tree2 node expanded problem

[st...@bt.com]

I have a tree2 'Root' node containing items which the User can select 
If the User selects an item they can then hit a 'Remove' button
The screen gets refreshed and the item is gone
This operates correctly until the last item gets 'Removed' - when I get
an error
 
Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: 
Encountered a node [0] + with an illogical state.  Node is expanded but
it is also considered a leaf 
(a leaf cannot be considered expanded.
 
In my 'Remove' code I have
List l = tree.getChildren();
if(l.size() == 0){
tree.setLeaf(true);
}
 
But this does NOT then seem to propagate out to the GUI rendered
component
 
 
I would have expected the Expanded state of a node to be false if the
node has ZERO children
 
Is this a bug, or is there something I've missed
 
Thanks
 
Stefan Maric | IT & Professional Services | BT Global Services
E: stefan.maric@bt.com  |  www.bt.com/globalservices 
 
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