"ivan.tufegdzic" wrote : Change method in cart in isEmpty without get and in 
page rendered="#{cart.empty}"
  | But I think that you should delete that and put rendered="{not empty 
cartList}"

{not empty cartList} works with no exception , thanks again. 

However, when I add some items and then remove them all, the table header is 
still being displayed. It is not being displayed before that, though, so 
"rendered" is working. But does not recognize empty list after some operations. 

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