List<SelectItemOption<String>> comboBoxItemOptions = new ArrayList<SelectItemOption<String>>();
comboBoxItemOptions.add(new SelectItemOption<String>(("VI")));
comboBoxItemOptions.add(new SelectItemOption<String>(("UK")));
comboBoxItemOptions.add(new SelectItemOption<String>(("FR")));
inputSet.addUIFormInput(new UIFormComboBox(COMBOBOX, COMBOBOX, comboBoxItemOptions));
}