Hopper: java.lang.IndexOutOfBoundsException: Index: 2, Size: 1

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-465893/

Crash:

java.lang.IndexOutOfBoundsException: Index: 2, Size: 1
	at java.util.ArrayList.RangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at bgg.b(SourceFile:35)
	at bgb.a(SourceFile:324)
	at bgb.a(SourceFile:258)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 10/25/13 6:16 PM
Description: Updating screen events

java.lang.IndexOutOfBoundsException: Index: 2, Size: 1
	at java.util.ArrayList.RangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at bgg.b(SourceFile:35)
	at bgb.a(SourceFile:324)
	at bgb.a(SourceFile:258)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)
	at azd.o(SourceFile:1303)
	at azd.ad(SourceFile:753)
	at azd.e(SourceFile:704)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at java.util.ArrayList.RangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at bgg.b(SourceFile:35)
	at bgb.a(SourceFile:324)
	at bgb.a(SourceFile:258)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)

-- Affected screen --
Details:
	Screen name: bgb
Stacktrace:
	at azd.o(SourceFile:1303)
	at azd.ad(SourceFile:753)
	at azd.e(SourceFile:704)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.6.0_21, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
	Memory: 334965960 bytes (319 MB) / 393871360 bytes (375 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.7.2
	LWJGL: 2.9.0
	OpenGL: Intel(R) HD Graphics GL version 2.1.0 - Build 8.15.10.2189, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [oCd pack 1.6 by disco.zip]
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
	Anisotropic Filtering: Off (1)

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-465893/21532443/