This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I have a selection window build from a list in the actionForm. To make a selection from this list multiple ids are needed which are contained in the list. So, after a selection is made (hidden radio in table row) the ids are retrieved from the list based on the index (selected row).
The problem is that multiple selection windows can exist for an user, so with every last request the list is reset with backend data. So, opening first window with 10 results and then a second with 5 results will give a indexOutOfBoundException if the 10th row is selected of the first window.