Folder list of the JFileChooser is allowing multiple selection unlike native file dialog. Where as the file list does not allow multiple selection.

Steps to reproduce:
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1) Run SwingSet2 on Mercury with -Dswing.gtkthemefile=<Your .gtkrc File>. Change the Look And Feel to GTK.
2) Go to FileChooser Demo.
3) Tab to Folder List
4) Press CTRL+A. It will select all the items in the list.
5) Now Tab to file list and press ctrl+A, it will not select all the items.
6) Now Open Gedit.
7) Click Open.
8) Repeat the steps 3 to 5. Behaviour for the native will be opposite to its Java counterpart.