Hopper: java.lang.NullPointerException

java.lang.NullPointerException
	at ny.a(SourceFile:89)
	at ou.aL(SourceFile:396)
	at ou.z(SourceFile:222)
	at ov.z(SourceFile:128)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at ov.o_(SourceFile:169)
	at sd.o_(SourceFile:107)
	at act.a(SourceFile:1351)
	at act.g(SourceFile:1329)

---- Minecraft Crash Report ----
// Why did you do that?

Time: 9/5/13 9:13 PM
Description: Ticking entity

java.lang.NullPointerException
	at ny.a(SourceFile:89)
	at ou.aL(SourceFile:396)
	at ou.z(SourceFile:222)
	at ov.z(SourceFile:128)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at ov.o_(SourceFile:169)
	at sd.o_(SourceFile:107)
	at act.a(SourceFile:1351)
	at act.g(SourceFile:1329)
	at act.h(SourceFile:1236)
	at avx.m(SourceFile:1426)
	at avx.V(SourceFile:686)
	at avx.e(SourceFile:642)
	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 ny.a(SourceFile:89)
	at ou.aL(SourceFile:396)
	at ou.z(SourceFile:222)
	at ov.z(SourceFile:128)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at ov.o_(SourceFile:169)
	at sd.o_(SourceFile:107)
	at act.a(SourceFile:1351)
	at act.g(SourceFile:1329)

-- Entity being ticked --
Details:
	Entity Type: Bat (sd)
	Entity ID: 80082
	Entity Name: Bat
	Entity's Exact location: 291.50, 114.00, 268.50
	Entity's Block location: World: (291,114,268), Chunk: (at 3,7,12 in 18,16; contains blocks 288,0,256 to 303,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: 0.00, 0.00, 0.00
Stacktrace:
	at act.h(SourceFile:1236)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bfg['5743race'/13546, l='MpServer', x=291.90, y=113.62, z=272.42]]
	Chunk stats: MultiplayerChunkCache: 401, 401
	Level seed: 0
	Level generator: ID 03 - amplified, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (244,64,188), Chunk: (at 4,4,12 in 15,11; contains blocks 240,0,176 to 255,255,191), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 50749 game time, 50749 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 177 total; [us['Villager'/63851, l='MpServer', x=272.28, y=121.00, z=260.56], ui['Skeleton'/70780, l='MpServer', x=306.50, y=128.00, z=304.50], sd['Bat'/60030, l='MpServer', x=278.53, y=119.65, z=254.47], tw['Creeper'/76799, l='MpServer', x=336.50, y=39.00, z=219.50], tj['item.tile.sapling.oak'/67998, l='MpServer', x=280.41, y=116.13, z=264.13], tj['item.item.dyePowder.black'/66099, l='MpServer', x=289.56, y=51.13, z=225.13], ui['Skeleton'/79384, l='MpServer', x=325.50, y=47.00, z=193.50], tx['Enderman'/75009, l='MpServer', x=357.47, y=29.00, z=224.72], tx['Enderman'/75011, l='MpServer', x=356.72, y=28.00, z=226.97], tx['Enderman'/75010, l='MpServer', x=360.56, y=28.00, z=228.03], sd['Bat'/51222, l='MpServer', x=288.95, y=107.70, z=289.48], tj['item.item.dyePowder.black'/71008, l='MpServer', x=302.17, y=40.13, z=249.04], uk['Spider'/75012, l='MpServer', x=353.16, y=28.00, z=224.88], ui['Skeleton'/75015, l='MpServer', x=