This occurs in JFileChooser in GTK L&F. When the string representing the path to the selected directory is longer than what can be fit in the JFileChooser window, the string tries to appear below the 'Selection:' label and overlaps with the text field below. If the filechooser is resized horizontally, the string appears next to the 'Selection:' label.

Please see the attached image. Note the selected path - string getting cut by the text field.

To reproduce:
1. Select JFileChooser demo in SwingSet2
2. Switch to GTK look and feel and navigate to a folder lower down the hierarchy.