@Override
      public void actionPerformed(ActionEvent e) {
        if (!myNotifyCaughtCheckBox.isSelected() && !myNotifyUncaughtCheckBox.isSelected()) {
          Object source = e.getSource();
          JCheckBox toCheck = null;
          if (myNotifyCaughtCheckBox.equals(source)) {
            toCheck = myNotifyUncaughtCheckBox;
          }
          else if (myNotifyUncaughtCheckBox.equals(source)) {
            toCheck = myNotifyCaughtCheckBox;
          }
          if (toCheck != null) {
            toCheck.setSelected(true);
          }
        }
      }
@Override
      public void actionPerformed(ActionEvent e)