Minecraft Forums

I usually can figure out what the problem is and how to solve it just by looking at the the first paragraph or so of the crash report, yet this is very vauge. This crash only happens every so often, I highly doubt it being for me running out of memory because I have allocated 3 gigs and this happens at roughly, I want to say 50%? of used memory? All it says is:

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!
Time: 5/26/14 12:11 PM
Description: Exception in server tick loop
java.util.ConcurrentModificationException
at java.util.WeakHashMap$Ha­erator.nextEntry(Unknown Source)
at java.util.WeakHashMap$EntryIterator.next(Unknown Source)
at java.util.WeakHashMap$EntryIterator.next(Unknown Source)
at hats.common.core.TickHandlerServer.serverTick(TickHandlerServer.java:127)
at hats.common.core.TickHandlerServer.tickEnd(TickHandlerServer.java:56)
at cpw.mods.fml.common.SingleIntervalHandler.tickEnd(SingleIntervalHandler.java:34)
at cpw.mods.fml.common.FMLCommonHandler.tickEnd(FMLCommonHandler.java:141)
at cpw.mods.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:274)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:622)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)
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 8 (amd64) version 6.2
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 290552744 bytes (277 MB) / 1382547456 bytes (1318 MB) up to 2863661056 bytes (2731 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G
AABB Pool Size: 13715 (768040 bytes; 0 MB) allocated, 7473 (418488 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
FML: MCP v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 87 mods loaded, 87 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
BabyAnimalsModelSwapper{1.6.4} [BabyAnimalsModelSwapper] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{0.9.0.6} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LomLibCore{1.1.0} [LomLib:Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.6.1.5} [Not Enough Items] (NotEnoughItems 1.6.1.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_bspkrsCore{v3.05(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev3.05.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FamiliarsAPI{1.6.4} [Familiars API] (Familiars_API_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DamageIndicatorsMod{2.9.0.9} [Damage Indicators] (1.6.4 DamageIndicators v2.9.0.9.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
battlegear2{1.0.3.5} [Mine & Blade Battlegear 2 - Warcry] (1.6.4-MB_Battlegear2-Warcry-1.0.3.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FLabsBF{4.0} [BetterFurnaces] ([1.6.4]BetterFurnacesV4.0.1.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
TNFUltimateToolsForge{1.11.0.0} [Ultimate Tools] ([1.6.4]Ultimate Tools Universal by Sahdow169[1.11.0.0].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
cfm{3.2.5} [§4MrCrayfish's Furniture Mod] ([Forge]FurnitureModv3.2.5(1.6.4).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
nohero_morehealth{4.5} [More Health Forge] ([Forge]More Health Enhanced 5.0 Universal.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
animalbikes{2} [AnimalBikes] (AnimalBikes_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AnimationAPI{1.1.1} [AnimationAPI] (AnimationAPI v1.1.2 mc1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AntiPlantVirusMod{1.6.2-f-fix2} [Anti Plant Virus Mod] (AntiPlantVirus 1.6.2-f-fix2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ArmorBarMod{0.8.2} [Armor Bar Mod] (ArmorBarv0.8.2(1.6).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Backpack{1.18.17} [Backpack] (backpack-1.18.17-1.6.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
iChunUtil{2.4.0} [iChunUtil] (util^iChunUtil2.4.0(1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BackTools{2.0.1} [BackTools] (BackTools2.0.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BattleTowers{1.4.2} [Battle Towers] (BattleTowers_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiblioCraft{1.4.0} [BiblioCraft] (BiblioCraft[v1.4.0].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_BuffBarMod{0.7.1} [Buff Bar Mod] (BuffBarv0.8.3(1.6).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CakeIsALie{1.6.2} [CakeIsALie Mod] (CakeIsALie_mod_1-6-2&1.6.4(2).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ChestTransporter{1.1.7} [Chest Transporter] (chestTransporter-1.1.7-universal.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ChickenChunks{1.3.3.3} [ChickenChunks] (ChickenChunks 1.3.3.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ConfigMod{v1.0} [Extended Mod Config] (ConfigMod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoroAI{v1.0} [CoroAI] (CoroAI for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DLDungeonsJBG{1.0.0} [Doomlike Dungeons] (DoomlikeDungeons-1.0.0-MC1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MagicCarpet{1.2} [DrZhark's Magic Carpet Mod] (DrZharks MagicCarpet Mod v1.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DungeonPack{1.6.4} [DungeonPack] (DungeonPack 1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights{1.2.8} [Dynamic Lights] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_onFire{1.0.3} [Dynamic Lights on burning] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_creepers{1.0.3} [Dynamic Lights on Creepers] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_dropItems{1.0.5} [Dynamic Lights on ItemEntities] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_entityClasses{1.0.0} [Dynamic Lights on specified Entities] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_mobEquipment{1.0.3} [Dynamic Lights on Mob Equipment] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_flameArrows{1.0.0} [Dynamic Lights on Flame enchanted Arrows] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_otherPlayers{1.0.5} [Dynamic Lights Other Player Light] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DynamicLights_thePlayer{1.0.9} [Dynamic Lights Player Light] (DynamicLights_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ElementalCreepers{4.0.1} [Elemental Creepers] (Elemental_Creepers-universal-4.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
