Microsoft added 9 new locales as an add-on hotfix to their Windows XP SP2 as follows:

http://support.microsoft.com/?kbid=897338

Those locales include:

# Bosnian (Cyrillic, Bosnia and Herzegovina)
# Filipino (Philippines)
# Frisian (Netherlands)
# Inuktitut (Latin, Canada)
# Irish (Ireland)
# Luxembourgish (Luxembourg)
# Mapudungun (Chile)
# Mohawk (Mohawk)
# Nepali (Nepal)
# Pashto (Afghanistan)
# Romansh (Switzerland)

Windows JRE needs to detect these locales and should set its default locale properly.
These new locales are known as "Elk v2".