Instead to find where org.w3c.dom comes from I've been using this script:
mvn dependency:copy-dependencies -DincludeScope=test -DoutputDirectory=deps
for i in deps/*.jar; do if unzip -l $i| grep -q org.w3c.dom; then echo $i; fi ; done
entr (http://entrproject.org/) provides a more friendly interface to inotify (and also supports *BSD & Mac OS X).
It makes it very easy to specify multiple files to watch (limited only by ulimit -n), takes the hassle out of dealing with files being replaced, and requires less bash syntax:
$ find . -name '*.py' | entr ./myfile.py