FULL PRODUCT VERSION :
java version "1.6.0_14"
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing)


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

EXTRA RELEVANT SYSTEM CONFIGURATION :
Windows PLAF

A DESCRIPTION OF THE PROBLEM :
JavaDocs for TreeSelectionEvent.getNewLeadSelectionPath say: "Returns the current lead path.". Actually at runtime it happens that the method does not return a lead path, but returns null. To prevent NullPointerExceptions, JavaDocs should mention the method can return null.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JavaDocs should say that the result can be null.
ACTUAL -
JavaDocs do not say that the result can be null.

REPRODUCIBILITY :
This bug can be reproduced always.