Minecraft Forums

---- Minecraft Crash Report ----
// Ouch. That hurt

Time: 11/25/14 8:27 PM
Description: Exception in server tick loop

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at net.minecraft.entity.EntityTracker.func_72788_a(EntityTracker.java:259)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:680)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:175)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)


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

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 246394504 bytes (234 MB) / 1445068800 bytes (1378 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms1024m -Xmx2G
AABB Pool Size: 6513 (364728 bytes; 0 MB) allocated, 6163 (345128 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 4, tallocated: 58
FML: MCP v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 Optifine OptiFine_1.6.4_HD_U_D1 47 mods loaded, 47 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{6.4.49.965} [Forge Mod Loader] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{9.11.1.965} [Minecraft Forge] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.6.1.9} [Not Enough Items] (NotEnoughItems-1.6.4-1.6.1.9-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
shadersmod{2.2.1} [GLSL Shaders Mod] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
lucky{4.2.1} [Lucky Block] ([1-6-4]_Lucky_Block_v4-2-1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BetterCrafting{3.0.1} [BetterCrafting] ([1.6.4] BetterCrafting v3.0.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
bspkrsCore{v4.3(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev4.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v4.3(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev4.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ReiMinimap{v3.4_01 [1.6.2]} [mod_ReiMinimap] ([1.6.4]ReiMinimap_v3.4_01 (1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TreeCapitator{Forge 1.6.4.r02} [Treecapitator] ([1.6.4]TreeCapitator.Forge.1.6.4.r02.Universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Agriculture{1.0.0} [Agriculture] (Agriculture-1.6.4-1.2.15.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AnimatedPlayer{1.3.0} [Animated Player Mod] (Animated_Player_v1.3.0_mc1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AnimationAPI{1.1.1} [AnimationAPI] (AnimationAPI v1.1.2 mc1.6.4 (1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{1.27.34} [Backpack] (backpack-1.27.34-1.6.x.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Breeds{1.6.4 v5} [ModBreeds] (BetterBreeds 1.6.4 v5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{1.2.1} [Biomes O' Plenty] (BiomesOPlenty-universal-1.6.4-1.2.1.416.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{4.2.2} [BuildCraft] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{4.2.2} [BC Builders] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{4.2.2} [BC Energy] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{4.2.2} [BC Factory] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{4.2.2} [BC Transport] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{4.2.2} [BC Silicon] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Additional-Buildcraft-Objects{1.0.7.560} [Additional Buildcraft Objects] (buildcraft-Z-additional-buildcraft-objects-1.0.7.560.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHCore{2.0.0.2} [CoFH Core] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHLoot{2.0.0.2} [CoFH Loot] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHMasquerade{2.0.0.2} [CoFH Masquerade] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHSocial{2.0.0.2} [CoFH Social] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHWorld{2.0.0.2} [CoFH World] (CoFHCore-2.0.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
craftguide{1.5.2} [CraftGuide] (CraftGuide-1.6.7.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CustomSpawner{3.0.0} [DrZhark's CustomSpawner] (CustomMobSpawner 3.0.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoCreatures{6.1.0} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
iChunUtil{2.4.0} [iChunUtil] (iChunUtil2.4.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Grinder{2.0.0} [Grinder] (files^AttachableGrinder2.0.0 (1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Hats{2.1.5} [Hats] (Hats2.1.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HatStand{2.1.0} [HatStand] (HatStand2.1.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
JoypadSplitscreenMod{1.6.4-0.0952} [Joypad / SplitScreen Mod] (JoypadMod-1.6.4-0.0952.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mariculture{1.2.0i} [Mariculture] (Mariculture-1.6.4-1.2.0i.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mca{3.6.0} [Minecraft Comes Alive] (MCA-3.6.0_MC-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
cfm{3.3.4} [MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.3.4(1.6.4).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MutantCreatures{1.4.4} [Mutant Creatures] (Mutant_Creatures_v1.4.4_mc1.6.4 (2).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
gibby_pun{1.5} [The Pun Mod] (PunMod 1.6.4-1.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
RopesPlus{1.5.4} [Ropes+] (RopePlus_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Statues{2.0.2} [Statues] (statues-1.6.4-2.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Torched{2.0.0} [Torched] (Torched-Mod-1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TwilightForest{1.20.5} [The Twilight Forest] (twilightforest-1.6.4-1.20.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 10345 (579320 bytes; 0 MB) allocated, 4767 (266952 bytes; 0 MB) used
Player Count: 2 / 8; [EntityPlayerMP['LordLacrimosa'/3503, l='No oceans', x=117.58, y=81.00, z=-245.09], EntityPlayerMP['Jose--session'/95992, l='No oceans', x=79.82, y=64.00, z=-314.49]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Is the entire server crashing or just you?

