Litematica

Litematica

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ConcurrentModificationException in Fabric 1.14.4

Kermalis opened this issue ยท 3 comments

commented

Hello, me again. This crash came immediately after turning on all rendering with my hotkey. I've used it hundreds or thousands of times before and this is the first time that toggling has crashed. Here's the report:

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 8/29/19 7:07 PM
Description: Unexpected error

java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at fi.dy.masa.litematica.render.schematic.WorldRendererSchematic.renderEntities(WorldRendererSchematic.java:796)
	at fi.dy.masa.litematica.render.LitematicaRenderer.piecewiseRenderEntities(LitematicaRenderer.java:444)
	at net.minecraft.class_761.handler$onPostRenderEntities$zbe000(class_761.java:3297)
	at net.minecraft.class_761.method_3271(class_761.java:1034)
	at net.minecraft.class_757.method_3178(class_757.java:1207)
	at net.minecraft.class_757.method_3188(class_757.java:1032)
	at net.minecraft.class_757.method_3192(class_757.java:792)
	at net.minecraft.class_310.method_1523(class_310.java:954)
	at net.minecraft.class_310.method_1514(class_310.java:410)
	at net.minecraft.client.main.Main.main(Main.java:155)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
	at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:129)
	at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)


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

-- Head --
Thread: Client thread
Stacktrace:
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at fi.dy.masa.litematica.render.schematic.WorldRendererSchematic.renderEntities(WorldRendererSchematic.java:796)
	at fi.dy.masa.litematica.render.LitematicaRenderer.piecewiseRenderEntities(LitematicaRenderer.java:444)
	at net.minecraft.class_761.handler$onPostRenderEntities$zbe000(class_761.java:3297)
	at net.minecraft.class_761.method_3271(class_761.java:1034)
	at net.minecraft.class_757.method_3178(class_757.java:1207)
	at net.minecraft.class_757.method_3188(class_757.java:1032)

-- Affected level --
Details:
	All players: 2 total; [class_746['Kermalis'/23092, l='MpServer', x=3090.93, y=67.00, z=264.88], class_745['tukku473'/18115, l='MpServer', x=3081.50, y=73.56, z=243.54]]
	Chunk stats: Client Chunk Cache: 529, 324
	Level dimension: minecraft:overworld
	Level name: MpServer
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (-16,64,48), Chunk: (at 0,4,0 in -1,3; contains blocks -16,0,48 to -1,255,63), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 23656819 game time, 28134932 day time
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at net.minecraft.class_638.method_8538(class_638.java:574)
	at net.minecraft.class_310.method_1587(class_310.java:1923)
	at net.minecraft.class_310.method_1514(class_310.java:430)
	at net.minecraft.client.main.Main.main(Main.java:155)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
	at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:129)
	at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)

-- System Details --
Details:
	Minecraft Version: 1.14.4
	Minecraft Version ID: 1.14.4
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1805243792 bytes (1721 MB) / 4060086272 bytes (3872 MB) up to 4294967296 bytes (4096 MB)
	CPUs: 8
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Launched Version: fabric-loader-0.4.8+build.157-1.14.4
	LWJGL: 3.2.2 build 10
	OpenGL: GeForce GTX 960M/PCIe/SSE2 GL version 4.6.0 NVIDIA 436.02, NVIDIA Corporation
	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: Definitely; Client brand changed to 'fabric'
	Type: Client (map_client.txt)
	Resource Packs: vanilla, file/JUM.zip, file/BrothersJohnsonUnshaders.zip (incompatible)
	Current Language: English (US)
	CPU: 8x Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz```
commented

@maruohon Just got the error today:

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

Time: 12/5/19 5:49 PM
Description: Unexpected error

java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at fi.dy.masa.litematica.render.schematic.WorldRendererSchematic.renderEntities(WorldRendererSchematic.java:796)
	at fi.dy.masa.litematica.render.LitematicaRenderer.piecewiseRenderEntities(LitematicaRenderer.java:444)
	at net.minecraft.class_761.handler$onPostRenderEntities$zlf000(class_761.java:3797)
	at net.minecraft.class_761.method_3271(class_761.java:706)
	at net.minecraft.class_757.redirect$renderEntitiesNoShake$zke000(class_757.java:1904)
	at net.minecraft.class_757.method_3178(class_757.java:859)
	at net.minecraft.class_757.method_3188(class_757.java:766)
	at net.minecraft.class_757.method_3192(class_757.java:630)
	at net.minecraft.class_310.method_1523(class_310.java:954)
	at net.minecraft.class_310.method_1514(class_310.java:410)
	at net.minecraft.client.main.Main.main(Main.java:155)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:188)
	at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:131)
	at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)


