FULL PRODUCT VERSION :
Java(TM) SE Runtime Environment (build 1.6.0-b105)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The javadoc for ElementIterator is missing a PRE tag in the source example.
http://java.sun.com/javase/6/docs/api/javax/swing/text/ElementIterator.html

REPRODUCIBILITY :
This bug can be reproduced always.