Hopper: java.lang.ArrayIndexOutOfBoundsException: 1

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-2920791/

Crash:

java.lang.ArrayIndexOutOfBoundsException: 1
	at aaf.dp(SourceFile:534)
	at aaf.M(SourceFile:220)
	at so.cr(SourceFile:650)
	at sn.n(SourceFile:1793)
	at so.n(SourceFile:495)
	at sb.n(SourceFile:136)
	at sn.m(SourceFile:1655)
	at so.m(SourceFile:278)
	at aiu.a(SourceFile:1526)
	at lu.a(SourceFile:716)
	at aiu.g(SourceFile:1504)
	at aiu.k(SourceFile:1387)
	at lu.k(SourceFile:549)
	at net.minecraft.server.MinecraftServer.D(SourceFile:627)
	at net.minecraft.server.MinecraftServer.C(SourceFile:555)
	at caj.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:459)
	at java.lang.Thread.run(Thread.java:745)

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

---- Minecraft Crash Report ----
// My bad.

Time: 8/11/16 1:07 PM
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 1
	at aaf.dp(SourceFile:534)
	at aaf.M(SourceFile:220)
	at so.cr(SourceFile:650)
	at sn.n(SourceFile:1793)
	at so.n(SourceFile:495)
	at sb.n(SourceFile:136)
	at sn.m(SourceFile:1655)
	at so.m(SourceFile:278)
	at aiu.a(SourceFile:1526)
	at lu.a(SourceFile:716)
	at aiu.g(SourceFile:1504)
	at aiu.k(SourceFile:1387)
	at lu.k(SourceFile:549)
	at net.minecraft.server.MinecraftServer.D(SourceFile:627)
	at net.minecraft.server.MinecraftServer.C(SourceFile:555)
	at caj.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:459)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Server thread
Stacktrace:
	at aaf.dp(SourceFile:534)
	at aaf.M(SourceFile:220)
	at so.cr(SourceFile:650)
	at sn.n(SourceFile:1793)
	at so.n(SourceFile:495)
	at sb.n(SourceFile:136)
	at sn.m(SourceFile:1655)
	at so.m(SourceFile:278)
	at aiu.a(SourceFile:1526)
	at lu.a(SourceFile:716)
	at aiu.g(SourceFile:1504)

-- Entity being ticked --
Details:
	Entity Type: minecraft:villager (aaf)
	Entity ID: 12781
	Entity Name: Villager
	Entity's Exact location: -67.50, 66.00, 273.50
	Entity's Block location: World: (-68,66,273), Chunk: (at 12,4,1 in -5,17; contains blocks -80,0,272 to -65,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Entity's Momentum: 0.00, -0.08, 0.00
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aiu.k(SourceFile:1387)
	at lu.k(SourceFile:549)

-- Affected level --
Details:
	Level name: IslandOfStuffAndSnapshotTesting
	All players: 1 total; [lw['InjuredTaco'/316, l='IslandOfStuffAndSnapshotTesting', x=-66.36, y=68.00, z=272.79]]
	Chunk stats: ServerChunkCache: 4227 Drop: 0
	Level seed: -460653131702352744
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-76,64,252), Chunk: (at 4,4,12 in -5,15; contains blocks -80,0,240 to -65,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 156880 game time, 83271 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 71992 (now: false), thunder time: 41633 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:627)
	at net.minecraft.server.MinecraftServer.C(SourceFile:555)
	at caj.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:459)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 16w32b
	Operating System: Mac OS X (x86_64) version 10.11.6
	Java Version: 1.8.0_74, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 186343000 bytes (177 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 36, allocated: 18, tallocated: 135
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [lw['InjuredTaco'/316, l='IslandOfStuffAndSnapshotTesting', x=-66.36, y=68.00, z=272.79]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-2920791/77044779/