A DESCRIPTION OF THE PROBLEM :
In the javadoc for the class java.time.format.DateTimeFormatter, the example that reads:
String text = date.toString(formatter);
should read:
String text = date.format(formatter);


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
String text = date.format(formatter);

ACTUAL -
String text = date.toString(formatter);

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