source.addAll(Arrays.asList(AUTOCOMPLETE_SOURCE));
// Autocomplete field
final Autocomplete<String> autocompleteField = new Autocomplete<String>("autocompleteField", autocompleteFieldModel);
autocompleteField.setAutoFocus(true);
autocompleteField.setSource(new AutocompleteSource(source));
autocompleteField.setLabel(Model.of("Autocomplete on months"));
form.add(autocompleteField);
// Month model label
form.add(new Label("monthLabel", autocompleteFieldModel));