Minecraft crashes when clicking "Multiplayer"

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 12/7/14 3:56 PM
Description: Updating screen events

java.lang.UnsatisfiedLinkError: java.net.AbstractPlainDatagramSocketImpl.init()V
	at java.net.AbstractPlainDatagramSocketImpl.init(Native Method)
	at java.net.AbstractPlainDatagramSocketImpl.<clinit>(Unknown Source)
	at java.net.DefaultDatagramSocketImplFactory.createDatagramSocketImpl(Unknown Source)
	at java.net.DatagramSocket.createImpl(Unknown Source)
	at java.net.DatagramSocket.<init>(Unknown Source)
	at java.net.MulticastSocket.<init>(Unknown Source)
	at java.net.MulticastSocket.<init>(Unknown Source)
	at cyr.<init>(SourceFile:101)
	at bzo.b(SourceFile:68)
	at bxe.a(SourceFile:368)
	at bss.a(SourceFile:812)
	at bxp.a(SourceFile:219)
	at bxe.a(SourceFile:342)
	at bxp.a(SourceFile:471)
	at bxe.k(SourceFile:405)
	at bxe.p(SourceFile:382)
	at bss.r(SourceFile:1480)
	at bss.at(SourceFile:880)
	at bss.a(SourceFile:317)
	at net.minecraft.client.main.Main.main(SourceFile:124)


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

-- Head --
Stacktrace:
	at java.net.AbstractPlainDatagramSocketImpl.init(Native Method)
	at java.net.AbstractPlainDatagramSocketImpl.<clinit>(Unknown Source)
	at java.net.DefaultDatagramSocketImplFactory.createDatagramSocketImpl(Unknown Source)
	at java.net.DatagramSocket.createImpl(Unknown Source)
	at java.net.DatagramSocket.<init>(Unknown Source)
	at java.net.MulticastSocket.<init>(Unknown Source)
	at java.net.MulticastSocket.<init>(Unknown Source)
	at cyr.<init>(SourceFile:101)
	at bzo.b(SourceFile:68)
	at bxe.a(SourceFile:368)
	at bss.a(SourceFile:812)
	at bxp.a(SourceFile:219)
	at bxe.a(SourceFile:342)
	at bxp.a(SourceFile:471)
	at bxe.k(SourceFile:405)
	at bxe.p(SourceFile:382)

-- Affected screen --
Details:
	Screen name: bzo
Stacktrace:
	at bss.r(SourceFile:1480)
	at bss.at(SourceFile:880)
	at bss.a(SourceFile:317)
	at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
	Minecraft Version: 1.8.1
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.7.0_72, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 72947656 bytes (69 MB) / 238411776 bytes (227 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.8.1
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 8610G GL version 4.3.12804 Compatibility Profile Context 13.352.1004.1007, ATI Technologies Inc.
	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.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: Yes
	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)