Netty IO #(increasing number starting from 1) /ERROR Channel became inactive!

Image taken of the bug.
(Multicraft cpanel console, Minecraft vanilla remains untouched. Multicraft is just a cpanel my host uses)

[11:12:13] [Server thread/INFO]: Starting minecraft server version 13w41a
[11:12:13] [Server thread/INFO]: Loading properties
[11:12:13] [Server thread/INFO]: Default game type: CREATIVE
[11:12:13] [Server thread/INFO]: Generating keypair
[11:12:13] [Server console handler/ERROR]: Exception handling console input
java.io.IOException: The handle is invalid
	at java.io.FileInputStream.readBytes(Native Method) ~[?:1.7.0_40]
	at java.io.FileInputStream.read(Unknown Source) ~[?:1.7.0_40]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_40]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_40]
	at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) ~[?:1.7.0_40]
	at sun.nio.cs.StreamDecoder.implRead(Unknown Source) ~[?:1.7.0_40]
	at sun.nio.cs.StreamDecoder.read(Unknown Source) ~[?:1.7.0_40]
	at java.io.InputStreamReader.read(Unknown Source) ~[?:1.7.0_40]
	at java.io.BufferedReader.fill(Unknown Source) ~[?:1.7.0_40]
	at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.7.0_40]
	at java.io.BufferedReader.readLine(Unknown Source) ~[?:1.7.0_40]
	at lj.run(SourceFile:78) [minecraft_server.13w41a.jar:?]
[11:12:14] [Server thread/INFO]: Starting Minecraft server on *:25565
[11:12:14] [Server thread/INFO]: Preparing level "Map"
[11:12:15] [Server thread/INFO]: Preparing start region for level 0
[11:12:16] [Server thread/INFO]: Preparing spawn area: 11%
[11:12:17] [Server thread/INFO]: Preparing spawn area: 58%
[11:12:17] [Server thread/INFO]: Done (3.243s)! For help, type "help" or "?"
[11:12:22] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2368ms behind, skipping 47 tick(s)
[11:12:39] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3666ms behind, skipping 73 tick(s)
[11:49:41] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NullPointerException
	at mo.c(SourceFile:130) ~[minecraft_server.13w41a.jar:?]
	at net.minecraft.server.MinecraftServer.u(SourceFile:528) ~[minecraft_server.13w41a.jar:?]
	at lh.u(SourceFile:259) ~[minecraft_server.13w41a.jar:?]
	at net.minecraft.server.MinecraftServer.t(SourceFile:440) ~[minecraft_server.13w41a.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:358) [minecraft_server.13w41a.jar:?]
	at kw.run(SourceFile:616) [minecraft_server.13w41a.jar:?]
[11:49:41] [Server thread/ERROR]: This crash report has been saved to: D:\Program Files\Minecraft Server\.\crash-reports\crash-2013-10-10_11.49.41-server.txt
[11:49:42] [Netty IO #1/ERROR]: Channel became inactive!
[11:50:02] [Netty IO #2/ERROR]: Channel became inactive!
[11:50:20] [Netty IO #0/ERROR]: Channel became inactive!
[11:50:32] [Netty IO #3/ERROR]: Channel became inactive!

Also having this issue

[20:10:52] [Server thread/INFO]: Starting minecraft server version 13w41a
[20:10:52] [Server thread/INFO]: Loading properties
[20:10:52] [Server thread/INFO]: Default game type: SURVIVAL
[20:10:52] [Server thread/INFO]: Generating keypair
[20:10:53] [Server thread/INFO]: Starting Minecraft server on *:25565
[20:10:53] [Server thread/INFO]: Preparing level "world"
[20:10:53] [Server thread/INFO]: Preparing start region for level 0
[20:10:59] [Server thread/INFO]: Preparing spawn area: 0%
[20:11:00] [Server thread/INFO]: Preparing spawn area: 22%
[20:11:01] [Server thread/INFO]: Preparing spawn area: 68%
[20:11:02] [Server thread/INFO]: Done (8.609s)! For help, type "help" or "?"
[20:11:08] [Netty IO #1/ERROR]: Channel became inactive!
[20:15:03] [Netty IO #2/ERROR]: Channel became inactive!
[20:16:09] [Netty IO #3/ERROR]: Channel became inactive!
[20:16:17] [Netty IO #4/ERROR]: Channel became inactive!
[20:16:23] [Netty IO #5/ERROR]: Channel became inactive!
[20:16:31] [Netty IO #6/ERROR]: Channel became inactive!
[20:18:17] [Netty IO #7/ERROR]: Channel became inactive!
[20:18:27] [Netty IO #0/ERROR]: Channel became inactive!
[20:18:35] [Netty IO #1/ERROR]: Channel became inactive!
[20:18:38] [Netty IO #2/ERROR]: Channel became inactive!
[20:18:45] [Netty IO #3/ERROR]: Channel became inactive!
[20:19:20] [Netty IO #4/ERROR]: Channel became inactive!

Confirmed.

Also effects 13w41b

Many of the bugs closed as duplicates also complain of being unable to connect to the server, the log spam being incidental to the report. Does this bug being fixed mean that the log spamming is fixed? Or has the issue mentioned in the duplicate bugs (unable to connect to server, timeout exception displayed) been resolved?

[09:23:17] [Server thread/INFO]: Starting minecraft server version 13w41b
[09:23:17] [Server console handler/ERROR]: Exception handling console input

There is a bug that was closed for being a duplicate of this, when it is a totally different error. Here it is: https://mojang.atlassian.net/browse/MC-34947
Please reopen this so that it will be noticed and hopefully fixed.

There are diff Netty IO issues and the biggest hasnt been solved yet an is causing a lot of servers to stay clear of the 13w4* snapshot as to many ppl cant get onto them

13w39b also had issues of kicking players or refusing to let them in. If its stability that one need, all snapshots should be out of question lol