XMPPError connecting to stg.network.org:5222.: remote-server-error(502) XMPPError connecting to stg.network.org:5222.
  -- caused by: java.net.ConnectException: Connection refused
        at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:900)
        at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1415)
Caused: org.netbeans.modules.kenai.api.KenaiException. Server response=
        at org.netbeans.modules.kenai.api.Kenai.xmppConnect(Kenai.java:594)
        at org.netbeans.modules.kenai.api.Kenai.login(Kenai.java:198)
        at org.netbeans.modules.kenai.collab.chat.PresenceIndicator$MouseL$1$1.run(PresenceIndicator.java:169)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:602)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1084)