@SuppressWarnings("HardCodedStringLiteral")
  private void processListSelection(final KeyEvent e) {
    if (togglePopup(e)) return;

    if (!isPopupShowing()) return;

    final InputMap map = myPathTextField.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
    if (map != null) {
      final Object object = map.get(KeyStroke.getKeyStrokeForEvent(e));
      if (object instanceof Action) {
        final Action action = (Action) object;
        if (action.isEnabled()) {
          action.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "action"));
          e.consume();
          return;
        }
      }
    }

    final Object action = getAction(e, myList);

    if ("selectNextRow".equals(action)) {
      if (ensureSelectionExists()) {
        ListScrollingUtil.moveDown(myList, e.getModifiersEx());
      }
    } else if ("selectPreviousRow".equals(action)) {
      ListScrollingUtil.moveUp(myList, e.getModifiersEx());
    } else if ("scrollDown".equals(action)) {
      ListScrollingUtil.movePageDown(myList);
    } else if ("scrollUp".equals(action)) {
      ListScrollingUtil.movePageUp(myList);
    } else if (getSelectedFileFromCompletionPopup() != null
        && (e.getKeyCode() == KeyEvent.VK_ENTER || e.getKeyCode() == KeyEvent.VK_TAB)
        && e.getModifiers() == 0) {
      hideCurrentPopup();
      e.consume();
      processChosenFromCompletion(e.getKeyCode() == KeyEvent.VK_TAB);
    }
  }
 private boolean isKeyReserved(KeyEvent e) {
   return fb.getActionForKeyStroke(KeyStroke.getKeyStrokeForEvent(e)) != null;
 }