Socket closed Error

[nop277]

I've been having an error come up repeatedly. Here's the error log:

2013-01-13 23:44:49 [iNFO] [sTDERR] java.net.SocketException: Socket closed

2013-01-13 23:44:49 [iNFO] [sTDERR]    at java.net.SocketOutputStream.socketWrite(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at java.net.SocketOutputStream.write(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at org.bouncycastle.crypto.io.CipherOutputStream.write(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at java.io.BufferedOutputStream.flushBuffer(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at java.io.BufferedOutputStream.flush(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at java.io.DataOutputStream.flush(Unknown Source)

2013-01-13 23:44:49 [iNFO] [sTDERR]    at ci.run(SourceFile:120)

2013-01-13 23:44:49 [iNFO] [Minecraft] nop277 lost connection: disconnect.quitting

It doesn't come up enough to cause too make the server unplayable but can be quite annoying at times. I can tell when it shows up because the game starts acting glitchy, I won't be able to open chests and other things. Some more extreme events it takes several reboots of the server to get working again, and has even led to glitches like items getting multiplied when I log in again. It feels like a network error to me but I have checked all the usual suspects (even made sure the port was forwarded, even though I am doing it LAN so that shouldn't matter). I also have previously ran another server (tekkit classic) under the same setup and it worked fine. This is tekkit lite and it has a couple mods I added as well (thaumcraft 3 and millenaire being the big ones, plus some small IC2 plugins). Any help would be appreciated