Quote from zohar101»

Is the entire server crashing or just you?

It seems it's just me. My friend usually just gets disconnected while my entire client crashes. I've been trying to fix this for days :c someone said it may be mca and biomes o plenty but I really hope not... Any ideas?

I can't tell which particular mod or plugin (if your server has any) is doing it or if it's a mod at all. Quick googling pulls up this:
http://forums.technicpack.net/topic/48117-exception-in-server-tick-loop-after-updating-hexxit-72813/

which is pretty unhelpful all things considered.This one is similarly vague when applied to you:
http://www.minecraftforge.net/forum/index.php/topic,7113.0.html

There are similar errors but I can't tell if they're the same issue but different looking cause it's different system/pack/server or if they're something else entirely.

I couldn't find a solution there. I still have a feeling, though I really hope this isn't the case, that Minecraft comes alive might be screwing up my game. Still cannot figure it out for sure though. Hoping someone else can spot a problem in that crash report I posted. I'm not experienced with crash reports...at all.. lol I tried reading it all and did not see anything "wrong"

Yeah the entity thing could suggest entity related mods like MCA or Mo'creatures or Better Breeds. But I don't know if that actually suggests mod related entities at all. LIke for example:

https://bugs.mojang.com/browse/MC-64472

https://bugs.mojang.com/browse/MC-509

may or may not be the same, and look different cause it's a vanilla server. I can't really tell, sorry.

Ahhh...so I'm actually looking more at the top of the crash report and not the whole thing, eh? That's good to know. Again I have absolutely no experience reading crash reports. Hmm.. I hope it's better breeds and not MCA. Though... the game sometimes crashes when a friend tries to interact with a villager (mca)

Well no, not neccessarily. But I don't see any of your mods erroring, and I'm assuming that all your mod versions are correct though maybe I shouldn't. Did you double and triple check that every mod you have is for 1.6.4?
I assumed you just got a copy of the mod and config folder from the server administrator. If this is not the case, then you definitely have to check all your mod versions. However, if they differ from the server, you shouldn't have been able to log on so I discounted this as a possibility.
I see your Craftguide (which is a client and not server mod, so it was likely added by you) is for MC 1.5.2. And so on. Careful what you're putting in. Rei's minimap is for 1.6.2. That's also a client mod....

This "Server" is actually me opening up a LAN game. It's just me and one other person. I'll try updating those two mods. Though I do feel it may be entity related as well... still leaning towards villagers, but I really hope it isn't. It's gotten to the point where these mods have spoiled me and I can't remove many of them lol like Minecraft comes alive.
Weird...reis minimap is actually 1.6.4 according to the mod itself. As well as craft guide. I just checked them both out, and googled any updates. I have the latest versions of both for 1.6.4

Oh. Er...I have never set up the server on my own computer, only on 3rd party hosting sites, so I don't know the procedure, but normally, client mods like craftguide, Rei's minimap and so on cannot go into the server mod folder. How that works for LAN games I do not know. You'd have to wait for someone else to respond.

However, if you're the one running the server, that makes it relatively easy. You can then start taking mods down one by one until it goes away and once you've isolated the problematic mod, report to the right author.