConnection connection;

Message message = new Message();

XMPPTCPConnectionConfiguration config = XMPPTCPConnectionConfiguration.builder()

.setUsernameAndPassword(username, password)

.setServiceName(service)

.setHost(host)

.setPort(port)

.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)

.build();

connection = new XMPPTCPConnection(config);

try {

connection.connect();

connection.login(username, password);

} catch (XMPPException e) {

e.printStackTrace();

}

GeolocationElementExtension glee = new GeolocationElementExtension(“geoloc”, “geolocElement”);

String latitude = “35.576375”;

String longitude = “-47.436990”;

glee.setValue(“accuracy”, “0”);

glee.setValue(“alt”, “0”);

glee.setValue(“bearing”,“0”);

glee.setValue(“datum”, “0”);

glee.setValue(“lat”, “” + latitude);

glee.setValue(“lon”, “” + longitude);

glee.setValue(“speed”, “0”);

glee.setValue(“timestamp”, “” + System.currentTimeMillis());

message.addExtension(glee);

message.setTo(service);

message.setFrom("");

//Create the topic

ConfigureForm f = new ConfigureForm(Type.submit);

//Set some params for the topic – according to your requirement

f.setPersistentItems(true);

f.setDeliverPayloads(true);

f.setAccessModel(AccessModel.open);

f.setPublishModel(PublishModel.open);

f.setSubscribe(true);

//Note that you need to set the second parameter for openfire. This is the

//same as the pubsub service name

PubSubManager mgr = new PubSubManager(connection, service);

Node n = mgr.getNode(“Location”); //fail

//mgr.deleteNode(TOPIC);

// Node n = mgr.createNode(TOPIC, f);

SimplePayload payload = new SimplePayload(“location”,“pubsub:test:location”, glee.toXML());

PayloadItem payloadItem = new PayloadItem(null, payload);

((LeafNode) n).publish(payloadItem);

connection.disconnect();

System.out.println(“Disconnected”);