A DESCRIPTION OF THE PROBLEM :
There is a minor content error in the description of the first paragraph of the documentation for MonthDay.
(See faulty url for details).

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
MonthDay is an immutable date-time object that represents the combination of a year and month. Any field that can be derived from a month and day, such as quarter-of-year, can be obtained.
ACTUAL -
MonthDay is an immutable date-time object that represents the combination of a year and month. Any field that can be derived from a month and day, such as quarter-of-year, can be obtained.

URL OF FAULTY DOCUMENTATION :
https://docs.oracle.com/javase/8/docs/api/java/time/MonthDay.html