There are a couple of problem about the JList:

(1)Currently, ctrl-A select the last item of the list without scrolling down to the button of the list. User can't see the item is selected. It should either scroll down to the place the item is selected or just select the first one item of the list.
(2) Up/Down arrow, do not work for the JList when the list item got focus.
(3) Mnemonic doesn't work for the JList.

2 and 3 will work after I use Ctrl-A to put the focus into the JList or any mouse clicking in the window. But without these action, 2 and 3 do not work.

Please also see the bug 4509668, 4509665