java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b60)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b60, mixed mode)

Bug Description:

Can't open Windows with a German locale installed.
Instantiating a JWindow throws an exception.

File sun/awt/resources/awt_de.properties in rt.jar contains the following
two lines:
   AWT.backwardDefaultFocusTraversalKey=Umsch Tab,Strg Umsch Tab
   AWT.forwardDefaultFocusTraversalKey=Tab,Strg Tab

java.awt.KeyboardFocusManager.loadFocusTraversalKeys(String, String, Set)
uses these list values to request java.awt.AWTKeyStroke instances
for each token, using java.awt.AWTKeyStroke.getAWTKeyStroke(String).

"Umsch Tab", "Strg Umsch Tab", etc. do not comply with the syntax required
in #getAWTKeyStroke(String). The method expects modifies like
shift | control | ctrl | meta | alt | button1 | button2 | button3

Removing the two lines in the awt_de.properties works around the problem.