314.50, y=134.00, z=245.50], tj['item.item.dyePowder.black'/63866, l='MpServer', x=288.25, y=48.13, z=235.41], tx['Enderman'/69941, l='MpServer', x=344.50, y=41.00, z=215.50], tw['Creeper'/67455, l='MpServer', x=300.69, y=109.00, z=234.69], us['Villager'/67729, l='MpServer', x=284.47, y=104.47, z=285.16], sd['Bat'/70199, l='MpServer', x=302.57, y=111.53, z=269.44], tw['Creeper'/68511, l='MpServer', x=239.94, y=34.00, z=312.41], un['Zombie'/70198, l='MpServer', x=302.57, y=112.20, z=269.44], us['Villager'/63816, l='MpServer', x=288.59, y=102.00, z=290.47], bfg['5743race'/13546, l='MpServer', x=291.90, y=113.62, z=272.42], ui['Skeleton'/77443, l='MpServer', x=283.50, y=59.00, z=217.50], us['Villager'/63820, l='MpServer', x=277.34, y=113.00, z=255.88], so['Sheep'/13586, l='MpServer', x=369.69, y=87.00, z=284.47], sd['Bat'/79107, l='MpServer', x=313.93, y=30.10, z=289.11], so['Sheep'/13587, l='MpServer', x=368.50, y=87.00, z=285.78], sd['Bat'/79108, l='MpServer', x=312.58, y=27.69, z=277.27], sd['Bat'/51488, l='MpServer', x=280.25, y=104.10, z=289.69], sd['Bat'/79109, l='MpServer', x=312.50, y=27.13, z=277.54], tw['Creeper'/76274, l='MpServer', x=242.56, y=137.00, z=283.09], tj['item.item.dyePowder.black'/69660, l='MpServer', x=296.53, y=41.13, z=246.16], sd['Bat'/55554, l='MpServer', x=287.37, y=107.40, z=286.11], un['Zombie'/79677, l='MpServer', x=284.70, y=59.82, z=221.40], sd['Bat'/76979, l='MpServer', x=243.52, y=31.80, z=305.51], un['Zombie'/79676, l='MpServer', x=282.50, y=59.00, z=221.00], sd['Bat'/76980, l='MpServer', x=234.95, y=36.20, z=316.48], ui['Skeleton'/74796, l='MpServer', x=275.88, y=56.00, z=214.50], sd['Bat'/78163, l='MpServer', x=367.83, y=35.14, z=285.43], so['Sheep'/59, l='MpServer', x=218.66, y=114.00, z=213.50], so['Sheep'/13568, l='MpServer', x=335.94, y=152.00, z=346.91], so['Sheep'/13570, l='MpServer', x=332.50, y=151.00, z=352.50], sd['Bat'/80082, l='MpServer', x=291.50, y=114.00, z=268.50], us['Villager'/67767, l='MpServer', x=292.06, y=105.00, z=287.63], us['Villager'/63830, l='MpServer', x=272.69, y=105.00, z=237.03], un['Zombie'/80081, l='MpServer', x=291.50, y=114.00, z=268.50], so['Sheep'/60, l='MpServer', x=211.06, y=139.00, z=223.53], sf['Chicken'/69, l='MpServer', x=227.38, y=157.00, z=256.56], uk['Spider'/77874, l='MpServer', x=224.38, y=35.00, z=341.50], sd['Bat'/77539, l='MpServer', x=332.26, y=50.98, z=198.38], ui['Skeleton'/74290, l='MpServer', x=358.50, y=30.00, z=224.50], us['Villager'/63784, l='MpServer', x=283.50, y=104.00, z=292.28], tj['item.item.dyePowder.black'/72386, l='MpServer', x=288.75, y=50.13, z=226.38], bhb['JPD75'/29917, l='MpServer', x=367.97, y=134.47, z=124.03], sf['Chicken'/72, l='MpServer', x=238.38, y=163.00, z=263.53], sf['Chicken'/73, l='MpServer', x=236.63, y=166.00, z=268.66], un['Zombie'/79200, l='MpServer', x=244.50, y=143.00, z=290.50], sf['Chicken'/74, l='MpServer', x=236.50, y=164.00, z=263.50], us