A DESCRIPTION OF THE PROBLEM :
In the javax.swing.TransferHandler.DropLocation class description, there is an
unbalanced comma.

(Other new documentation for 1.6 should be checked too. I noticed another
occurrence of this error. (Sorry, I don't recall where, except that is was in
something marked with "@since 1.6".))

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
"Developers typically shouldn't create instances of, or extend, this class. "
ACTUAL -
"Developers typically shouldn't create instances of, or extend this class. "

URL OF FAULTY DOCUMENTATION :
http://download.java.net/jdk6/docs/api/javax/swing/TransferHandler.DropLocation.html