Villager breeding crash #544
Description
Breeding villagers with bread or other food causes the server to crash during the spawn of a new villager.
In addition to Cardboard, the server uses Farmer's delight and addons
Crash report is attached.
crash-2026-01-24_20.18.15-server.txt
---- Minecraft Crash Report ----
// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]
Time: 2026-01-24 20:18:15
Description: Ticking entity
java.lang.ClassCastException: class net.minecraft.class_1646 cannot be cast to class org.bukkit.entity.LivingEntity (net.minecraft.class_1646 and org.bukkit.entity.LivingEntity are in unnamed module of loader 'knot' @1bce4f0a)
at knot//net.minecraft.class_4111.handler$zdj000$cardboard$breadEvent(class_4111.java:535)
at knot//net.minecraft.class_4111.method_18970(class_4111.java:145)
at knot//net.minecraft.class_4111.method_20643(class_4111.java:93)
at knot//net.minecraft.class_4111.method_18975(class_4111.java:78)
at knot//net.minecraft.class_4111.method_18924(class_4111.java:26)
at knot//net.minecraft.class_4097.method_18923(class_4097.java:66)
at knot//net.minecraft.class_4103.method_46926(class_4103.java:72)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
at knot//net.minecraft.class_4103.method_18923(class_4103.java:72)
at knot//net.minecraft.class_4095.method_19545(class_4095.java:553)
at knot//net.minecraft.class_4095.method_19542(class_4095.java:498)
at knot//net.minecraft.class_1646.method_5958(class_1646.java:289)
at knot//net.minecraft.class_1308.method_6023(class_1308.java:786)
at knot//net.minecraft.class_1309.method_6007(class_1309.java:3110)
at knot//net.minecraft.class_1308.method_6007(class_1308.java:498)
at knot//net.minecraft.class_1296.method_6007(class_1296.java:130)
at knot//net.minecraft.class_1309.method_5773(class_1309.java:2818)
at knot//net.minecraft.class_1308.method_5773(class_1308.java:360)
at knot//net.minecraft.class_1646.method_5773(class_1646.java:330)
at knot//net.minecraft.class_3218.method_18762(class_3218.java:838)
at knot//net.minecraft.class_1937.method_18472(class_1937.java:490)
at knot//net.minecraft.class_3218.method_31420(class_3218.java:433)
at knot//net.minecraft.class_5574.method_31791(class_5574.java:53)
at knot//net.minecraft.class_3218.method_18765(class_3218.java:403)
at knot//net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:1145)
at knot//net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:1016)
at knot//net.minecraft.class_3176.method_3748(class_3176.java:318)
at knot//net.minecraft.server.MinecraftServer.method_76677(MinecraftServer.java:1049)
at knot//net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:771)
at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:301)
at java.base/java.lang.Thread.run(Thread.java:1583)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Server thread
Stacktrace:
at knot//net.minecraft.class_4111.handler$zdj000$cardboard$breadEvent(class_4111.java:535)
at knot//net.minecraft.class_4111.method_18970(class_4111.java:145)
at knot//net.minecraft.class_4111.method_20643(class_4111.java:93)
at knot//net.minecraft.class_4111.method_18975(class_4111.java:78)
at knot//net.minecraft.class_4111.method_18924(class_4111.java:26)
at knot//net.minecraft.class_4097.method_18923(class_4097.java:66)
at knot//net.minecraft.class_4103.method_46926(class_4103.java:72)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
at knot//net.minecraft.class_4103.method_18923(class_4103.java:72)
