Grouped table doesn't update underlying JTree

I'm having a problem getting a groupable JTable to work. The JTable has an underlying JTree which is used to group on a specific column. The table can expand and retract it's nodes perfectly however when I call JTree.expandPath it doesn't update the table view immediately, instead it updates after a call to showVisible on a dialog.
My question is; when does the view of a table get updated after having called expandPath on a tree. From my perspective at least it seems it doesn't expand it immediately on the call to expandPath. Do I need to a function like refresh to model?
Thanks for the help!
EDIT: My assumption is it has something to do with the same reason why doing :
setVisible(false)
setVisible(true)
and stepping through those statements doesn't produce changes in the UI. Is there some kind of commit method in Swing?
Edited by: alex.p on 29-Nov-2010 03:58

I've used this basic code structure before:
DefaultTreeModel model = (DefaultTreeModel)tree.getModel();
DefaultMutableTreeNode root = (DefaultMutableTreeNode)model.getRoot();
root.add(new DefaultMutableTreeNode("another_child"));
model.reload(root);If you need further help then you need to create a "Short, Self Contained, Compilable and Executable, Example Program (SSCCE)", that demonstrates the incorrect behaviour.
http://homepage1.nifty.com/algafield/sscce.html
Don't forget to use the "Code Formatting Tags", so the posted code retains its original formatting.
http://forum.java.sun.com/help.jspa?sec=formatting

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Stefano POGLIANI Forté Software Consultant
E-Mail : [email protected] Tel : +33.0)450201025
Fax : +33.(0)450200257 Mobile : +33.(6)08431221
Visit the Forté Web Site : http://www.forte.com/
Ducunt fata volentem, nolentem trahunt....
-----Original Message-----
From: John Hodgson [SMTP:[email protected]]
Sent: Wednesday, July 02, 1997 8:39 PM
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Subject: DataField, update underlying data via TOOL, Express
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John Hodgson |Descartes Systems Group Inc.|[email protected]
Systems Engineer|120 Randall Drive |http://www.descartes.com
|Waterloo, Ontario |Tel.: 519-746-8110 x250
|CANADA N2V 1C6 |Fax: 519-747-0082

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