JTable - losing focus on keystroke

Question

hello the following code is supposed to create a new table row when the TAB key is pressed while being at the last cell of the JTable.
table.setSurrendersFocusOnKeystroke(false);     
            InputMap imap = table.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
            imap.put(KeyStroke.getKeyStroke(10, 0), "_navigate");
            imap.put(KeyStroke.getKeyStroke(9, 0), "_navigate");
            table.getActionMap().put("_navigate", new NavigateAction());
     private class NavigateAction extends AbstractAction{
          public NavigateAction(){
               super();
          public void actionPerformed(final ActionEvent e)
               int allRows=table.getRowCount()-1;
               int allCols=table.getColumnCount()-1;
               int atRow=table.getSelectedRow();
               int editCol=table.getEditingColumn();
               if(allRows==atRow && allCols==editCol &&(editCol==-1 || editCol==allCols))
                    runActionAddRow();     // add a row if the cell positionned at is the last cell of the last row
             Action action = table.getActionMap().get("selectNextColumnCell");     // move on to the next cell
             e.setSource(table);
             action.actionPerformed(e);
             SwingUtilities.invokeLater(new Runnable(){
                  public void run(){
                     Action action = table.getActionMap().get("startEditing"); // start editing the next cell
                     e.setSource(table);
                     action.actionPerformed(e);
     }it works but what i am not able to resolve is that each time the focus moves to the next component in the frame and then returns to the JTable before the desired action takes place.
any help on this is much appreciated.
thanks

Answer 1

Thanks JJMack.  I was hoping it wasn't the card I was using.  This is the first time I've used a geforce card on my work PC.  However it's not the first time I've used them with Adobe's apps.  For years my personal PCs had them and usually without issues like this.  We chose to attempt to use this new Geforce GTX980 card because of how much further advanced it is over midrange Quadro cards at the moment, and because of some of the other software I am using that is more viewport and video ram dependent.  Adobe applications are still my mainstay but we couldn't justify the purchase of older technology midrange K4000 cards that were supposedly newer than my older 4000.  As these still had older PCI connections than the HP workstations we built, among other tech such as cuda core amounts that are drastically behind the times.  Jumping up to 6000 level Quadro cards for up to date technology just isn't in the budget as the prices are astronomical. As with the Titan cards cards that are high priced and yet older tech.  So we made the decision to try the GTX card for a while.  Right now this sporadic window focus issue seems to be the only new issue I've run into so far.   I'm sure I will see more in the near future doing something if the card is the issue.  Maybe the new types of hardware being used such as the PCI express hard drive, or very recent photoshop updates can be blamed.  Just not figuring it out just yet.
I was informed by an IT professional here that has application creation experience that this truly seemed like an application problem more than a graphic card problem.   But until someone can corroborate that thought I guess I'm going to keep blaming the newer GTX card or wait to see if an App update makes this go away quietly.  No one else has chimed in yet.  Thanks for the link.