a lovely error message

I'm playing with hudson, an extensible continuous integration engine. One of its optional tasks is to archive build artifacts. Using the ant syntax, I told it to archive everything named *.war in the dist directory. When I entered that string into its lovely ajax configuration page, Hudson immediately informed me of a problem:
'dist/**/*.war' doesn't match anything: even 'dist' doesn't exist
The best part of this error message is "even 'dist' doesn't exist."
I could explain what's so cool about this, but if you don't know now, you'll never care, even if I do explain it. If you do see what's cool about it, go check out hudson.