private void updateNavItem() {
service.getNavItems(
null,
new AsyncCallback<List<String>>() {
@Override
public void onFailure(Throwable caught) {
System.out.println("Could not retrieve nav items");
}
@Override
public void onSuccess(List<String> result) {
System.out.println("Received nav " + result.size() + " items");
Iterator<String> it = result.iterator();
navigation.clear();
while (it.hasNext()) {
navigation.addItem(it.next());
}
}
});
}
