@Override
    public void setSelectedItem(Object anObject) {
      if (!(anObject instanceof JdkComboBoxItem)) return;
      if (!(anObject instanceof InnerComboBoxItem)) return;
      SdkListItem innerItem = ((InnerComboBoxItem)anObject).getItem();
      if (!myInnerModel.getItems().contains(innerItem)) return;
      mySelectedItem = (JdkComboBoxItem)anObject;
      fireContentsChanged(this, -1, -1);
    }
@Override
    public void setSelectedItem(Object anObject)