at knot//net.minecraft.class_4095.method_19545(class_4095.java:553)
at knot//net.minecraft.class_4095.method_19542(class_4095.java:498)
at knot//net.minecraft.class_1646.method_5958(class_1646.java:289)
at knot//net.minecraft.class_1308.method_6023(class_1308.java:786)
at knot//net.minecraft.class_1309.method_6007(class_1309.java:3110)
at knot//net.minecraft.class_1308.method_6007(class_1308.java:498)
at knot//net.minecraft.class_1296.method_6007(class_1296.java:130)
at knot//net.minecraft.class_1309.method_5773(class_1309.java:2818)
at knot//net.minecraft.class_1308.method_5773(class_1308.java:360)
at knot//net.minecraft.class_1646.method_5773(class_1646.java:330)
at knot//net.minecraft.class_3218.method_18762(class_3218.java:838)
at knot//net.minecraft.class_1937.method_18472(class_1937.java:490)
at knot//net.minecraft.class_3218.method_31420(class_3218.java:433)
at knot//net.minecraft.class_5574.method_31791(class_5574.java:53)
-- Entity being ticked --
Details:
Entity Type: minecraft:villager (net.minecraft.class_1646)
Entity ID: 515
Entity Name: Villager
Entity's Exact location: -3006.34, 68.00, 2206.49
Entity's Block location: World: (-3007,68,2206), Section: (at 1,4,14 in -188,4,137; chunk contains blocks -3008,-64,2192 to -2993,319,2207), Region: (-6,4; contains chunks -192,128 to -161,159, blocks -3072,-64,2048 to -2561,319,2559)
Entity's Momentum: 0.00, -0.08, 0.00
Entity's Passengers: []
Entity's Vehicle: null
Stacktrace:
at knot//net.minecraft.class_1937.method_18472(class_1937.java:490)
at knot//net.minecraft.class_3218.method_31420(class_3218.java:433)
at knot//net.minecraft.class_5574.method_31791(class_5574.java:53)
at knot//net.minecraft.class_3218.method_18765(class_3218.java:403)
at knot//net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:1145)
at knot//net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:1016)
at knot//net.minecraft.class_3176.method_3748(class_3176.java:318)
at knot//net.minecraft.server.MinecraftServer.method_76677(MinecraftServer.java:1049)
at knot//net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:771)
at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:301)
at java.base/java.lang.Thread.run(Thread.java:1583)
-- Affected level --
Details:
All players: 1 total; class_3222{name=Technohamster, id=47, pos=(-3005.296662624684, 68.0, 2209.8417750121453), mode=CREATIVE, permission=permission level: OWNERS}
Chunk stats: 2209
Level dimension: minecraft:overworld
Level spawn location: World: (0,50,0), Section: (at 0,2,0 in 0,3,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
Level time: 578214 game time, 700569 day time
Level name: world
Level game mode: Game mode: survival (ID 0). Hardcore: false. Commands: false
Level weather: Rain time: 5652 (now: false), thunder time: 80529 (now: false)
Known server brands: fabric, Cardboard (Paper+Fabric)
Removed feature flags:
Level was modded: true
Level storage version: 0x04ABD - Anvil
Loaded entity count: 324
Stacktrace:
at knot//net.minecraft.class_3218.method_8538(class_3218.java:1878)
at knot//net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:1148)
at knot//net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:1016)
at knot//net.minecraft.class_3176.method_3748(class_3176.java:318)
at knot//net.minecraft.server.MinecraftServer.method_76677(MinecraftServer.java:1049)
at knot//net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:771)
at knot//net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:301)
at java.base/java.lang.Thread.run(Thread.java:1583)
