Hostname escaping characters. Bug in ExternalComponent connection?

Openfire Openfire Support
1

Hi all

I am trying to develop a simple external component but I got stuck with what I suppose is a connection problem. I have a code looking like this:

public class Main {
    public static void main(String[] args)
    {
        ExternalComponentManager mgr = new ExternalComponentManager("myHost-ubuntu", 5276);
        mgr.setSecretKey("mysub", "123456");         try
        {
            mgr.addComponent("simpleservice", new ServiceComponent());
        }
        catch (ComponentException e)
        {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "main", e);
            System.exit(-1);
        }         while (true) {
            try {
                Thread.sleep(10000);
            } catch (Exception e) {
                Logger.getLogger(Main.class.getName()).log(Level.SEVERE, "main", e);
            }
        }
    }
}

And I receive an error:

SEVERE: main

org.xmpp.component.ComponentException: org.xmlpull.v1.XmlPullParserException: expected start tag name and not / (position: START_DOCUMENT seen </… @1:2)

at org.jivesoftware.whack.ExternalComponent.connect(ExternalComponent.java:248)

at org.jivesoftware.whack.ExternalComponentManager.addComponent(ExternalComponentM anager.java:211)

at org.jivesoftware.whack.ExternalComponentManager.addComponent(ExternalComponentM anager.java:191)

at external.component.Main.main(Main.java:21)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

Caused by: org.xmlpull.v1.XmlPullParserException: expected start tag name and not / (position: START_DOCUMENT seen </… @1:2)

at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1475)

at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395)

at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)

at org.jivesoftware.whack.ExternalComponent.connect(ExternalComponent.java:186)

… 8 more

I suppose that the problem is with my host name as connection might not escape the ‘-’ in my hostname. How can I change a hostname? Or maybe the problem is somewhere else? I tried to manually change my computer hostname by running in terminal “hosname newHostname” command and then restart setup for openfire server but that would not do the trick.

I don’t care if I could loose any data right now as I have nothing relevant connected to the server.

2

Use the IP address. Anyhow this should change nothing.

3

Oh… That’s true. The exception is still being thrown but using localhost instead of myHost-ubuntu still works. Any idea where the problem might be? I am using whack version compiled from sources… not the downloadable jar

4

Whack is from 2008 and there is no active development any more. If it’s a bug you will likely need to fix it on your own. Try to enable auditing on the Openfire server so see which packets are sent / received.

Maybe, or maybe not, a XEP was modified and the needed code change made it into Openfire but not in Whack.