['Villager'/68325, l='MpServer', x=300.65, y=115.81, z=286.50], tw['Creeper'/80056, l='MpServer', x=339.50, y=14.00, z=214.50], tw['Creeper'/77252, l='MpServer', x=353.50, y=29.00, z=210.50], tw['Creeper'/80057, l='MpServer', x=294.85, y=53.00, z=254.50], us['Villager'/63807, l='MpServer', x=268.53, y=104.00, z=236.53], so['Sheep'/84, l='MpServer', x=241.91, y=124.00, z=226.63], un['Zombie'/80058, l='MpServer', x=289.50, y=53.00, z=254.50], ui['Skeleton'/77254, l='MpServer', x=351.50, y=29.00, z=208.50], ui['Skeleton'/77255, l='MpServer', x=352.50, y=29.00, z=209.50], tj['item.item.dyePowder.black'/64610, l='MpServer', x=288.19, y=51.13, z=225.25], so['Sheep'/81, l='MpServer', x=241.38, y=73.00, z=218.78], so['Sheep'/83, l='MpServer', x=247.78, y=121.00, z=216.53], so['Sheep'/82, l='MpServer', x=246.13, y=121.00, z=217.91], tj['item.item.dyePowder.black'/69548, l='MpServer', x=231.81, y=55.13, z=336.47], us['Villager'/64003, l='MpServer', x=275.84, y=107.00, z=240.53], us['Villager'/68338, l='MpServer', x=258.66, y=118.00, z=258.44], sd['Bat'/58282, l='MpServer', x=268.18, y=109.87, z=284.67], us['Villager'/68034, l='MpServer', x=256.47, y=122.33, z=284.14], un['Zombie'/79722, l='MpServer', x=239.54, y=22.50, z=275.96], us['Villager'/68296, l='MpServer', x=264.31, y=98.00, z=288.69], tw['Creeper'/78082, l='MpServer', x=244.50, y=20.00, z=263.50], ui['Skeleton'/75115, l='MpServer', x=336.69, y=53.00, z=194.13], so['Sheep'/110, l='MpServer', x=270.50, y=132.00, z=317.50], so['Sheep'/111, l='MpServer', x=263.50, y=128.00, z=307.34], tw['Creeper'/77849, l='MpServer', x=282.50, y=58.00, z=218.50], tw['Creeper'/79168, l='MpServer', x=316.59, y=54.00, z=204.00], sd['Bat'/53994, l='MpServer', x=284.65, y=110.61, z=291.52], tw['Creeper'/79169, l='MpServer', x=321.31, y=54.00, z=201.50], tw['Creeper'/75106, l='MpServer', x=341.50, y=36.00, z=214.50], tj['item.tile.sapling.oak'/69257, l='MpServer', x=296.13, y=109.13, z=261.78], sd['Bat'/46975, l='MpServer', x=291.63, y=109.34, z=285.62], tw['Creeper'/79170, l='MpServer', x=322.71, y=55.00, z=198.84], tw['Creeper'/79171, l='MpServer', x=318.56, y=54.00, z=201.03], tw['Creeper'/75104, l='MpServer', x=341.50, y=36.00, z=215.50], us['Villager'/68295, l='MpServer', x=264.53, y=109.00, z=293.38], uk['Spider'/79464, l='MpServer', x=302.50, y=78.00, z=348.50], un['Zombie'/72848, l='MpServer', x=337.59, y=65.00, z=194.06], ui['Skeleton'/76685, l='MpServer', x=363.50, y=28.00, z=227.50], un['Zombie'/72849, l='MpServer', x=342.50, y=65.00, z=193.50], ui['Skeleton'/73765, l='MpServer', x=283.50, y=15.00, z=225.50], bhb['JPD75'/29917, l='MpServer', x=289.44, y=113.00, z=267.47], us['Villager'/68074, l='MpServer', x=276.64, y=108.00, z=280.47], sd['Bat'/37914, l='MpServer', x=320.09, y=112.15, z=272.49], so['Sheep'/124, l='MpServer', x=280.84, y=121.00, z=304.94], so['Sheep'/123, l='MpServer', x=286.66, y=108.00, z=238.88], us['Villager'/68311