SelectOptions<Produce> fruitOptions = new SelectOptions<Produce>( "fruits", fruitCollection, new FruitRenderer()); SelectOptions<Produce> vegetableOptions = new SelectOptions<Produce>( "vegetables", vegetableCollection, new VegetableRenderer()); Select select = new Select("produceSelect", new PropertyModel<Produce>(model, "favProduce")); select.add(fruitOptions); select.add(vegetableOptions);