A DESCRIPTION OF THE PROBLEM :
The API page refers to "combination of a year and a month", when it should be "a month and a day".

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
"MonthDay is an immutable date-time object that represents the combination of a month and day."
ACTUAL -
"MonthDay is an immutable date-time object that represents the combination of a year and month."

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