How to get all values​​ from ListSelect （not null）?

Vaadin 6 / 7 / 8
1

I used the iterator

while (list.getItemIds (). iterator (). hasNext ()) {
s.append (list.getItem (list.getItemIds (). iterator (). next ()). getItemProperty (“zhengzhuang”). getValue ());

          } / / (StringBuffter s)


Tip: java memory overflow!

Thanks ！

2

Oh, StringBuffer caused ！