[MC-59889] Crash when seeing mobappearance particles

As soon as I opened a command block I got a crash as follows

Time: 2/07/14 10:35 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at cbd.a(SourceFile:74)
	at cbi.b(SourceFile:316)
	at cdo.a(SourceFile:1233)
	at cdo.a(SourceFile:1121)
	at cdo.b(SourceFile:973)
	at bmi.ap(SourceFile:886)
	at bmi.a(SourceFile:303)
	at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
	at cbd.a(SourceFile:74)
	at cbi.b(SourceFile:316)
	at cdo.a(SourceFile:1233)
	at cdo.a(SourceFile:1121)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [ccy['kobey2'/1, l='MpServer', x=-305.13, y=1.00, z=-805.30]]
	Chunk stats: MultiplayerChunkCache: 1089, 1089
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: -267.00,4.00,-724.00 - World: (-267,4,-724), Chunk: (at 5,0,12 in -17,-46; contains blocks -272,0,-736 to -257,255,-721), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
	Level time: 59068 game time, 43296 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: 1 total; [ccy['kobey2'/1, l='MpServer', x=-305.13, y=1.00, z=-805.30]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bza.a(SourceFile:310)
	at bmi.b(SourceFile:2135)
	at bmi.a(SourceFile:317)
	at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
	Minecraft Version: 14w27a
	Operating System: Mac OS X (x86_64) version 10.9.2
	Java Version: 1.6.0_65, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 67433216 bytes (64 MB) / 429182976 bytes (409 MB) up to 1065025536 bytes (1015 MB)
	JVM Flags: 1 total; -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 14w27a
	LWJGL: 2.9.1
	OpenGL: Intel HD Graphics 5000 OpenGL Engine GL version 2.1 INTEL-8.26.34, Intel Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.

	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)

Linked issues

is duplicated by 29

MC-60579 Whenever i see the mobappearance particle my minecraft crashes. Resolved

MC-60936 Command block with "particle mobappearance" crash Resolved

MC-61771 The game crashes when using mobappearence particle Resolved

MC-61812 The game crashes when reloading a world after a crash with a redstone clock with /particle mobappearence Resolved

MC-64552 Elder Guardians’ “curse” crashes the game Resolved

24 more links

Comments 21

Dlawso the Really Lucky Rabbit 2014-07-02T14:51:57Z

Cannot reproduce.

kumasasa 2014-07-13T07:42:47Z

Did you have a command block with particle mobappearance ? The three duplicates of this ticket have.

kumasasa 2014-07-17T19:01:45Z

Is this still an issue in 14w29b ?

Dlawso the Really Lucky Rabbit 2014-07-30T23:58:59Z

Still in 31a (MC-64590).

qmagnet 2014-08-01T23:59:06Z

Confirmed on server 14w31a

11 more comments

qmagnet 2014-08-02T00:00:50Z

It doesn't happen every time. I believe this happens when 1 of the 3 tries to display - possibly only on server?

qmagnet 2014-08-02T03:08:16Z

To reproduce, run this command on a clock

/particle mobappearance ~ ~ ~ 1 1 1 1

Happens on server and local. Please fix.

Sciger 2014-08-02T03:20:43Z

Confirmed 14w31a. Just attempted to go into a temple and every time the Elder Guardian inflicts mining fatigue, it crashes my game. Has occurred multiple times.

Kobey Rafferty 2014-08-03T02:54:17Z

Multiple crashes, not every time mobapearance appears, 1/3 chance of crash, opening command block with mobappearance particle causes crash, 1/3 chance of crash when opening or seeing a mobappearance particle

Kobey Rafferty 2014-08-03T02:55:53Z

I set a hopper timer with a delay set using blockdata and it only affected my game once in every 3 times approx
/particle mobappearance ~ ~ ~ 1 1 1 1 @p

Kobey Rafferty 2014-08-03T02:56:37Z

Setting the speed of the particle doesnt affect how it displays, is it possible setting a speed with this particle causes crash?

Tintti214 2014-08-03T17:11:26Z

@Kobey Raffery
No, happens even with speed set to 0

dagreenkat 2014-08-03T17:44:32Z

I had a problem just gliding over the monument in a boat. That crashed my game after a weird (probably guardian) sound occurred.

