According to http://lists.jboss.org/pipermail/jboss-cvs-commits/2007-September/042676.html, it's in
Does that help?
(BTW, I found that via google with "site:jboss.org ServiceLocatorException": http://www.google.com/search?hl=en&q=site%3Ajboss.org+servicelocatorexception)
The next step would then be to do something like ...
for j in $(find /where/you/have/stuff/installed -name "*.jar"); do echo $j; unzip -l $j | grep ServiceLocatorException; done
... to find the jar w/ that class in it.