In GTK LAF , JFileChooser's component alignments and spacing is unlike the native mercury.
1) The vertical scrollbar for Folder List in JFileChooser start below the Title Label 'Folder' unlike Native File Dialog.
2) The Title Label of 'Folder' and 'File' is outside the JList, unlike the Native File Dialog.
3) The width of 'Folder' and 'File' list box is not same, unlike the Native FileDialog.
4) The size of buttons 'New Folder', 'Delete File' and 'Rename File' and the spacing is unlike the Native file dialog.
5) 'Cancel' and 'Ok' Button are not of same size unlike the native File Dialog.
6) Space between the 'OK' button and the right and bottom decoration is unlike the native filedialog.