David Wheatley 2014-08-04T17:41:56Z

I got a slightly different crash message:

Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at cfq.a(SourceFile:74)
	at cfv.b(SourceFile:321)
	at cif.a(SourceFile:1250)
	at cif.a(SourceFile:1117)
	at cif.b(SourceFile:970)
	at brw.as(SourceFile:897)
	at brw.a(SourceFile:308)
	at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
	at cfq.a(SourceFile:74)
	at cfv.b(SourceFile:321)
	at cif.a(SourceFile:1250)
	at cif.a(SourceFile:1117)

kumasasa 2014-08-04T18:35:34Z

@@unknown: It's slightly different, because the crash report of the OP was in 14w27a. From version to version the line numbers (may) change.
If you compare your crash report to e.g. MC-65270, you'll see those are identical because both in 14w31a.

vis 2014-08-04T19:42:50Z

Confirmed in Single Player survial mode in 14w31a. I never had this problem in the other snapshots, only in 14w31a.

Adrian S 2014-08-05T07:15:04Z

Confirmed for Multiplayer in 14w31a. All players who received the particle effect (and sound and Mining Fatigue) at the water temple crashed simultaneously. Client-side crash only.

qmagnet 2014-08-05T10:56:33Z

This bug has nothing to do with the mining fatigue effect. I've tested the mining effect on a clock and the game does not crash. It is specific to the mobappearace particle and should be updated.

Steven Zambelle 2014-08-05T22:09:50Z

I can confirm (in SSP snapshot 14w31a) that the crashes only started happening when the debuff was re-applied. After that it has become constant when approaching or even mining near a monument.

Tintti214 2014-08-06T15:24:56Z

Confirmed in 14w32a
Minecraft spat this out:

