[opennms-discuss] WebStart Poller thows exception

[semose <mi...@al...>]

I've got 1.6.11 (stable) running on a w2k8R2 VM to get the feel for it before
we deploy. The plan is to put the main OpenNMS server in our datacentre,
then have a poller here in the office. I followed the guide
(http://www.opennms.org/wiki/Remote_Monitoring) to editing the related .xml
config files, and (after installing the latest JDK) went to
http://opennms-hostname:8980/opennms/webstart/app.jnlp on a winxp sp3 vm.
This downloaded and successfully installed the poller (shortcut in start
menu and desktop), but when I run the poller, all I see is an empty drop
down box, and a 'Register' button that doesn't seem to do anything.
Switching back to my 2k8R2 VM with OpenNMS installed, I checked the command
prompt I started opennms in, and I see this:

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:
sun.java2d.
HeadlessGraphicsEnvironment cannot be cast to
sun.awt.Win32GraphicsEnvironment
        at sun.awt.windows.WToolkit$4.run(WToolkit.java:739)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:269)
        at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:184)
        at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:174)
        at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)

        at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

I Googled around a bit for parts of this error message, but only got an old,
seemingly unrelated, solved ticket on sun's bug repo, and a few other
unrelated results. Centrally managing several locations from one interface
is pretty critical to my company's adoption of OpenNMS, so any help with
this matter would be greatly appreciated. 
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