Anyone have any pointers on how should I go about
debugging a client-side NPE?
Here's the stack trace:
94 01.06.2006 14:14:54.222 1,000 SEVERE
Thread[AWT-EventQueue-2,6,javawsApplicationThreadGroup]
com.ulcjava.base.client.UISession a got exception while
processing [java.lang.NullPointerException
at com.ulcjava.base.client.UISession.a(UISession.java:106)
at
com.ulcjava.base.client.UISession.access$400(UISession.java:83)
at com.ulcjava.base.client.UISession$4.run(UISession$4.java:1)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at
com.ulcjava.base.client.FilteringEventQueue.dispatchEvent(FilteringEvent
Queue.java:8)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
]
This is using ULC 5.2, and there are no server side
errors associated with this NPE. It's happening entirely
on the client-side and from the stack trace it looks
like it's happening entirely within ULC.
Any ideas on where to start? Maybe I have null UI
component references and events are being sent to
those components (that haven't been instantiated)?
-TPP
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