Calendar.getTime() or get() returns wrong value in "ar" locales
after Calendar.set(Calendar.WEEK_OF_YEAR) or set(Calendar.WEEK_OF_MONTH)
is used.

For example,
    Calendar c = Calendar.getInstance();
    c.set(Calendar.YEAR, 1997);
    c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
    c.set(Calendar.MONTH, Calendar.JUNE);
    c.set(Calendar.WEEK_OF_MONTH, 1);
  c.getTime() returns May 27, 1997. (Expected date is Jun 3, 1997)

    Calendar c = Calendar.getInstance();
    c.set(Calendar.YEAR, 1997);
    c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
    c.set(Calendar.WEEK_OF_YEAR, 1);
  c.getTime() returns Dec 24, 1996. (Expected date is Dec 31, 1996).

On the other hand,
    Calendar c = Calendar.getInstance();
    c.set(Calendar.YEAR, 1997);
    c.set(Calendar.MONTH, Calendar.MAY);
    c.set(Calendar.DATE, 27);
  c.get(Calendar.WEEK_OF_MONTH) returns 5. (This is correct.)
  c.get(Calendar.WEEK_OF_YEAR) returns correct value as well.