my minecraft crashes when I try to create a world and try to go into a world. After I tried creating a world, my minecraft crashed. I loaded it back up and tried to go into the world, and then It crashed again. Also when I looked at my servers non of them loaded. Then it sent me to this website. Also I can't choose the current version of mine craft. I am not using windows I am using OS (mac)

This is what the crash report says :---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 1/24/14 3:29 PM
Description: Starting integrated server

java.lang.ExceptionInInitializerError
at net.minecraft.server.MinecraftServer.<init>(SourceFile:113)
at btk.<init>(SourceFile:38)
at azi.a(SourceFile:1590)
at bcm.e(SourceFile:162)
at bcm.a(SourceFile:127)
at bcl.a(SourceFile:172)
at bcl.d(SourceFile:232)
at bcl.k(SourceFile:211)
at azi.p(SourceFile:1308)
at azi.ah(SourceFile:760)
at azi.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:152)
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 mv.<clinit>(SourceFile:31)
... 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: Too many open files in system
at sun.nio.ch.IOUtil.initPipe(Native Method)
at sun.nio.ch.KQueueSelectorImpl.<init>(KQueueSelectorImpl.java:48)
at sun.nio.ch.KQueueSelectorProvider.openSelector(KQueueSelectorProvider.java:20)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 19 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:113)
at btk.<init>(SourceFile:38)

– Starting integrated server –
Details:
Level ID: survival
Level Name: survival
Stacktrace:
at azi.a(SourceFile:1590)
at bcm.e(SourceFile:162)
at bcm.a(SourceFile:127)
at bcl.a(SourceFile:172)
at bcl.d(SourceFile:232)
at bcl.k(SourceFile:211)

– Affected screen –
Details:
Screen name: bct
Stacktrace:
at azi.p(SourceFile:1308)
at azi.ah(SourceFile:760)
at azi.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:152)

– System Details –
Details:
Minecraft Version: 1.7.4
Operating System: Mac OS X (x86_64) version 10.8.2
Java Version: 1.6.0_37, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 91212152 bytes (86 MB) / 125935616 bytes (120 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 1 total; -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.4
LWJGL: 2.9.1
OpenGL: AMD Radeon HD 6970M OpenGL Engine GL version 2.1 ATI-1.0.29, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object 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)
Vec3 Pool Size: ~_ERROR~ NullPointerException: null
Anisotropic Filtering: Off (1)