updateDisplay.runNow();
	private void actionPerformedSetEndPoint(ActionEvent e) {		Vertex v = ((PNode) _lastItemClicked.getEntity()).v();		if(v.equals(_apspSource)) {			_ctl.getView().errorPopup("Path Error",					"You picked the same node " + _apspSource.id() + " to be the source and destination.",					null);			return;		}				Path p = _g.shortestPath(_apspSource, v);				if(p == null) {			_ctl.getView().errorPopup("Path Error",					"There is no path from " + _apspSource.id() + " to " + v.id() + ".",					null);			return;		}		clearHighlightedPaths();		highlightPath(p);	}