From 4501585:
13) open the native windows file chooser, select the "details" view, look
    at the labels on the first row (Name, Dimension, Type, etc)

    now open JFileChooser, select details view, look at the first row of
    the filenames table: the labels are horizontally CENTERED, however
    under windows 2000 they're LEFT aligned.

This is reproducible in 1.4.2 on Win2k, but is correct on XP.