If you have two jars in your classpath that contain different versions of the same class, the classpath order becomes critical.

I am looking for a tool that can detect and flag such potential conflicts in a given classpath or set of folders.

Certainly a script that starts:

classes=`mktemp`
for i in `find . -name "*.jar"`
do
    echo "File: $i" > $classes
    jar tf $i > $classes
    ...
done

with some clever sort/uniq/diff/grep/awk later on has potential, but I was wondering if anyone knows of any existing solutions.