FULL PRODUCT VERSION :
Java version number: 1.4.2_07
Java VM version: 1.4.2_07-b05
tested also with
java.version=1.5.0_05

ADDITIONAL OS VERSION INFORMATION :
os.version=5.2

A DESCRIPTION OF THE PROBLEM :
Calendar.getInstance().getFirstDayOfWeek() returns SUNDAY for HR_HR locale

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
set default locale to HR_HR
get first day of week from Calendar.getInstance()

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
is returning SUNDAY but it should be MONDAY

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
 Locale.setDefault(new Locale("HR", "HR"));
System.out.println("HR_HR = " + Calendar.getInstance().getFirstDayOfWeek());
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
no workaround