protected void addComponentFactoriesForScalar(final List<ComponentFactory> componentFactories) {
componentFactories.add(new ReferencePanelFactory());
componentFactories.add(new BooleanPanelFactory());
componentFactories.add(new BytePanelFactory());
componentFactories.add(new ShortPanelFactory());
componentFactories.add(new IntegerPanelFactory());
componentFactories.add(new LongPanelFactory());
componentFactories.add(new CharacterPanelFactory());
componentFactories.add(new FloatPanelFactory());