A DESCRIPTION OF THE PROBLEM :
Poland is a " Republic of Poland " , not (like in comment in LocaleISOData:405) " Polish People's Republic " . Polish People's Republic ends in year 1989. From 1989 Poland is Republic of Poland.
Bug first seen in Oracle JDK6, now in Oracle JDK7 still exists.
For more information feel free to contact me.
EXPECTED VERSUS ACTUAL BEHAVIOR :
Republic of Poland
Polish People's Republic
URL OF FAULTY DOCUMENTATION :