-- System Details --
Details:
Minecraft Version: 1.21.11
Minecraft Version ID: 1.21.11
Operating System: Linux (amd64) version 6.1.0-40-amd64
Java Version: 21.0.7, Ubuntu
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), Ubuntu
Memory: 4979261648 bytes (4748 MiB) / 8388608000 bytes (8000 MiB) up to 16777216000 bytes (16000 MiB)
CPUs: 12
Processor Vendor: AuthenticAMD
Processor Name: AMD Ryzen 5 3600 6-Core Processor
Identifier: AuthenticAMD Family 23 Model 113 Stepping 0
Microarchitecture: Zen 2
Frequency (GHz): -0.00
Number of physical packages: 1
Number of physical CPUs: 6
Number of logical CPUs: 12
Graphics card #0 name: unknown
Graphics card #0 vendor: unknown
Graphics card #0 VRAM (MiB): 0.00
Graphics card #0 deviceId: unknown
Graphics card #0 versionInfo: unknown
Virtual memory max (MiB): 8929.42
Virtual memory used (MiB): 7908.10
Swap memory total (MiB): 975.00
Swap memory used (MiB): 97.75
Space in storage for jna.tmpdir (MiB): <path not set>
Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): <path not set>
Space in storage for io.netty.native.workdir (MiB): <path not set>
Space in storage for java.io.tmpdir (MiB): available: 281352.69, total: 478662.97
Space in storage for workdir (MiB): available: 281352.69, total: 478662.97
JVM Flags: 2 total; -Xms8000M -Xmx16000M
Debug Flags: 0 total;
Fabric Mods:
badpackets: Bad Packets 0.11.2
cardboard: Cardboard 10
fabric-permissions-api-v0: fabric-permissions-api 0.5.0
io_leangen_geantyref_geantyref: geantyref 1.3.16
io_papermc_reflection-rewriter: reflection-rewriter 0.0.3
io_papermc_reflection-rewriter-proxy-generator: reflection-rewriter-proxy-generator 0.0.3
io_papermc_reflection-rewriter-runtime: reflection-rewriter-runtime 0.0.3
net_fabricmc_mapping-io: mapping-io 0.8.0
net_md-5_specialsource: SpecialSource 1.11.2
net_neoforged_autorenamingtool: AutoRenamingTool 2.0.3
net_neoforged_installertools_cli-utils: cli-utils 2.1.4
net_neoforged_srgutils: srgutils 1.0.9
org_spongepowered_configurate-core: configurate-core 4.2.0
org_spongepowered_configurate-hocon: configurate-hocon 4.2.0
cloth-config: Cloth Config v20 21.11.153
cloth-basic-math: cloth-basic-math 0.6.1
fabric-api: Fabric API 0.141.2+1.21.11
fabric-api-base: Fabric API Base 1.0.5+4ebb5c083e
fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.6.113+1fb1cde93e
fabric-biome-api-v1: Fabric Biome API (v1) 17.1.1+4fc5413f3e
fabric-block-api-v1: Fabric Block API (v1) 1.1.10+4ebb5c083e
fabric-block-view-api-v2: Fabric BlockView API (v2) 1.0.39+4ebb5c083e
fabric-command-api-v2: Fabric Command API (v2) 2.4.7+6b42a6003e
fabric-content-registries-v0: Fabric Content Registries (v0) 10.2.14+4fc5413f3e
fabric-convention-tags-v1: Fabric Convention Tags 2.1.55+7f945d5b3e
fabric-convention-tags-v2: Fabric Convention Tags (v2) 2.17.3+8ef948ba3e
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.3.23+4ebb5c083e
fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 1.8.47+eed0806f3e
fabric-data-generation-api-v1: Fabric Data Generation API (v1) 23.4.0+69974c4e3e
fabric-dimensions-v1: Fabric Dimensions API (v1) 4.0.28+4fc5413f3e
fabric-entity-events-v1: Fabric Entity Events (v1) 3.1.1+1d0ab4303e
fabric-events-interaction-v0: Fabric Events Interaction (v0) 4.1.0+3b89ecf63e
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 2.0.3+4fc5413f3e
fabric-item-api-v1: Fabric Item API (v1) 11.5.20+d0c46b9e3e
fabric-item-group-api-v1: Fabric Item Group API (v1) 4.2.36+4fc5413f3e
