Constant Debug Log errors:Error in MediaServerConnection of :java.io.EOFException

[WellThen]

I am trying to track down some performance problems with my Sage server, and when I turned on debug logging, I noticed that the log is full of errors like this:

Sat 11/16 21:19:56.309 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:56.522 [MediaServerConnection@6ed7] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:56.736 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:56.948 [MediaServerConnection@6ed7] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:57.161 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:57.374 [MediaServerConnection@6ed7] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:57.590 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:57.806 [MediaServerConnection@c1b453] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:58.020 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:58.484 [MediaServerConnection@c1b453] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:58.700 [MediaServerConnection@1f54815] Error in MediaServerConnection of :java.io.EOFException
Sat 11/16 21:19:58.915 [MediaServerConnection@c1b453] Error in MediaServerConnection of :java.io.EOFException

Any idea what would cause this? I've tried removing all of my Media Import folders, on the chance that this is somehow related to problems accessing shares on another machine. Other than that, I don't know what to try next. I found one old thread where someone had this problem because he was still running a Sage 6 client, but all of my clients were upgraded to Sage 7.1.9 long ago.