Would someone on Windows please do the following
and attach the two outputs to the new issue:
http://issues.apache.org/jira/browse/FOR-889

This causes Ant to be verbose. Not the verbosity setting
of Catalog Entity Resolver that i was looking for, but it
should give some info about what ant is doing.

-------------
cd my-new-directory
forrest seed
forrest -v validate-xdocs
-------------

Now upgrade the Resolver ...
mv tools/ant/lib/xml-commons-resolver-1.1.jar /tmp                              
            
cp lib/core/xml-commons-resolver-1.2-dev-r395116.jar tools/ant/lib

Then do the 'forrest -v validate-xdocs' again.

-David