* panel, such as start, end, kill nodes
*/
public void initWidget() {
if (wrkflowtable == null) {
wrkflowtable = new WrkflowPropertyTable(null);
((OozieDiagramController) controller).setWrkflowPropertyTable(wrkflowtable);
}
// display Start/End/Kill Nodes as default
if (start == null) {