Crash caused by Villager Particles I guess

Put the summary of the bug you're having here

What actually happened was...:
Exactly what should happen; except for the crash

Steps to Reproduce:
1. Create a villager selling written Books and Items
2. Sell a lot of stuff at once
3. See how the XP-Points appear
4. As soon as the villager-particles for a new trade should appear: Game-Crash

---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm using villagers to make you cry.

Time: 07.06.14 16:10
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 1
	at acc.cg(SourceFile:465)
	at acc.bB(SourceFile:181)
	at uw.bz(SourceFile:456)
	at uv.f(SourceFile:1398)
	at uw.f(SourceFile:316)
	at ty.f(SourceFile:120)
	at uv.j(SourceFile:1266)
	at uw.j(SourceFile:195)
	at alk.a(SourceFile:1447)
	at oq.a(SourceFile:565)
	at alk.g(SourceFile:1425)
	at alk.i(SourceFile:1330)
	at oq.i(SourceFile:438)
	at net.minecraft.server.MinecraftServer.w(SourceFile:578)
	at net.minecraft.server.MinecraftServer.v(SourceFile:506)
	at cln.v(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:422)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at acc.cg(SourceFile:465)
	at acc.bB(SourceFile:181)
	at uw.bz(SourceFile:456)
	at uv.f(SourceFile:1398)
	at uw.f(SourceFile:316)
	at ty.f(SourceFile:120)
	at uv.j(SourceFile:1266)
	at uw.j(SourceFile:195)
	at alk.a(SourceFile:1447)
	at oq.a(SourceFile:565)
	at alk.g(SourceFile:1425)

-- Entity being ticked --
Details:
	Entity Type: Villager (acc)
	Entity ID: 14
	Entity Name: Brewan
	Entity's Exact location: 896,51, 5,00, 616,58
	Entity's Block location: 896,00,5,00,616,00 - World: (896,5,616), Chunk: (at 0,0,8 in 56,38; contains blocks 896,0,608 to 911,255,623), Region: (1,1; contains chunks 32,32 to 63,63, blocks 512,0,512 to 1023,255,1023)
	Entity's Momentum: 0,00, -0,08, 0,00
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at alk.i(SourceFile:1330)
	at oq.i(SourceFile:438)

-- Affected level --
Details:
	Level name: Tower-Defense-Shop
	All players: 1 total; [ot['keith35'/16, l='Tower-Defense-Shop', x=894,06, y=5,00, z=616,11]]
	Chunk stats: ServerChunkCache: 691 Drop: 0
	Level seed: 4935888541435125986
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 3;minecraft:bedrock,2*minecraft:dirt,minecraft:grass;1;village
	Level spawn location: 706,00,4,00,625,00 - World: (706,4,625), Chunk: (at 2,0,1 in 44,39; contains blocks 704,0,624 to 719,255,639), Region: (1,1; contains chunks 32,32 to 63,63, blocks 512,0,512 to 1023,255,1023)
	Level time: 1355902 game time, 18000 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.w(SourceFile:578)
	at net.minecraft.server.MinecraftServer.v(SourceFile:506)
	at cln.v(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:422)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 14w21b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_55, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 65763896 bytes (62 MB) / 162385920 bytes (154 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [ot['keith35'/16, l='Tower-Defense-Shop', x=894,06, y=5,00, z=616,11]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.