, l='MpServer', x=261.29, y=119.72, z=275.09], un['Zombie'/78078, l='MpServer', x=356.50, y=29.00, z=221.50], sd['Bat'/73946, l='MpServer', x=336.17, y=41.26, z=204.23], un['Zombie'/67595, l='MpServer', x=278.59, y=104.76, z=282.50], tw['Creeper'/76800, l='MpServer', x=332.50, y=39.00, z=222.50], sd['Bat'/67596, l='MpServer', x=278.59, y=104.08, z=282.50], us['Villager'/63980, l='MpServer', x=324.06, y=113.00, z=278.50], us['Villager'/65162, l='MpServer', x=266.44, y=112.00, z=239.16], us['Villager'/65161, l='MpServer', x=300.66, y=107.00, z=233.38], us['Villager'/67854, l='MpServer', x=254.94, y=122.00, z=276.34], un['Zombie'/79783, l='MpServer', x=250.50, y=19.00, z=265.50], un['Zombie'/79782, l='MpServer', x=247.50, y=19.00, z=262.50], un['Zombie'/79781, l='MpServer', x=248.69, y=19.00, z=260.50], tw['Creeper'/78576, l='MpServer', x=347.50, y=50.00, z=216.50], ui['Skeleton'/74451, l='MpServer', x=277.50, y=57.00, z=219.50], ui['Skeleton'/74450, l='MpServer', x=280.50, y=57.00, z=217.50], tj['item.item.egg'/72775, l='MpServer', x=234.84, y=163.13, z=262.38], un['Zombie'/79784, l='MpServer', x=248.50, y=19.00, z=265.50], us['Villager'/63952, l='MpServer', x=262.59, y=115.00, z=239.88], us['Villager'/68356, l='MpServer', x=307.66, y=97.53, z=272.59], so['Sheep'/191, l='MpServer', x=345.47, y=91.00, z=235.47], us['Villager'/63959, l='MpServer', x=269.38, y=118.00, z=257.25], un['Zombie'/78024, l='MpServer', x=324.47, y=120.00, z=250.97], tw['Creeper'/78022, l='MpServer', x=244.50, y=33.00, z=292.50], tj['item.item.dyePowder.black'/72494, l='MpServer', x=288.22, y=48.13, z=234.22], tw['Creeper'/78991, l='MpServer', x=318.50, y=153.00, z=250.50], us['Villager'/67887, l='MpServer', x=308.53, y=101.00, z=274.63], tj['item.item.egg'/76622, l='MpServer', x=237.63, y=163.13, z=263.56], ui['Skeleton'/72260, l='MpServer', x=336.00, y=43.00, z=212.31], us['Villager'/68197, l='MpServer', x=285.47, y=103.00, z=291.53], un['Zombie'/78730, l='MpServer', x=293.50, y=56.00, z=266.50], us['Villager'/63905, l='MpServer', x=269.00, y=106.00, z=238.53], tw['Creeper'/79100, l='MpServer', x=323.50, y=41.00, z=192.50], un['Zombie'/79101, l='MpServer', x=322.50, y=41.00, z=192.50], so['Sheep'/193, l='MpServer', x=346.53, y=91.00, z=236.53], us['Villager'/68206, l='MpServer', x=302.63, y=111.75, z=254.65], so['Sheep'/192, l='MpServer', x=347.72, y=88.00, z=231.94], tw['Creeper'/79336, l='MpServer', x=243.49, y=64.96, z=327.60], so['Sheep'/194, l='MpServer', x=345.81, y=93.00, z=236.50], so['Sheep'/13557, l='MpServer', x=246.44, y=171.00, z=344.19], so['Sheep'/13556, l='MpServer', x=247.25, y=169.00, z=350.75], us['Villager'/67669, l='MpServer', x=252.50, y=126.00, z=283.06], so['Sheep'/13559, l='MpServer', x=299.34, y=151.00, z=352.50], so['Sheep'/13558, l='MpServer', x=261.94, y=169.00, z=331.97], un['Zombie'/67235, l='MpServer', x=233.50, y=69.00, z=321.50], bhb['JPD75'/29917, l='MpServer', x=207.22, y=125.59, z=128.41], so['Sheep'/13555, l='MpServer', x=244.53, y=171.00, z=345.47], sd['Bat'/45964, l='MpServer', x=294.63, y=116.98, z=288.38], us['Villager'/63931, l='MpServer', x=284.34, y=111.00, z=277.47], so['Sheep'/13560, l='MpServer', x=308.50, y=149.00, z=349.50], tw['Creeper'/72561, l='MpServer', x=244.50, y=24.00, z=257.50], tw['Creeper'/72560, l='MpServer', x=243.50, y=24.00, z=259.50], tj['item.tile.sapling.oak'/64729, l='MpServer', x=299.88, y=107.13, z=259.16], so['Sheep'/233, l='MpServer', x=362.50, y=113.00, z=281.50], so['Sheep'/232, l='MpServer', x=365.50, y=108.00, z=282.50], un['Zombie'/78758, l='MpServer', x=233.50, y=69.00, z=322.50], un['Zombie'/78757, l='MpServer', x=231.50, y=69.00, z=319.50], un['Zombie'/77969, l='MpServer', x=270.03, y=88.00, z=232.50], tj['item.item.egg'/61138, l='MpServer', x=236.91, y=165.13, z=272.13], us['Villager'/68172, l='MpServer', x=320.25, y=110.00, z=277.50], ui['Skeleton'/77381, l='MpServer', x=339.09, y=41.00, z=213.41], ui['Skeleton'/70081, l='MpServer', x=255.50, y=17.00, z=254.50], sd['Bat'/78780, l='MpServer', x=293.44, y=56.01, z=200.02], ui['Skeleton'/77967, l='MpServer', x=262.50, y=86.00, z=236.50], so['Sheep'/251, l='MpServer', x=366.34, y=103.00, z=254.47], us['Villager'/68183, l='MpServer', x=269.55, y=110.00, z=278.53], us['Villager'/67948, l='MpServer', x=297.33, y=88.00, z=251.07], ui['Skeleton'/79903, l='MpServer', x=227.50, y=77.00, z=218.50], un['Zombie'/78497, l='MpServer', x=262.50, y=21.00, z=236.50], un['Zombie'/78496, l='MpServer', x=262.50, y=21.00, z=238.50], tw['Creeper'/78499, l='MpServer', x=264.50, y=21.00, z=237.50], un['Zombie'/78498, l='MpServer', x=265.50, y=21.00, z=237.50], us['Villager'/68191, l='MpServer', x=285.90, y=112.81, z=296.51]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bfb.a(SourceFile:285)
	at avx.b(SourceFile:1813)
	at avx.e(SourceFile:651)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w36a
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_10, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 327324192 bytes (312 MB) / 569901056 bytes (543 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 4213 (235928 bytes; 0 MB) allocated, 2109 (118104 bytes; 0 MB) used
	Suspicious classes: [com.ibm.icu.text.ArabicShapingException], [gnu.trove.TIntCollection], [gnu.trove.impl.HashFunctions, PrimeFinder], [gnu.trove.impl.hash.THash, TPrimitiveHash, TIntIntHash], [gnu.trove.iterator.TIterator, TAdvancingIterator, TIntIntIterator], [gnu.trove.map.TIntIntMap], [gnu.trove.map.hash.TIntIntHashMap], [gnu.trove.procedure.TIntIntProcedure], [gnu.trove.set.TIntSet]
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 13w36a
	LWJGL: 2.9.0
	OpenGL: ATI Mobility Radeon HD 4650 GL version 2.1.8787, ATI Technologies Inc.
	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)
	Vec3 Pool Size: 694 (38864 bytes; 0 MB) allocated, 333 (18648 bytes; 0 MB) used