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

-- Head --
Thread: Client thread
Stacktrace:
	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
	at java.util.ArrayList$Itr.next(ArrayList.java:851)
	at fi.dy.masa.litematica.render.schematic.WorldRendererSchematic.renderEntities(WorldRendererSchematic.java:796)
	at fi.dy.masa.litematica.render.LitematicaRenderer.piecewiseRenderEntities(LitematicaRenderer.java:444)
	at net.minecraft.class_761.handler$onPostRenderEntities$zlf000(class_761.java:3797)
	at net.minecraft.class_761.method_3271(class_761.java:706)
	at net.minecraft.class_757.redirect$renderEntitiesNoShake$zke000(class_757.java:1904)
	at net.minecraft.class_757.method_3178(class_757.java:859)
	at net.minecraft.class_757.method_3188(class_757.java:766)

-- Affected level --
Details:
	All players: 1 total; [class_746['[censored]'/392811, l='MpServer', x=5189.45, y=176.95, z=5256.83]]
	Chunk stats: Client Chunk Cache: 1521, 1155
	Level dimension: minecraft:overworld
	Level name: MpServer
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (-167,105,-102), Chunk: (at 9,6,10 in -11,-7; contains blocks -176,0,-112 to -161,255,-97), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 159870266 game time, 1972023 day time
	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
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at net.minecraft.class_638.method_8538(class_638.java:421)
	at net.minecraft.class_310.method_1587(class_310.java:1923)
	at net.minecraft.class_310.method_1514(class_310.java:430)
	at net.minecraft.client.main.Main.main(Main.java:155)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:188)
	at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:131)
	at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)

-- System Details --
Details:
	Minecraft Version: 1.14.4
	Minecraft Version ID: 1.14.4
	Operating System: Mac OS X (x86_64) version 10.14.6
	Java Version: 1.8.0_74, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 693160000 bytes (661 MB) / 1610612736 bytes (1536 MB) up to 2147483648 bytes (2048 MB)
	CPUs: 4
	JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Fabric Mods: 
		carpet: Carpet Mod in Fabric 1.2.4
		fabric: Fabric API 0.4.1+build.245-1.14
		fabric-api-base: Fabric API Base 0.1.1+2ac73e7242
		fabric-biomes-v1: Fabric Biomes (v1) 0.1.0+591e97ae42
		fabric-commands-v0: Fabric Commands (v0) 0.1.1+591e97ae42
		fabric-containers-v0: Fabric Containers (v0) 0.1.2+591e97ae42
		fabric-content-registries-v0: Fabric Content Registries (v0) 0.1.1+591e97ae42
		fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.1+591e97ae42
		fabric-dimensions-v1: fabric-dimensions-v1 0.1.0+369ab22e42
		fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.1.1+591e97ae42
		fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.1.1+591e97ae42
		fabric-item-groups-v0: Fabric Item Groups (v0) 0.1.0+591e97ae42
		fabric-keybindings-v0: Fabric Key Bindings (v0) 0.1.1+591e97ae42
		fabric-loot-tables-v1: Fabric Loot Tables (v1) 0.1.0+591e97ae42
		fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.0+591e97ae42
		fabric-models-v0: Fabric Models (v0) 0.1.0+591e97ae42
		fabric-networking-blockentity-v0: Fabric Networking Block Entity (v0) 0.2.0+c877038942
		fabric-networking-v0: Fabric Networking (v0) 0.1.3+591e97ae42
		fabric-object-builders-v0: Fabric Object Builders (v0) 0.1.1+591e97ae42
		fabric-particles-v1: fabric-particles-v1 0.1.1+c877038942
		fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.2.2+591e97ae42
		fabric-renderer-api-v1: Fabric Renderer API (v1) 0.1.1+591e97ae42
		fabric-renderer-indigo: Fabric Renderer - Indigo 0.1.13+591e97ae42
		fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.1.1+c877038942
		fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.2+36f27aa342
		fabric-rendering-v0: Fabric Rendering (v0) 0.1.1+591e97ae42
		fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.1.3+591e97ae42
		fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 0.1.1+591e97ae42
		fabric-textures-v0: Fabric Textures (v0) 0.1.4+591e97ae42
		fabricloader: Fabric Loader 0.6.3+build.168
		litematica: Litematica 0.0.0-dev.20191205.170637
		malilib: MaLiLib 0.10.0-dev.20
		minecraft: Minecraft 1.14.4
	Launched Version: fabric-loader-0.6.3+build.168-1.14.4
	LWJGL: 3.2.1 build 12
	OpenGL: Intel(R) Iris(TM) Graphics 6100 GL version 2.1 INTEL-12.10.14, 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.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'fabric'
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	CPU: 4x Intel(R) Core(TM) i5-5257U CPU @ 2.70GHz
commented

Upload a world and say coordinates at which turning on rendering crashes the game.

commented

I actually didn't move when I logged back in (because of your reply, I wanted to test just in case) and tried to toggle rendering again, and it didn't crash. I wouldn't say a specific world or position causes it because it's a concurrent exception, which is caused by multi-threading issues and will be hard to reproduce (see how many times I've toggled rendering on and off before receiving this issue for the first time)
Despite being hard to reproduce, it might not be hard to pinpoint the cause because of the stack trace