Catching TAB event

Hi all,

I have a JPanel with a JFormattedTextField inside of it. This field is
suposed to receive just dates on it, so I have this method to auto
complete the date when I type something.

 private void setDateFieldListeners(final SimpleDateFormat dateFormat)
{
      addPropertyChangeListener(new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent e) {
          if (e.getPropertyName() == "value") {
            try {
              Date date =
dateFormat.parse(FormattedDateField.this.getText());
              if (date != null && DateUtil.getYear(date) < 1000) {
                date = DateUtil.addYears(date, 2000);
                FormattedDateField.this.setValue(date);
              }
            }
            catch (ParseException p) {
            }

          }
        }
      });
      addKeyListener(new KeyListener() {
        public void keyPressed(KeyEvent ev) {
        }
        public void keyTyped(KeyEvent ev) {
        }
        public void keyReleased(KeyEvent ev) {
          int code = ev.getKeyCode();
          if (code == KeyEvent.VK_BACK_SPACE ||
              code == KeyEvent.VK_DELETE) {
            return;
          }
          String date = FormattedDateField.this.getText();
          String format = dateFormat.toPattern();
          int firstBarIndex = format.indexOf("/");
          int firstToSecondBar = -1;
          if (firstBarIndex != -1) {
            String auxString = format.substring(firstBarIndex + 1);
            firstToSecondBar = auxString.indexOf("/");
          }
          if ((date.matches("^[0-9]{" + firstBarIndex + "}") &&
                 date.indexOf("/") == -1) ||
               (firstToSecondBar!=-1 &&
                 date.matches("^[0-9]{1,}/[0-9]{" + firstToSecondBar +
"}"))) {
            FormattedDateField.this.setText(date + "/");
            return;
          }
        }
      });
    }

This JPanel is inserted on another panel, and I want the auto complete
to happen only when I leave the field.
I've tried adding a KeyListener to it, so I could filter the auto-
complete to happen only when VK_TAB is received, but it seems that
java doesn't catches TABs unless I set FocusTraversalKeysEnabled to
false (which I don't want to).
I also tried to catch it by overriding the method
getFocusTraversalKeys like that:

public Set getFocusTraversalKeys (int id) {
    if (id==KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS ||
        id==KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS) {
      //autocomplete
    } return super.getFocusTraversalKeys(id);
  }

This also seems not to work, cuz any key I press, this method is
called 3 times, receiving 0, 1 and 2 as id and
KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS is 0.

I have also tried adding a FocusListener to it, so I could capture the
event of loosing focus, but no success.

I tried also to do this:
http://www.exampledepot.com/egs/javax.swing.text/ta_OverrideTab.html?l=rel

And if I set the FocusTraversalKeysEnabled to false, it doesn't
traverse at all, and if I don't, the traverse event doesn't pass
through the actions.

Does anybody has another idea on catching the TAB?