Exception in thread "main" java.lang.ExceptionInInitializerError
        at net.minecraft.server.MinecraftServer.<init>(SourceFile:113)
        at lm.<init>(SourceFile:50)
        at net.minecraft.server.MinecraftServer.main(SourceFile:590)
Caused by: java.lang.IllegalStateException: failed to create a child event loop
        at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGro
up.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 mv.<clinit>(SourceFile:31)
        ... 3 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>(MultithreadEventExecutorGro
up.java:57)
        ... 7 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)
        ... 10 more
Caused by: java.net.ConnectException: Connection timed out: connect
        at sun.nio.ch.Net.connect0(Native Method)
        at sun.nio.ch.Net.connect(Unknown Source)
        at sun.nio.ch.Net.connect(Unknown Source)
        at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
        at java.nio.channels.SocketChannel.open(Unknown Source)
        ... 19 more