Hopper: java.lang.ArrayIndexOutOfBoundsException: 150

java.lang.ArrayIndexOutOfBoundsException: 150
	at ka.a(SourceFile:383)
	at gk.a(SourceFile:58)
	at cn.b(SourceFile:64)
	at ka.e(SourceFile:60)

---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 9/19/13 9:56 PM
Description: Ticking memory connection

java.lang.ArrayIndexOutOfBoundsException: 151
	at ka.a(SourceFile:383)
	at gk.a(SourceFile:58)
	at cn.b(SourceFile:64)
	at ka.e(SourceFile:60)
	at kd.b(SourceFile:37)
	at blc.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:489)
	at net.minecraft.server.MinecraftServer.s(SourceFile:406)
	at bkz.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:340)
	at hi.run(SourceFile:583)


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

-- Head --
Stacktrace:
	at ka.a(SourceFile:383)
	at gk.a(SourceFile:58)
	at cn.b(SourceFile:64)
	at ka.e(SourceFile:60)

-- Ticking connection --
Details:
	Connection: ka@5892a141
Stacktrace:
	at kd.b(SourceFile:37)
	at blc.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:489)
	at net.minecraft.server.MinecraftServer.s(SourceFile:406)
	at bkz.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:340)
	at hi.run(SourceFile:583)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 171719616 bytes (163 MB) / 369295360 bytes (352 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 555 (31080 bytes; 0 MB) allocated, 383 (21448 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 20 (1120 bytes; 0 MB) allocated, 6 (336 bytes; 0 MB) used
	Player Count: 1 / 8; [jv['VenomOps9'/39, l='VenoM's World', x=31.66, y=80.00, z=-6.32]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.