Yah. The, the search is case sensitive. You are searching for MANIFEST and the title of the entry is MANIFEST but the file has the string "Manifest" :)which should result in matches for all jars, because every jar that Maven uses, has a manifest contains the string "Manifest-Version: 1.0". But I get no hits, and the execution is so fast, that I suspect that the matcher is not actually working on anything for some reason. Since you pass a closure with a reference to the regex as the function to THEREADS:MAKE-THREAD, trying to TRACE stuff doesn't seem to work so well.I need to spend more time with the matcher to understand why I am not generating any hits. Any ideas on your end?