---- Minecraft Crash Report ----
// You're mean.

Time: 2024-05-30 13:32:59
Description: Saving entity NBT

java.lang.NullPointerException: Cannot invoke "com.mojang.datafixers.util.Either.map(java.util.function.Function, java.util.function.Function)" because "$$2" is null
	at net.minecraft.world.entity.Leashable.void setLeashData(net.minecraft.world.entity.Leashable$LeashData)(Leashable.java:73)
	at net.minecraft.world.entity.Leashable.void writeLeashData(net.minecraft.nbt.CompoundTag,net.minecraft.world.entity.Leashable$LeashData)(Leashable.java:73)
	at net.minecraft.world.entity.vehicle.Boat.void addAdditionalSaveData(net.minecraft.nbt.CompoundTag)(Boat.java:811)
	at net.minecraft.world.entity.vehicle.ChestBoat.void addAdditionalSaveData(net.minecraft.nbt.CompoundTag)(ChestBoat.java:60)
	at net.minecraft.world.entity.Entity.net.minecraft.nbt.CompoundTag saveWithoutId(net.minecraft.nbt.CompoundTag)(Entity.java:1919)
	at net.minecraft.world.entity.Entity.boolean saveAsPassenger(net.minecraft.nbt.CompoundTag)(Entity.java:1855)
	at net.minecraft.world.entity.Entity.boolean save(net.minecraft.nbt.CompoundTag)(Entity.java:1863)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:109)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void lambda$storeEntities$1(net.minecraft.nbt.ListTag,net.minecraft.world.entity.Entity)(EntityStorage.java:109)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:107)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean storeChunkSections(long,java.util.function.Consumer)(PersistentEntitySectionManager.java:299)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean processChunkUnload(long)(PersistentEntitySectionManager.java:316)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:343)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean lambda$processUnloads$10(long)(PersistentEntitySectionManager.java:343)
	at it.unimi.dsi.fastutil.longs.LongCollection.null removeIf(null)(LongCollection.java:274)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:338)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void tick()(PersistentEntitySectionManager.java:358)
	at net.minecraft.server.level.ServerLevel.void tick(java.util.function.BooleanSupplier)(ServerLevel.java:417)
	at net.minecraft.server.MinecraftServer.void tickChildren(java.util.function.BooleanSupplier)(MinecraftServer.java:1021)
	at net.minecraft.server.MinecraftServer.void tickServer(java.util.function.BooleanSupplier)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:912)
	at net.minecraft.client.server.IntegratedServer.void tickServer(java.util.function.BooleanSupplier)(IntegratedServer.java:114)
	at net.minecraft.server.MinecraftServer.void runServer()(MinecraftServer.java:697)
	at net.minecraft.server.MinecraftServer.net.minecraft.server.MinecraftServer spin(java.util.function.Function)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.void lambda$spin$2(java.util.concurrent.atomic.AtomicReference)(MinecraftServer.java:281)
	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 net.minecraft.world.entity.Leashable.void setLeashData(net.minecraft.world.entity.Leashable$LeashData)(Leashable.java:73)
	at net.minecraft.world.entity.Leashable.void writeLeashData(net.minecraft.nbt.CompoundTag,net.minecraft.world.entity.Leashable$LeashData)(Leashable.java:73)
	at net.minecraft.world.entity.vehicle.Boat.void addAdditionalSaveData(net.minecraft.nbt.CompoundTag)(Boat.java:811)
	at net.minecraft.world.entity.vehicle.ChestBoat.void addAdditionalSaveData(net.minecraft.nbt.CompoundTag)(ChestBoat.java:60)
	at net.minecraft.world.entity.Entity.net.minecraft.nbt.CompoundTag saveWithoutId(net.minecraft.nbt.CompoundTag)(Entity.java:1919)
	at net.minecraft.world.entity.Entity.boolean saveAsPassenger(net.minecraft.nbt.CompoundTag)(Entity.java:1855)
	at net.minecraft.world.entity.Entity.boolean save(net.minecraft.nbt.CompoundTag)(Entity.java:1863)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:109)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void lambda$storeEntities$1(net.minecraft.nbt.ListTag,net.minecraft.world.entity.Entity)(EntityStorage.java:109)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:107)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean storeChunkSections(long,java.util.function.Consumer)(PersistentEntitySectionManager.java:299)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean processChunkUnload(long)(PersistentEntitySectionManager.java:316)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:343)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean lambda$processUnloads$10(long)(PersistentEntitySectionManager.java:343)
	at it.unimi.dsi.fastutil.longs.LongCollection.null removeIf(null)(LongCollection.java:274)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:338)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void tick()(PersistentEntitySectionManager.java:358)

