ADDITIONAL SYSTEM INFORMATION :
MacOS Ventura 13.0
64-Bit Server VM (build 19.0.1+10-21, mixed mode, sharing)

A DESCRIPTION OF THE PROBLEM :
DateTimeFormatter.ofPattern("MMM") outputs the incorrect length for the month of September. expected is 3 characters in length, but java 19 outputs 4 characters (Sept). All other months are correctly 3 characters in length.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
output the month for September using DateTimeFormatter.ofPattern("MMM")
expected "Sep", but result is "Sept"
all other months are correct except September

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
ACTUAL -
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec

---------- BEGIN SOURCE ----------
public class Test {
    public static void main(String[] args) {
        LocalDate localDate = LocalDate.now();
        DateTimeFormatter monthFormatter = DateTimeFormatter.ofPattern("MMM");
        // outputs correctly except for September (Sept instead of Sep)
        for (int i = 1; i <= 12; i++)
            System.out.println(localDate.withMonth(i).format(monthFormatter));

	}
}
---------- END SOURCE ----------

FREQUENCY : always