No response from server.: 
        at org.jivesoftware.smackx.muc.MultiUserChat.join(MultiUserChat.java:468)
        at org.jivesoftware.smackx.muc.MultiUserChat.join(MultiUserChat.java:362)
        at org.netbeans.modules.kenai.collab.chat.KenaiConnection.join(KenaiConnection.java:137)
        at org.netbeans.modules.kenai.collab.chat.KenaiConnection.createChat(KenaiConnection.java:129)
        at org.netbeans.modules.kenai.collab.chat.KenaiConnection.getChat(KenaiConnection.java:255)
        at org.netbeans.modules.kenai.collab.chat.MessagingAccessorImpl.getMessaging(MessagingAccessorImpl.java:74)
        at org.netbeans.modules.kenai.ui.dashboard.MessagingNode.load(MessagingNode.java:184)
        at org.netbeans.modules.kenai.ui.dashboard.MessagingNode.load(MessagingNode.java:69)
        at org.netbeans.modules.kenai.ui.treelist.AsynchronousLeafNode$Loader$1.run(AsynchronousLeafNode.java:228)
        at java.lang.Thread.run(Thread.java:619)