Smack 3.4.1

Smack Smack Dev
1

After changing the .jar files to use the 3.4.1, I find that my code is unable to run , ie when using the previous version of the smack api, my messages will be sent with an additional line of “Username : null”. However after using the 3.4.1 version the messages that I send from 1 client to another client arent getting recived I am unsure how to solve.

2

How do you expect to get help without showing the code, errors from the logs and more information? There are no mind readers here. Also you tag it with google-talk. How is this related?

1 Like
3

Here is the error below which i copied from the console.

java.lang.NullPointerException

at BuddyListFrame.startChat(BuddyListFrame.java:484)

at BuddyListFrame.access$8(BuddyListFrame.java:483)

at BuddyListFrame$2.chatCreated(BuddyListFrame.java:185)

at org.jivesoftware.smack.ChatManager.createChat(ChatManager.java:227)

at org.jivesoftware.smack.ChatManager.createChat(ChatManager.java:240)

at org.jivesoftware.smack.ChatManager.access$200(ChatManager.java:48)

at org.jivesoftware.smack.ChatManager$2.processPacket(ChatManager.java:143)

at org.jivesoftware.smack.Connection$ListenerWrapper.notifyListener(Connection.jav a:858)

at org.jivesoftware.smack.PacketReader$ListenerNotification.run(PacketReader.java: 456)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)

at java.util.concurrent.FutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Receive from yai123456789@gmail.com: null

The lines 483 and 484 refer to these lines

private void startChat(final RosterEntry entry) {

Chat chat = connection.getChatManager().createChat(entry.getUser(),

null);

I am unsure of how to fix it .

4

You have a NullPointerException.

It looks like connection is not initialized in

Chat chat = connection.getChatManager().createChat(entry.getUser(),null);

The stack trace show a strange flow to your code. Your listener is being notified that a Chat has been created, and then you attempt to create another Chat.