FULL PRODUCT VERSION :
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows ver 8.1

A DESCRIPTION OF THE PROBLEM :
Please find the code snippet -

for(int i=1;i<=5;i++)
{
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -i);
System.out.println(cal.getTime());
SimpleDateFormat format = new SimpleDateFormat("MMM d, YYYY");
System.out.println(format.format(cal.getTime()));

}

Output : -

Tue Jan 02 15:40:15 IST 2018
Jan 2, 2018
Mon Jan 01 15:40:15 IST 2018
Jan 1, 2018
Sun Dec 31 15:40:15 IST 2017
Dec 31, 2018
Sat Dec 30 15:40:15 IST 2017
Dec 30, 2017
Fri Dec 29 15:40:15 IST 2017
Dec 29, 2017


As evident, the SimpleDateFormat is converting 31 Dec 2017 to 31 Dec, 2018

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :

Please find the code snippet -

for(int i=1;i<=5;i++)
{
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -i);
System.out.println(cal.getTime());
SimpleDateFormat format = new SimpleDateFormat("MMM d, YYYY");
System.out.println(format.format(cal.getTime()));

}

Output : -

Tue Jan 02 15:40:15 IST 2018
Jan 2, 2018
Mon Jan 01 15:40:15 IST 2018
Jan 1, 2018
Sun Dec 31 15:40:15 IST 2017
Dec 31, 2018
Sat Dec 30 15:40:15 IST 2017
Dec 30, 2017
Fri Dec 29 15:40:15 IST 2017
Dec 29, 2017



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Dec 31, 2017 after using SimpleDateFormat class
ACTUAL -
Dec 31, 2018 ( 2018 instead of 2017 )

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
for(int i=1;i<=5;i++)
{
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -i);
System.out.println(cal.getTime());
SimpleDateFormat format = new SimpleDateFormat("MMM d, YYYY");
System.out.println(format.format(cal.getTime()));

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

SUPPORT :
YES