You will need to include some options to run this program.
The xmx is to increase memory so that you don't blow up. If you only do a few dozen locales, you don't need to set it that high.
-f regex // to only check locales matching the regex, like ".*" or "en|fr|de" ...
-DSHOW_FILES // shows files being opened and created
-DSHOW // TBD
-DCLDR_UTIL_DATA=/Users/markdavis/Documents/workspace35/cldr-svn2/tools/java/org/unicode/cldr/util/data/ // set if not predictable