JBoss Tattletale

http://www.jboss.org/tattletale

run it like this:

cd C:\downloads\tattletale-1.1.1.Final
java -Xmx512m -jar tattletale.jar C:/Projects/acme c:/temp/bla

It's really impressive the amount of information that this tool manages to gather...

jar versions, dependencies, classes.... you name it, you find it in the report.