hg: jdk8/tl/jdk: 8025610: Add explicit @throws NPE documentation to Optional constructor and Optional.of

[mike . duigou]

Changeset: d921ce805abe
Author:    mduigou
Date:      2013-09-27 17:27 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/d921ce805abe

8025610: Add explicit @throws NPE documentation to Optional constructor and 
Optional.of
Reviewed-by: briangoetz, chegar, alanb

! src/share/classes/java/util/Optional.java