handleExpandableTasks(supplyTasks_.getChangedList());
    public void update() {	if ((inventoryPlugIn_.getDetermineRequirementsTask() == null) ||	    !needUpdate()) {	    return;	}	super.update(); // set up dates	handleExpandableTasks(supplyTasks_.getAddedList());	handleExpandableTasks(supplyTasks_.getChangedList());	handleExpandableTasks(projectionTasks_.getAddedList());	handleExpandableTasks(projectionTasks_.getChangedList()); 	updateSupplyResults(supplyExpansionElements_.getAddedList());	updateSupplyResults(supplyExpansionElements_.getChangedList());	// 	updateProjectionResults(projectExpansionElements_.getAddedList());	updateProjectionResults(projectExpansionElements_.getChangedList());    }