Oracle and the Social Security Administration have reported problems with
keyboard navigation in applets running under JRE 1.4.1. This is a regression
from JRE 1.3.1. To reproduce, start appletviewer or load Internet Explorer with
demo\jfc\SwingSet2\SwingSet2.html. Click on a button in the taskbar and hit the
tab key. The focus should change to the next button in the taskbar but does
not. Right arrow will move the focus but it is not possible to navigate to
the tabbed pane below the taskbar. This all works OK in JRE 1.3.1. This is a
serious regression because it makes it impossible for many customers with
disabilities to use Java applications in web browsers.