*/
private void initialize() {
this.setLayout(new GridBagLayout());
configTree = new DragAndDropJTree();
configTree.addListener(new IDropListener() {
@Override
public void dropped(List<?> droppedSelection, Object target) {
if (controller != null) {
controller.notifyDrop(castToATreeNodesList(droppedSelection), (ATreeNode) target);
}