ComboBoxItem handlerTypeItem = new ComboBoxItem("type", Console.CONSTANTS.subsys_logging_type());
formDeckPanel.addComboBox(handlerType.getDisplayName(), handlerTypeItem);
handlerTypeItem.setValueMap(HandlerType.getAllDisplayNames());
handlerTypeItem.setValue(handlerType.getDisplayName());
handlerTypeItem.addValueChangeHandler(new ValueChangeHandler<String>() {
@Override
public void onValueChange(ValueChangeEvent<String> event) {
formDeckPanel.showWidget(event.getValue());
}
});