java.lang.IllegalStateException: Not connected to server.
   at org.jivesoftware.smack.XMPPConnection.addPacketListener(XMPPConnection.java:747)
   at org.jivesoftware.smackx.muc.MultiUserChat.addMessageListener(MultiUserChat.java:1880)
   at org.netbeans.modules.kenai.collab.chat.KenaiConnection.createChat(KenaiConnection.java:198)
   at org.netbeans.modules.kenai.collab.chat.KenaiConnection.initChats(KenaiConnection.java:406)
   at org.netbeans.modules.kenai.collab.chat.KenaiConnection.tryConnect(KenaiConnection.java:257)
   at org.netbeans.modules.kenai.collab.chat.KenaiConnection$1.run(KenaiConnection.java:466)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1417)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1955)