Why does the useragent Java keep requesting the file "/¦.txt"?

I keep finding 404 errors from different IPs requesting the file '/¦.txt'

[KenB]

I keep seeing 404 errors from different IP addresses reporting various versions of the UA Java requesting the file '/¦.txt' (without quotes). Does anybody know what is up with this?

I've tried searching for this topic, but funny enough search engines don't index the characters '/' or '¦' in their indexes so I can't find matches for "/¦.txt". I'm seeing about ten to twenty requests for this file each day and it has me really puzzled.

[tedster]

Some answers about the user agent in this thread. Apparently used only by writers of custom spiders -- so who knows why that filename is being requested.

[webmasterworld.com...]

[KenB]

Maybe what I will do is ban UA Java and IP address combinations that request this file. My hunch is it is some sort of spammer or someone up to no good.