Bundle: j2sdk-1_4_0-fcs-bin-b92-win-30_jan_2002.exe
j2sdk-1_4_0-fcs-bin-b92-solx86-30_jan_2002.sh

Platform: generic
OS: generic
Language: C (POSIX), English, French, Spanish

Swing test:
merlin-fcs-testspec.html - 4.4.26 - 4.4.30

Linguistic/SwingSet tests:

Message Dialog
Warning Dialog
Confirmation Dialog
Input Dialog
Component Dialog

At all these tests there are only rectangles instead of the characters. I tested this on Windows 98 Es, Fr, Windows 2000 Eng, Solaris 8 C (POSIX) locale and it appears on all these configurations.
Please see attached snapshots.