A detailed walkthrough of the error, its code path and all known details is as follows:
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-- Head --
Thread: Server thread
Stacktrace:
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.defineClassFwd(KnotClassLoa
der.java:186)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDel
egate.java:347)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelega
te.java:218)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.j
ava:145)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at net.barribob.boss.block.MobWardBlock$Companion.canSpawn(MobWardBlock.java:245)
at net.minecraft.class_1948.handler$zzg000$canSpawn(class_1948.java:1123)
at net.minecraft.class_1948.method_24934(class_1948.java:336)
at net.minecraft.class_1948.method_24930(class_1948.java:259)
at net.minecraft.class_1948.method_8663(class_1948.java:197)
at net.minecraft.class_1948.method_27821(class_1948.java:185)
at net.minecraft.class_3215.method_20801(class_3215.java:388)
at net.minecraft.class_3215$$Lambda$4826/1166119341.accept(Unknown Source)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at net.minecraft.class_3215.method_14161(class_3215.java:368)
at net.minecraft.class_3215.method_12127(class_3215.java:337)
at net.minecraft.class_3218.method_18765(class_3218.java:353)
-- Affected level --
Details:
All players: 1 total; [class_3222['itsxyquqe'/68, l='ServerLevel[elden ring]', x=-86.50, y=76.00, z=178.50]]
Chunk stats: ServerChunkCache: 2025
Level dimension: minecraft:overworld
Level spawn location: World: (-80,77,177), Chunk: (at 0,4,1 in -5,11; contains blocks -80,0,176 to -65,255,191), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 33 game time, 33 day time
Level name: elden ring
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Level weather: Rain time: 179937 (now: false), thunder time: 55814 (now: false)
Known server brands: fabric
Level was modded: true
Level storage version: 0x04ABD - Anvil
Stacktrace:
at net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:871)
at net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:811)
at net.minecraft.class_1132.method_3748(class_1132.java:91)
at net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:670)
at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:257)
at net.minecraft.server.MinecraftServer$$Lambda$4522/1843853261.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
-- System Details --
Details:
Minecraft Version: 1.16.5
Minecraft Version ID: 1.16.5
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 642751912 bytes (612 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
CPUs: 12
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.
heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Fabric Mods:
bosses_of_mass_destruction: Bosses of Mass Destruction (Beta) 1.2.4-1.16.5
cloth-basic-math: cloth-basic-math 0.6.0
cloth-config2: Cloth Config v4 4.13.49
fabric: Fabric API 0.42.0+1.16
fabric-api-base: Fabric API Base 0.4.0+3cc0f0907d
fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.3.1+3cc0f0907d
fabric-biome-api-v1: Fabric Biome API (v1) 3.1.13+3cc0f0907d
fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.6+3cc0f0907d
fabric-command-api-v1: Fabric Command API (v1) 1.1.3+3cc0f0907d
fabric-commands-v0: Fabric Commands (v0) 0.2.3+3cc0f0907d
fabric-containers-v0: Fabric Containers (v0) 0.1.12+3cc0f0907d
fabric-content-registries-v0: Fabric Content Registries (v0) 0.2.5+3cc0f0907d
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.4+3cc0f0907d
fabric-dimensions-v1: Fabric Dimensions API (v1) 2.0.8+3cc0f0907d
fabric-entity-events-v1: Fabric Entity Events (v1) 1.2.4+3cc0f0907d
fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.4.5+3cc0f0907d
fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.2+3cc0f0907d
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.7+3cc0f0907d
fabric-item-api-v1: Fabric Item API (v1) 1.2.2+3cc0f0907d
fabric-item-groups-v0: Fabric Item Groups (v0) 0.3.1+3cc0f0907d
fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.5+3cc0f0907d
fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.2+3cc0f0907d
fabric-language-kotlin: Fabric Language Kotlin 1.8.3+kotlin.1.7.10
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 1.2.2+3cc0f0907d
fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.0.3+3cc0f0907d
fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.4+3cc0f0907d
fabric-models-v0: Fabric Models (v0) 0.3.1+3cc0f0907d
fabric-networking-api-v1: Fabric Networking API (v1) 1.0.5+3cc0f0907d
fabric-networking-blockentity-v0: Fabric Networking Block Entity (v0) 0.2.9+3cc0f0907d
fabric-networking-v0: Fabric Networking (v0) 0.3.3+3cc0f0907d
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 1.9.6+3cc0f0907d
fabric-object-builders-v0: Fabric Object Builders (v0) 0.7.3+3cc0f0907d
fabric-particles-v1: Fabric Particles (v1) 0.2.5+3cc0f0907d
fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.7.6+3cc0f0907d
fabric-renderer-api-v1: Fabric Renderer API (v1) 0.4.5+3cc0f0907d
fabric-renderer-indigo: Fabric Renderer - Indigo 0.4.5+3cc0f0907d
fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 2.3.1+3cc0f0907d
fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.1.6+3cc0f0907d
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.15+3cc0f0907d
fabric-rendering-v0: Fabric Rendering (v0) 1.1.3+3cc0f0907d
fabric-rendering-v1: Fabric Rendering (v1) 1.6.1+3cc0f0907d
fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.4.8+3cc0f0907d
fabric-screen-api-v1: Fabric Screen API (v1) 1.0.1+3cc0f0907d
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.1.6+3cc0f0907d
fabric-structure-api-v1: Fabric Structure API (v1) 1.1.12+3cc0f0907d
fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 1.1.2+3cc0f0907d
fabric-textures-v0: Fabric Textures (v0) 1.0.7+3cc0f0907d
fabric-tool-attribute-api-v1: Fabric Tool Attribute API (v1) 1.2.8+3cc0f0907d
fabric-transfer-api-v1: Fabric Transfer API (v1) 1.5.0+3cc0f0907d
fabricloader: Fabric Loader 0.14.9
geckolib3: Geckolib 3.0.67
java: Java HotSpot(TM) 64-Bit Server VM 8
maelstrom_library: Maelstrom Library 1.2-1.16.5
minecraft: Minecraft 1.16.5
multipart_entities: MultipartEntities 1.1.1-SNAPSHOT
org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 1.7.10
org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 1.7.10
org_jetbrains_kotlin_kotlin-stdlib-jdk7: kotlin-stdlib-jdk7 1.7.10
org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 1.7.10
org_jetbrains_kotlinx_atomicfu-jvm: atomicfu-jvm 0.18.3
org_jetbrains_kotlinx_kotlinx-coroutines-core-jvm: kotlinx-coroutines-core-jvm 1.6.4
org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.6.4
org_jetbrains_kotlinx_kotlinx-datetime-jvm: kotlinx-datetime-jvm 0.4.0
org_jetbrains_kotlinx_kotlinx-serialization-cbor-jvm: kotlinx-serialization-cbor-jvm 1.4.0
org_jetbrains_kotlinx_kotlinx-serialization-core-jvm: kotlinx-serialization-core-jvm 1.4.0
org_jetbrains_kotlinx_kotlinx-serialization-json-jvm: kotlinx-serialization-json-jvm 1.4.0
Player Count: 1 / 8; [class_3222['itsxyquqe'/68, l='ServerLevel[elden ring]', x=-86.50, y=76.00, z=178.50]]
Data Packs: vanilla, Fabric Mods
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fabric'