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 6.8.2014 18:21
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at cge.a(SourceFile:74)
	at cgj.b(SourceFile:321)
	at cit.a(SourceFile:1250)
	at cit.a(SourceFile:1117)
	at cit.b(SourceFile:970)
	at bsi.as(SourceFile:900)
	at bsi.a(SourceFile:311)
	at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
	at cge.a(SourceFile:74)
	at cgj.b(SourceFile:321)
	at cit.a(SourceFile:1250)
	at cit.a(SourceFile:1117)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [cia['tintti214'/290, l='MpServer', x=-119,66, y=69,65, z=242,18]]
	Chunk stats: MultiplayerChunkCache: 1030, 1030
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: -124,00,64,00,248,00 - World: (-124,64,248), Chunk: (at 4,4,8 in -8,15; contains blocks -128,0,240 to -113,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 10739 game time, 10739 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: 66 total; [afo['Skeleton'/108893, l='MpServer', x=-44,34, y=11,00, z=165,44], abw['Pig'/129, l='MpServer', x=-71,50, y=69,00, z=198,97], abw['Pig'/128, l='MpServer', x=-67,00, y=69,00, z=199,94], afo['Skeleton'/110396, l='MpServer', x=-84,50, y=49,00, z=194,50], afo['Skeleton'/110397, l='MpServer', x=-84,50, y=49,00, z=193,50], abw['Pig'/130, l='MpServer', x=-69,59, y=69,00, z=199,59], agb['Zombie'/80933, l='MpServer', x=-63,50, y=26,00, z=295,50], aeh['Creeper'/107794, l='MpServer', x=-68,00, y=24,00, z=285,31], afo['Skeleton'/102440, l='MpServer', x=-112,50, y=35,00, z=238,50], afo['Skeleton'/111303, l='MpServer', x=-62,50, y=39,00, z=196,50], agb['Zombie'/62520, l='MpServer', x=-125,25, y=15,00, z=208,25], afo['Skeleton'/102439, l='MpServer', x=-105,53, y=36,00, z=235,09], aeh['Creeper'/103887, l='MpServer', x=-117,50, y=34,00, z=223,50], aeh['Creeper'/59635, l='MpServer', x=-68,72, y=24,00, z=286,16], aeh['Creeper'/111353, l='MpServer', x=-69,50, y=34,00, z=220,50], aeh['Creeper'/111354, l='MpServer', x=-69,50, y=34,00, z=221,50], afw['Spider'/23459, l='MpServer', x=-114,00, y=39,09, z=230,28], abk['Bat'/77315, l='MpServer', x=-135,71, y=30,00, z=198,75], abk['Bat'/77313, l='MpServer', x=-139,25, y=29,00, z=198,59], afo['Skeleton'/101630, l='MpServer', x=-42,50, y=21,00, z=173,50], abp['Horse'/55, l='MpServer', x=-148,03, y=66,00, z=292,97], abp['Horse'/54, l='MpServer', x=-147,03, y=65,00, z=288,97], aeh['Creeper'/77888, l='MpServer', x=-84,50, y=29,00, z=288,50], afo['Skeleton'/96347, l='MpServer', x=-49,50, y=36,00, z=203,13], abk['Bat'/105388, l='MpServer', x=-119,41, y=44,94, z=199,44], afo['Skeleton'/96346, l='MpServer', x=-51,72, y=35,00, z=197,81], afo['Skeleton'/108900, l='MpServer', x=-51,09, y=11,00, z=168,75], abp['Horse'/56, l='MpServer', x=-149,50, y=65,00, z=293,50], aeh['Creeper'/103890, l='MpServer', x=-117,50, y=34,00, z=220,50], agb['Zombie'/61900, l='MpServer', x=-104,50, y=19,00, z=308,50], aeh['Creeper'/110226, l='MpServer', x=-121,41, y=31,00, z=228,97], aeh['Creeper'/110225, l='MpServer', x=-123,50, y=31,00, z=231,50], agb['Zombie'/105009, l='MpServer', x=-74,88, y=41,00, z=242,66], aeh['Creeper'/110224, l='MpServer', x=-125,50, y=31,00, z=230,50], abk['Bat'/69, l='MpServer', x=-129,25, y=48,10, z=222,25], aeh['Creeper'/65753, l='MpServer', x=-86,50, y=48,00, z=309,50], abk['Bat'/56505, l='MpServer', x=-129,43, y=49,09, z=238,17], aeh['Creeper'/83744, l='MpServer', x=-70,50, y=29,00, z=260,50], afw['Spider'/77880, l='MpServer', x=-80,50, y=29,00, z=284,50], abp['Horse'/75, l='MpServer', x=-141,97, y=63,00, z=320,00], afo['Skeleton'/111391, l='MpServer', x=-87,50, y=30,00, z=290,81], agb['Zombie'/109476, l='MpServer', x=-82,50, y=12,00, z=322,50], afo['Skeleton'/106899, l='MpServer', x=-111,50, y=19,00, z=230,50], aeh['Creeper'/108932, l='MpServer', x=-106,50, y=27,00, z=308,50], aga['Witch'/110759, l='MpServer', x=-76,50, y=18,00, z=304,50], aeh['Creeper'/84964, l='MpServer', x=-79,50, y=17,00, z=306,50], aeh['Creeper'/84965, l='MpServer', x=-78,50, y=17,00, z=306,50], acz['Armor Stand'/92, l='MpServer', x=-117,50, y=132,00, z=238,50], cia['tintti214'/290, l='MpServer', x=-119,66, y=69,65, z=242,18], aeh['Creeper'/104800, l='MpServer', x=-77,59, y=56,00, z=203,03], agb['Zombie'/58045, l='MpServer', x=-134,50, y=15,00, z=191,50], abk['Bat'/88, l='MpServer', x=-105,25, y=33,10, z=229,75], agb['Zombie'/106910, l='MpServer', x=-82,94, y=51,00, z=195,47], aeh['Creeper'/104799, l='MpServer', x=-80,78, y=51,00, z=193,91], agb['Zombie'/111407, l='MpServer', x=-135,50, y=11,00, z=199,50], abk['Bat'/103, l='MpServer', x=-110,25, y=61,10, z=231,16], aga['Witch'/107028, l='MpServer', x=-117,50, y=33,00, z=239,50], afo['Skeleton'/112647, l='MpServer', x=-45,50, y=35,00, z=256,50], aga['Witch'/107027, l='MpServer', x=-118,41, y=33,00, z=235,81], afo['Skeleton'/112645, l='MpServer', x=-45,29, y=35,00, z=259,50], afo['Skeleton'/111393, l='MpServer', x=-85,50, y=29,00, z=293,50], afo['Skeleton'/107022, l='MpServer', x=-117,44, y=32,00, z=235,38], afo['Skeleton'/100113, l='MpServer', x=-117,50, y=33,00, z=246,50], abw['Pig'/126, l='MpServer', x=-76,16, y=69,00, z=190,00], afw['Spider'/103435, l='MpServer', x=-86,50, y=47,00, z=305,50], abk['Bat'/97605, l='MpServer', x=-135,17, y=30,30, z=198,71]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at cdz.a(SourceFile:308)
	at bsi.b(SourceFile:2252)
	at bsi.a(SourceFile:325)
	at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
	Minecraft Version: 14w32a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_67, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 488062736 bytes (465 MB) / 938475520 bytes (895 MB) up to 1908932608 bytes (1820 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Launched Version: 14w32a
	LWJGL: 2.9.1
	OpenGL: AMD Radeon HD 6570 GL version 4.4.12967 Compatibility Profile Context 14.200.1004.0, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: Yes
	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)

Samuel Shank 2014-08-06T21:03:45Z

confirmed for 14w32a