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 2.6.15+4ebb5c083e
fabric-loot-api-v2: Fabric Loot API (v2) 3.0.73+3f89f5a53e
fabric-loot-api-v3: Fabric Loot API (v3) 2.0.20+78c8b4663e
fabric-message-api-v1: Fabric Message API (v1) 6.1.12+4ebb5c083e
fabric-networking-api-v1: Fabric Networking API (v1) 5.1.5+ae1e07683e
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 21.1.39+4fc5413f3e
fabric-particles-v1: Fabric Particles (v1) 4.2.11+4fc5413f3e
fabric-recipe-api-v1: Fabric Recipe API (v1) 8.2.3+4ebb5c083e
fabric-registry-sync-v0: Fabric Registry Sync (v0) 6.2.5+1718722b3e
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 3.1.43+4ebb5c083e
fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 5.0.35+4fc5413f3e
fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.3.4+4fc5413f3e
fabric-resource-loader-v1: Fabric Resource Loader (v1) 1.0.10+78c8b4663e
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.3.161+4fc5413f3e
fabric-serialization-api-v1: Fabric Serialization API (v1) 1.0.5+4ebb5c083e
fabric-tag-api-v1: Fabric Tag API (v1) 1.2.20+4fc5413f3e
fabric-transfer-api-v1: Fabric Transfer API (v1) 6.0.24+4fc5413f3e
fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 7.1.0+014c8cec3e
fabricloader: Fabric Loader 0.18.4
mixinextras: MixinExtras 0.5.0
farmersdelight: Farmer's Delight 1.21.11-3.4.6+refabricated
mm: Manningham Mills 2.3
icommon-bundle: iCommonLib-bundle 107
icommon: iCommonLib 1.21.9/1.21.10 107+1.21.9
icommon-api-configuration: iCommon Config API 1.0
java: OpenJDK 64-Bit Server VM 21
jei: Just Enough Items 27.4.0.15
justenoughprofessions: Just Enough Professions (JEP) 10.0.0
minecraft: Minecraft 1.21.11
moredelight: More Delight 25.12.10-1.21.11-fabric
rusticdelight: Rustic Delight 1.5.3
storagedelight: Storage Delight 25.12.9-1.21.11-fabric
wthit: wthit 18.2.0
Server Running: true
Player Count: 1 / 20; [class_3222['Technohamster'/47, l='ServerLevel[world]', x=-3005.30, y=68.00, z=2209.84]]
Active Data Packs: vanilla, fabric-convention-tags-v2, farmersdelight, moredelight, rusticdelight, storagedelight, file/VanillaTweaks_c393420_MC1.21-1.21.11.zip, file/cauldron concrete v3.0.8 (MC 1.21-1.21.11).zip, file/cauldron mud v1.0.8 (MC 1.21-1.21.11).zip, file/fast leaf decay v2.0.20 (MC 1.21-1.21.11).zip, file/mini blocks v1.1.5 (MC 1.21-1.21.11).zip, file/more mob heads v2.18.0 (MC 1.21-1.21.11).zip, file/multiplayer sleep v2.6.15 (MC 1.21-1.21.11).zip, file/player head drops v1.1.15 (MC 1.21-1.21.11).zip, file/storm channeling v1.0.7 (MC 1.21-1.21.11).zip, file/xp bottling v1.1.16 (MC 1.21-1.21.11).zip
Available Data Packs: fabric-convention-tags-v2, farmersdelight, file/VanillaTweaks_c393420_MC1.21-1.21.11.zip, file/bukkit, file/cauldron concrete v3.0.8 (MC 1.21-1.21.11).zip, file/cauldron mud v1.0.8 (MC 1.21-1.21.11).zip, file/fast leaf decay v2.0.20 (MC 1.21-1.21.11).zip, file/mini blocks v1.1.5 (MC 1.21-1.21.11).zip, file/more mob heads v2.18.0 (MC 1.21-1.21.11).zip, file/multiplayer sleep v2.6.15 (MC 1.21-1.21.11).zip, file/player head drops v1.1.15 (MC 1.21-1.21.11).zip, file/storm channeling v1.0.7 (MC 1.21-1.21.11).zip, file/xp bottling v1.1.16 (MC 1.21-1.21.11).zip, minecart_improvements, moredelight, redstone_experiments, rusticdelight, storagedelight, trade_rebalance, vanilla
Enabled Feature Flags: minecraft:vanilla
World Generation: Stable
World Seed: -8898113153401735060
Suppressed Exceptions: ~~NONE~~
Is Modded: Definitely; Server brand changed to 'Cardboard (Paper+Fabric)'
Type: Dedicated Server (map_server.txt)