ADDITIONAL SYSTEM INFORMATION :
MacOs (Linux and Windows had been OK)

A DESCRIPTION OF THE PROBLEM :
On Day 20241229
new SimpleDateFormat("YYYY-MM-dd", new Locale("this_invalid_locale")).format(new java.util.Date()) returned "2025-12-29", which is the wrong year

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
2024-12-29
ACTUAL -
2025-12-29



FREQUENCY : occasionally