updateElements(fWorkingSetModel.getActiveWorkingSets());
updateElements();
		public void resourceChanged(IResourceChangeEvent event) {			IResourceDelta delta= event.getDelta();			IResourceDelta[] affectedChildren= delta.getAffectedChildren(IResourceDelta.ADDED | IResourceDelta.REMOVED, IResource.PROJECT);			if (affectedChildren.length > 0) {				updateElements(fWorkingSetModel.getActiveWorkingSets());			} else {				affectedChildren= delta.getAffectedChildren(IResourceDelta.CHANGED, IResource.PROJECT);				for (int i= 0; i < affectedChildren.length; i++) {					IResourceDelta projectDelta= affectedChildren[i];					if ((projectDelta.getFlags() & IResourceDelta.DESCRIPTION) != 0) {						updateElements(fWorkingSetModel.getActiveWorkingSets());						// one is enough						return;					}				}			}		}