arrrrrg!

Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 6/10/14 9:24 PM
Description: Starting integrated server

java.lang.ExceptionInInitializerError
at net.minecraft.server.MinecraftServer.<init>(SourceFile:141)
at clk.<init>(SourceFile:38)
at bjp.a(SourceFile:1755)
at bmq.a(SourceFile:208)
at bnq.a(SourceFile:180)
at bmq.a(SourceFile:317)
at bnq.d(SourceFile:242)
at bnq.k(SourceFile:219)
at bjp.p(SourceFile:1428)
at bjp.ai(SourceFile:839)
at bjp.f(SourceFile:793)
at net.minecraft.client.main.Main.main(SourceFile:121)
Caused by: java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:61)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
at ow.<clinit>(SourceFile:32)
... 12 more
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:57)
... 16 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 19 more
Caused by: java.net.SocketException: Unrecognized Windows Sockets error: 87: socket
at sun.nio.ch.Net.socket0(Native Method)
at sun.nio.ch.Net.serverSocket(Unknown Source)
at sun.nio.ch.ServerSocketChannelImpl.<init>(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openServerSocketChannel(Unknown Source)
at java.nio.channels.ServerSocketChannel.open(Unknown Source)
... 28 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at net.minecraft.server.MinecraftServer.<init>(SourceFile:141)
at clk.<init>(SourceFile:38)

– Starting integrated server –
Details:
Level ID: New World
Level Name: New World
Stacktrace:
at bjp.a(SourceFile:1755)
at bmq.a(SourceFile:208)
at bnq.a(SourceFile:180)
at bmq.a(SourceFile:317)
at bnq.d(SourceFile:242)
at bnq.k(SourceFile:219)

– Affected screen –
Details:
Screen name: bob
Stacktrace:
at bjp.p(SourceFile:1428)
at bjp.ai(SourceFile:839)
at bjp.f(SourceFile:793)
at net.minecraft.client.main.Main.main(SourceFile:121)

– System Details –
Details:
Minecraft Version: 14w20b
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 186143128 bytes (177 MB) / 236453888 bytes (225 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 14w20b
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 9.17.10.3347, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Anisotropic Filtering: Off (1)Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...