[SEVERE] java.io.EOFException

Started getting this error a while ago, never really affected my server's performance, but it is really annoying to have filling up my cute little box. I'm running #1060 right now, but I'm not sure that it didn't happen in #1000. Are there any fixes?

Code:

12:10:05 [SEVERE] java.io.EOFException
12:10:05 [SEVERE]       at java.io.DataInputStream.readInt(Unknown Source)
12:10:05 [SEVERE]       at rmm.l(Unknown Source)
12:10:05 [SEVERE]       at rmm.<init>(Unknown Source)
12:10:05 [SEVERE]       at rmm.init(Unknown Source)
12:10:05 [SEVERE]       at Runecraft.onEnable(Unknown Source)
12:10:05 [SEVERE]       at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlug
in.java:126)
12:10:05 [SEVERE]       at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(
JavaPluginLoader.java:885)
12:10:05 [SEVERE]       at org.bukkit.plugin.SimplePluginManager.enablePlugin(Si
mplePluginManager.java:278)
12:10:05 [SEVERE]       at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftSe
rver.java:178)
12:10:05 [SEVERE]       at org.bukkit.craftbukkit.CraftServer.enablePlugins(Craf
tServer.java:161)
12:10:05 [SEVERE]       at net.minecraft.server.MinecraftServer.e(MinecraftServe
r.java:286)
12:10:05 [SEVERE]       at net.minecraft.server.MinecraftServer.a(MinecraftServe
r.java:273)
12:10:05 [SEVERE]       at net.minecraft.server.MinecraftServer.init(MinecraftSe
rver.java:149)
12:10:05 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftSer
ver.java:337)
12:10:05 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(Sour
ceFile:422)

If there's a magical little fix for me, it'd be great. I'm running Windows 7 32bit, Have UAC disabled, and am running: BlockHat, DwarfForge, Essentials, EssentialsChat, EssentialsSpawn, mcMMO, Runecraft, and Tables as mods. This only happens in Bukkit, as well. Thanks!