@Override
  protected boolean isFocused(Component c) {
    if (c instanceof JComboBox<?> comboBox) {

      if (!comboBox.isEnabled()) {
        return false;
      }

      if (comboBox.isEditable()) {
        ComboBoxEditor ed = comboBox.getEditor();
        Component editorComponent = ed.getEditorComponent();
        Component focused = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();

        return focused != null && editorComponent != null && SwingUtilities.isDescendingFrom(focused, editorComponent);
      }
      else {
        return comboBox.hasFocus();
      }
    }
    return false;
  }
@Override
  protected boolean isFocused(Component c)