eplus{1.16.5b} [Enchanting Plus] (EnchantingPlus-1.16.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtendedRenderer{v1.0} [Extended Renderer] (ExtendedRenderer for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FamiliarsDefaultMobPack{1.6.4} [Familiars DefaultMobPack] (Familiars_DefaultMobPack_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FamiliarsExtendedFamPack{1.6.4} [Familiars ExtendedFamPack] (Familiars_ExtendedFamPack_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FamiliarsHerobrineFamPack{1.6.4} [Familiars HerobrineFamPack] (Familiars_HerobrineFamPack_1.6.4a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MobAmputation{2.0.1} [MobAmputation] (files^MobAmputation2.0.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LegendaryBeasts{a1.6.4.0} [Legendary Beasts] (Forge_LegendaryBeastsAlpha1.6.4.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
golemworld{@[email protected]} [Golem World] (GolemWorld(3).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HardcoreEnderExpansion{1.3.3} [Hardcore Ender Expansion] (HardcoreEnderExpansion.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Hats{2.1.1} [Hats] (Hats2.1.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
HostileWorlds{0.4} [Hostile Worlds] (Hostile Worlds v0.4 Alpha Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
InfernalMobs{1.3.9} [Infernal Mobs] (InfernalMobs_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IronChest{5.4.1.702} [Iron Chest] (ironchest-universal-1.6.4-5.4.1.702.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
lucky{4.2.1} [Lucky Block] (LuckyBlock_v4.2.1_1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LycanitesMobs{1.4.4 - MC 1.6.4} [Lycanites Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ArcticMobs{1.4.4 - MC 1.6.4} [Lycanites Arctic Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DemonMobs{1.4.4 - MC 1.6.4} [Lycanites Demon Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DesertMobs{1.4.4 - MC 1.6.4} [Lycanites Desert Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForestMobs{1.4.4 - MC 1.6.4} [Lycanites Forest Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
InfernoMobs{1.4.4 - MC 1.6.4} [Lycanites Inferno Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
JungleMobs{1.4.4 - MC 1.6.4} [Lycanites Jungle Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
PlainsMobs{1.4.4 - MC 1.6.4} [Lycanites Plains Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
SwampMobs{1.4.4 - MC 1.6.4} [Lycanites Swamp Mobs] (LycanitesMobsComplete 1.4.4 [1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mtmechs{0.27} [Magitek Mechs] (MagitekMechs0.27e-mc1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildMod{v1.0} [Build Mod] (ModBuild for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MoreEnchants{1.2} [MoreEnchants] (MoreEnchants-MC1.6-1.2.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Morph{0.6.0} [Morph] (Morph-Beta-0.6.0.zip) 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(1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
OreSpawn{164.13} [OreSpawn] (orespawn164v13.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ParticleMan{v1.0} [Particle Man] (Particle Man v1.4 Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
RodolRivalRebels{1.6.4} [Rival Rebels] (RivalRebels.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
DarrenPR_RottenFleshToLeather{1.0.0} [Rotten Flesh to Leather] (RottenFleshToLeather_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AS_Ruins{10.7} [Ruins Spawning System] (Ruins_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
SquickensMod{1.0.0} [Squickens] (SquickensMod_164(1).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_Unlimited{2.3} [mod_Unlimited] (Superheroes Unlimited Mod V2.3.3(1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
modteamcrafted{v2.2} [The Team Crafted Mod] (TeamCraftedMod_1.6.4-Olimation[2.7].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
telepads{1.6.4 v5} [Teleportation Pads] (TelePads 1.6.4 v5(1).zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TooMuchTNT{2.6} [TooMuchTNT] (TooMuchTNT v2.6) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
trollstuff{1.4.1.32 alpha} [TrollStuff] (TrollStuff 1.4.1 alpha - MC 1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AS_UpdateCheck{1.1.1} [AtomicStryker Update Check Mod] (UpdateCheckerMod_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AIBlock{v1.0} [AIBlock] (Weather v1.59 Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
WeatherMod{1.58} [Weather and Tornadoes] (Weather v1.59 Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mod_ZanMinimap{0.9.4} [Zan's Minimap] (ZansMinimap1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Profiler Position: N/A (disabled)
Vec3 Pool Size: 2704 (151424 bytes; 0 MB) allocated, 55 (3080 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['Werty6401'/217, l='The Ultimate Survival', x=-605.87, y=88.00, z=719.25]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Hashmapping? Perhaps this is with my voxelmap? I am familiar with the term of hashmapping yet I have little experience on what it really is or what to do with it, much less deal with this crash.

Thanks,
Werty

This is giving me difficulty, does anyone have experience on the matter?

Okay, I found out how to trigger the crash. I fly really fast with Mjolnir (Thors hammer from superheroes unlimited) and when I tp to a waypoint in voxelmap still going at a high velocity due to the fast flight, it crashes.

I cannot seem to find the source of the issue though, or how to fix it :/. Buggy mods

either you tickled minecraft too much, the kitten overpowered minecraft, the hashmap is broken, voxelmap did it, or you were just going too damn fast and it couldn't tp you properly