1.7.10 Compatibility issue between MCA 4.1.5 and Ars Magica 2
DLemberg opened this issue ยท 1 comments
I'm seeing periodic crashes on a 1.7.10 server with Forge 1291, Java 1.8, MCA 4.1.5, and Ars Magica 2 1.4.008 Dark Mage. Error message is always the same - a ticking entity null pointer exception in the EntityAIAttackOnCollide function, and the entity is always a Dark Mage.
I've found an easy way to reproduce the problem. If you have no other mods installed other than Ars Magica 2 and MCA (plus their two dependencies, RadixCore and Animation API), and you start a new world, find a village with MCA guards, and use a dark mage egg to spawn a dark mage, the guards will attack the dark mage. As soon as the dark mage tries to strike the guard back, the game crashes with the ticking entity null pointer exception.
I reported this on Ars Magica 2's github page, and heard this back from Mithion: "Interesting. I'd try reporting this to the MCA devs...mainly because dark mages don't have an EntityAIAttackOnCollide task. Which means it might be on their end. I'll take a quick look on this end too and see if it's related to something I am doing."
Here is an example crash report when this happens, albeit from a world with more mods installed:
---- Minecraft Crash Report ----
// This doesn't make any sense!
Time: 2/6/15 8:19 AM
Description: Ticking entity
java.lang.NullPointerException: Ticking entity
at net.minecraft.entity.ai.EntityLookHelper.func_75651_a(SourceFile:18)
at net.minecraft.entity.ai.EntityAIAttackOnCollide.func_75246_d(EntityAIAttackOnCollide.java:93)
at net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:103)
at net.minecraft.entity.EntityLiving.func_70619_bc(EntityLiving.java:540)
at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:1774)
at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:367)
at net.minecraft.entity.monster.EntityMob.func_70636_d(SourceFile:25)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1611)
at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:206)
at net.minecraft.entity.monster.EntityMob.func_70071_h_(SourceFile:30)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
A detailed walkthrough of the error, its code path and all known details is as follows:
-- Head --
Stacktrace:
at net.minecraft.entity.ai.EntityLookHelper.func_75651_a(SourceFile:18)
at net.minecraft.entity.ai.EntityAIAttackOnCollide.func_75246_d(EntityAIAttackOnCollide.java:93)
at net.minecraft.entity.ai.EntityAITasks.func_75774_a(SourceFile:103)
at net.minecraft.entity.EntityLiving.func_70619_bc(EntityLiving.java:540)
at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:1774)
at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:367)
at net.minecraft.entity.monster.EntityMob.func_70636_d(SourceFile:25)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1611)
at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:206)
at net.minecraft.entity.monster.EntityMob.func_70071_h_(SourceFile:30)
at net.minecraft.world.World.func_72866_a(World.java:2070)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:648)
at net.minecraft.world.World.func_72870_g(World.java:2034)
-- Entity being ticked --
Details:
Entity Type: arsmagica2.MobDarkMage (am2.entities.EntityDarkMage)
Entity ID: 84
Entity Name: Dark Mage
Entity's Exact location: -84.50, 67.00, 960.23
Entity's Block location: World: (-85,67,960), Chunk: (at 11,4,0 in -6,60; contains blocks -96,0,960 to -81,255,975), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
Entity's Momentum: 0.00, -0.08, 0.00
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1887)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
-- Affected level --
Details:
Level name: world
All players: 1 total; [EntityPlayerMP['danlemberg'/165, l='world', x=-164.86, y=78.00, z=973.40]]
Chunk stats: ServerChunkCache: 999 Drop: 0
Level seed: 5089460919707135225
Level generator: ID 04 - BIOMESOP, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (44,64,1020), Chunk: (at 12,4,12 in 2,63; contains blocks 32,0,1008 to 47,255,1023), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
Level time: 1415024 game time, 1415024 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 23992 (now: false), thunder time: 93657 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 293894064 bytes (280 MB) / 806354944 bytes (769 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 95
FML: MCP v9.05 FML v7.10.85.1286 Minecraft Forge 10.13.2.1286 37 mods loaded, 37 mods active
mcp{9.05} Minecraft Coder Pack Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.85.1286} Forge Mod Loader Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.2.1286} Minecraft Forge Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{1.0.4.35} CodeChicken Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.0.4.83} Not Enough Items Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
bspkrsCore{6.15} bspkrsCore Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Treecapitator{1.7.10} Treecapitator Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AnimationAPI{1.2.4} AnimationAPI Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
arsmagica2{1.4.0.005} Ars Magica 2 Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfare{2.4.83-beta-MC1.7.10} Ancient Warfare Core Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfareAutomation{2.4.83-beta-MC1.7.10} Ancient Warfare Automation Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfareNEIPlugin{2.4.83-beta-MC1.7.10} Ancient Warfare NEI Plugin Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfareNpc{2.4.83-beta-MC1.7.10} Ancient Warfare NPCs Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfareStructure{2.4.83-beta-MC1.7.10} Ancient Warfare Structures Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AncientWarfareVehicle{2.4.83-beta-MC1.7.10} Ancient Warfare Vehicles Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AppleCore{1.0.2} AppleCore Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mantle{1.7.10-0.3.2.jenkins184} Mantle Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Natura{2.2.0} Natura Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BiomesOPlenty{2.1.0} Biomes O' Plenty Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
AWWayofTime{v1.3.0a} Blood Magic: Alchemical Wizardry Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
chocolateQuest{0.0} Chocolate Quest Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
props{1.11} Decocraft Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
eplus{3.0.2-d} Enchanting Plus Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IguanaTweaks{1.7.10-Beta-19} Iguana Tweaks Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IronChest{6.0.62.742} Iron Chest Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Waila{1.5.8} Waila Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
JABBA{1.2.0a} JABBA Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
journeymap{5.0.1} JourneyMap Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
radixcore{1.3.4} RadixCore Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
mca{4.1.5} Minecraft Comes Alive Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MutantCreatures{1.4.8} Mutant Creatures Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Roguelike{1.3.5} Roguelike Dungeons Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
supercraftingframe{1.7.10.2} Super Crafting Frame Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
TwilightForest{2.3.2} The Twilight Forest Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
chunkbase_villageinfo_ssp{2.1} Village Info (SSP) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
WailaHarvestability{1.1.1} Waila Harvestability Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
witchery{0.22.0} Witchery Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mantle Environment: Environment healthy.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [EntityPlayerMP['danlemberg'/165, l='world', x=-164.86, y=78.00, z=973.40]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'
