NullPointerException in ChunkLoaderManager

[pahimar]

NPE in ChunkLoaderManager. Using Forge 1224 with CodeChickenCore 1.0.4.29 and ChickenChunks 1.3.4.13

[13:23:02] [Server thread/ERROR]: Encountered an unexpected exception net.minecraft.util.ReportedException: Exception getting block type in world at net.minecraft.world.World.func_147439_a(World.java:354) ~[ahb.class:?] at com.rwtema.extrautils.ExtraUtils$ChunkloadCallback.ticketsLoaded(ExtraUtils.java:1870) ~[ExtraUtils$ChunkloadCallback.class:?] at net.minecraftforge.common.ForgeChunkManager.loadWorld(ForgeChunkManager.java:515) ~[ForgeChunkManager.class:?] at net.minecraftforge.common.ForgeInternalHandler.onDimensionLoad(ForgeInternalHandler.java:64) ~[ForgeInternalHandler.class:?] at cpw.mods.fml.common.eventhandler.ASMEventHandler_6_ForgeInternalHandler_onDimensionLoad_Load.invoke(.dynamic) ~[?:?] at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) ~[ASMEventHandler.class:?] at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) ~[EventBus.class:?] at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:230) ~[MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:258) ~[lt.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?] Caused by: java.lang.NullPointerException at codechicken.chunkloader.ChunkLoaderManager.getPlayerOrganiser(ChunkLoaderManager.java:661) ~[ChunkLoaderManager.class:?] at codechicken.chunkloader.ChunkLoaderManager.getOrganiser(ChunkLoaderManager.java:640) ~[ChunkLoaderManager.class:?] at codechicken.chunkloader.ChunkLoaderManager.addChunkLoader(ChunkLoaderManager.java:631) ~[ChunkLoaderManager.class:?] at codechicken.chunkloader.TileChunkLoaderBase.activate(TileChunkLoaderBase.java:108) ~[TileChunkLoaderBase.class:?] at codechicken.chunkloader.TileChunkLoaderBase.func_145829_t(TileChunkLoaderBase.java:35) ~[TileChunkLoaderBase.class:?] at net.minecraft.world.chunk.Chunk.func_150812_a(Chunk.java:886) ~[apx.class:?] at net.minecraft.world.chunk.Chunk.func_150813_a(Chunk.java:862) ~[apx.class:?] at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:500) ~[aqk.class:?] at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41) ~[ChunkIOProvider.class:?] at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12) ~[ChunkIOProvider.class:?] at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344) ~[AsynchronousExecutor.class:?] at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302) ~[AsynchronousExecutor.class:?] at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12) ~[ChunkIOExecutor.class:?] at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:126) ~[ms.class:?] at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101) ~[ms.class:?] at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199) ~[ms.class:?] at net.minecraft.world.World.func_72964_e(World.java:419) ~[ahb.class:?] at net.minecraft.world.World.func_147439_a(World.java:345) ~[ahb.class:?] ... 10 more

[Chicken-Bones]

Cause identified, potential solutions found, requesting replication steps to determine side effects and correct solution.

[pahimar]

Unsure of steps to replicate - this was on ForgeCraft 1 and kept the server down for a day. Took out ChickenChunks to allow the server to be playable again. Could visit us on IRC however to talk to the people playing to find out however.

[Chicken-Bones]

Guess I'll just go and figure out what invokes the async chunk loader.

[Slind14]

probably the same, in case it is chickenchunks: https://gist.githubusercontent.com/Slind14/7ba9784152cb4ff8dcfc/raw/15549046421677402644dd6c49f67f6b5498a650/gistfile1.txt https://gist.githubusercontent.com/Slind14/af1442047f3b0079c677/raw/86f2ca7bf42bc6d47f9057c5ec9df979043425a5/gistfile1.txt

[Chicken-Bones]

Not the same crash, weird interaction with Buildcraft, probably their issue,

[Slind14]

yeah sorry, for reference: https://github.com/BuildCraft/BuildCraft/issues/2326

[kevinkjt2000]

I am getting the same crash on my server only on startup. If I remove the chicken chunks mod and then boot, shutdown, put the mod back, boot again. Everything is fine. Chunkloaders can be placed and they seem to work fine. But if the server has to reboot it crashes. I could send you the world but it is pretty big ~1.5 GB zipped with 7z Anywhere here is the log with the crash appearing on line 40310. https://gist.github.com/kevinkjt2000/ffa40aeeed752bd7912d/raw/fml-server.log It seems as if an update to extra utils is causing this.

[nightstick24]

Any updates on this? Our server is experiencing the same crash-loop cycle.

log at http://pastebin.com/fKq1hTfm

It's virtually identical to both Kevin and Pahimar's.

[devryb]

Same issue here

[nightstick24]

Try looking at the Coordinates it provides you with in the full log, From mine:

Details: Found chunk: true Location: World: (-3871,83,9316), Chunk: (at 1,5,4 in -242,582; contains blocks -3872,0,9312 to -3857,255,9327), Region: (-8,18; contains chunks -256,576 to -225,607, blocks -4096,0,9216 to -3585,255,9727)

It says Location: World, this just means it's in the world it can be in any dimension though. For me this problem was solved by removing an Ender Quarry and Quarry from the Deep Dark. I'd check the coordinates provided in every dimension you have available to you.

[kevinkjt2000]

There is an Ender Quarry running in the deep dark on my server. So that might be part of the problem.

[devryb]

For me it was an actual chicken loader. we had to remove the mod from the server and start it up without it to get things running again. Then added the mod back afterwards.

[JayWood]

On my lunch break, had a similar crash when checking in on my server. http://pastebin.com/fKq1hTfm

Disabling the ChickenChunks mod solves the problem. Pack: FTB Inifinity 1.5.1

• ChickenChunks 1.7.10-1.3.4.19-universal
• CodeChickenCore 1.0.6.43

To be clear, I did not have to disable CCC, only CC.

Considering the amount of dimensions we have on the server, this can take some time to TP to every one and see if there's a block there, it'd be really nice if the log would specify a dimension :(

[callous4567]

Encountering the same issue

Pack : RR3.3

• Chicken Chunks 1.3.4.19
• CodeChickenCore 1.0.7.47

ExtraUtilities related crash.

[themechman]

I can confirm this as well has just occurred as well. Opening world in MCEdit and removing ticking entities does not help. Removing chuck loader did not restore.

Removing CC completely and putting it back has permitted proper startup.

[kevinkjt2000]

@themechman Don't forget to post versions :)

[themechman]

Chicken Chunks 1.3.4.19 and CodeChickenCore 1.0.7.47

It only happened once I'm afraid and I cannot reproduce despite best efforts. I've simply removed extrautil from my mods for now.