Problems resetting the model for a JTable

Question

Hello,
My scenario sounds like this: from one separate thread I'm listening for users that log into the network. Those users have to be displayed in an interface that I chose to be a JTable.
When a user/users are found the view is notified. It seems simple in principle.
However, I receive from time to time some execeptions from the Event Dispatch Thread. The errors seem very very simple and intuitive but coming from a different thread I can't tell why they come. Another big problem is that those errors are indeterminate. I can't tell when or if they arise at all. Below is the code with the problems along with the exceptions.
// reconstructing the model here from the peers ArrayList
String[] columnNames = theTable.getColumnNames();          
Object[][] data = new Object[peers.size()][columnNames.length];
for (int i = 0; i < peers.size(); i++) {                    
     for (int j = 0; j < Constants.userColumns; j++) {
               if (j == 0)
                    data[i][j] = peers.get(i);
               else
                    data[i][j] = "";
// resetting the model for my component; when I comment this part everything works ok
theTable.setModel(new DefaultTableModel(data, columnNames) {
     private static final long serialVersionUID = 1L;
     public boolean isCellEditable(int row, int column) {
                 return false;
Exception in thread "AWT-EventQueue-0" java.util.NoSuchElementException: Vector Enumeration
     at java.util.Vector$1.nextElement(Unknown Source)
     at javax.swing.plaf.basic.BasicTableUI.getPreferredSize(Unknown Source)
     at javax.swing.JComponent.getPreferredSize(Unknown Source)
     at javax.swing.JTable.getScrollableTracksViewportHeight(Unknown Source)
     at javax.swing.ScrollPaneLayout.layoutContainer(Unknown Source)
     at java.awt.Container.layout(Unknown Source)
     at java.awt.Container.doLayout(Unknown Source)
     at java.awt.Container.validateTree(Unknown Source)
     at java.awt.Container.validate(Unknown Source)
     at javax.swing.RepaintManager.validateInvalidComponents(Unknown Source)
     at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
     at java.awt.event.InvocationEvent.dispatch(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForFilter(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)or sometimes I get:
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
     at java.util.Vector.elementAt(Unknown Source)
     at javax.swing.table.DefaultTableColumnModel.getColumn(Unknown Source)
     at javax.swing.JTable.convertColumnIndexToModel(Unknown Source)
     at javax.swing.JTable.isCellEditable(Unknown Source)
     at javax.swing.table.DefaultTableCellRenderer.getTableCellRendererComponent(Unknown Source)
     at javax.swing.JTable.prepareRenderer(Unknown Source)
     at javax.swing.plaf.basic.BasicTableUI.paintCell(Unknown Source)
     at javax.swing.plaf.basic.BasicTableUI.paintCells(Unknown Source)
     at javax.swing.plaf.basic.BasicTableUI.paint(Unknown Source)
     at javax.swing.plaf.ComponentUI.update(Unknown Source)
     at javax.swing.JComponent.paintComponent(Unknown Source)
     at javax.swing.JComponent.paint(Unknown Source)
     at javax.swing.JComponent.paintToOffscreen(Unknown Source)
     at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
     at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
     at javax.swing.RepaintManager.paint(Unknown Source)
     at javax.swing.JComponent._paintImmediately(Unknown Source)
     at javax.swing.JComponent.paintImmediately(Unknown Source)
     at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
     at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
     at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
     at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
     at java.awt.event.InvocationEvent.dispatch(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source) It seems that the resetting part is the one that causes the errors to arise because when I comment it out everything works smooth so I'm guessing it might have to do with the layout manager(I tried to use several even without any LM and still nothing).
Meanwhile I switched to JList and things are ok. Still I'm very curios why this is happening and how I could fix it.
Any idea will be highly appreciated!
Thank you,
Ariel

Answer 1

After wrapping setModel with SwingUtilities.invokeLater() (as Darryl sugested), it seems to work fine.
I haven't received those random errors up to now (it's been two days). Hope they won't appear anymore.
Thanks, Darryl.