-- Entity being saved --
Details:
	Entity Type: minecraft:chest_boat (cow)
	Entity ID: 380
	Entity Name: Oak Boat with Chest
	Entity's Exact location: -13.51, 102.00, -0.69
	Entity's Block location: World: (-14,102,-1), Section: (at 2,6,15 in -1,6,-1; chunk contains blocks -16,0,-16 to -1,255,-1), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Entity's Momentum: -0.00, -0.00, 0.00
	Entity's Passengers: []
	Entity's Vehicle: null
Stacktrace:
	at net.minecraft.world.entity.Entity.net.minecraft.nbt.CompoundTag saveWithoutId(net.minecraft.nbt.CompoundTag)(Entity.java:1919)
	at net.minecraft.world.entity.Entity.boolean saveAsPassenger(net.minecraft.nbt.CompoundTag)(Entity.java:1855)
	at net.minecraft.world.entity.Entity.boolean save(net.minecraft.nbt.CompoundTag)(Entity.java:1863)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:109)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void lambda$storeEntities$1(net.minecraft.nbt.ListTag,net.minecraft.world.entity.Entity)(EntityStorage.java:109)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
	at net.minecraft.world.level.chunk.storage.EntityStorage.void storeEntities(net.minecraft.world.level.entity.ChunkEntities)(EntityStorage.java:107)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean storeChunkSections(long,java.util.function.Consumer)(PersistentEntitySectionManager.java:299)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean processChunkUnload(long)(PersistentEntitySectionManager.java:316)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:343)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.boolean lambda$processUnloads$10(long)(PersistentEntitySectionManager.java:343)
	at it.unimi.dsi.fastutil.longs.LongCollection.null removeIf(null)(LongCollection.java:274)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void processUnloads()(PersistentEntitySectionManager.java:338)
	at net.minecraft.world.level.entity.PersistentEntitySectionManager.void tick()(PersistentEntitySectionManager.java:358)
	at net.minecraft.server.level.ServerLevel.void tick(java.util.function.BooleanSupplier)(ServerLevel.java:417)
	at net.minecraft.server.MinecraftServer.void tickChildren(java.util.function.BooleanSupplier)(MinecraftServer.java:1021)
	at net.minecraft.server.MinecraftServer.void tickServer(java.util.function.BooleanSupplier)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:912)
	at net.minecraft.client.server.IntegratedServer.void tickServer(java.util.function.BooleanSupplier)(IntegratedServer.java:114)
	at net.minecraft.server.MinecraftServer.void runServer()(MinecraftServer.java:697)
	at net.minecraft.server.MinecraftServer.net.minecraft.server.MinecraftServer spin(java.util.function.Function)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.void lambda$spin$2(java.util.concurrent.atomic.AtomicReference)(MinecraftServer.java:281)
	at java.base/java.lang.Thread.run(Thread.java:1583)

-- Affected level --
Details:
	All players: 0 total; []
	Chunk stats: 646
	Level dimension: minecraft:the_nether
	Derived: true
	Level spawn location: World: (0,98,0), Section: (at 0,2,0 in 0,6,0; chunk contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 38008 game time, 38008 day time
	Level name: crystal?
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Commands: true
	Level weather: Rain time: 83569 (now: false), thunder time: 88911 (now: false)
	Known server brands: vanilla
	Removed feature flags: 
	Level was modded: false
	Level storage version: 0x04ABD - Anvil
	Loaded entity count: 0
Stacktrace:
	at net.minecraft.server.level.ServerLevel.net.minecraft.CrashReportCategory fillReportDetails(net.minecraft.CrashReport)(ServerLevel.java:1693)
	at net.minecraft.server.MinecraftServer.void tickChildren(java.util.function.BooleanSupplier)(MinecraftServer.java:1024)
	at net.minecraft.server.MinecraftServer.void tickServer(java.util.function.BooleanSupplier)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:912)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:912)
	at net.minecraft.client.server.IntegratedServer.void tickServer(java.util.function.BooleanSupplier)(IntegratedServer.java:114)
	at net.minecraft.server.MinecraftServer.void runServer()(MinecraftServer.java:697)
	at net.minecraft.server.MinecraftServer.net.minecraft.server.MinecraftServer spin(java.util.function.Function)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.net.minecraft.SystemReport fillServerSystemReport(net.minecraft.SystemReport)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.boolean isSingleplayerOwner(com.mojang.authlib.GameProfile)(MinecraftServer.java:281)
	at net.minecraft.server.MinecraftServer.void lambda$spin$2(java.util.concurrent.atomic.AtomicReference)(MinecraftServer.java:281)
	at java.base/java.lang.Thread.run(Thread.java:1583)

-- System Details --
Details:
	Minecraft Version: 1.21 Pre-Release 1
	Minecraft Version ID: 1.21-pre1
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 21.0.2, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
	Memory: 403639840 bytes (384 MiB) / 2153775104 bytes (2054 MiB) up to 4294967296 bytes (4096 MiB)
	CPUs: 4
	Processor Vendor: GenuineIntel
	Processor Name: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz
	Identifier: Intel64 Family 6 Model 158 Stepping 9
	Microarchitecture: Kaby Lake
	Frequency (GHz): 2.50
	Number of physical packages: 1
	Number of physical CPUs: 4
	Number of logical CPUs: 4
	Graphics card #0 name: Intel(R) HD Graphics 630
	Graphics card #0 vendor: Intel Corporation
	Graphics card #0 VRAM (MiB): 1024.00
	Graphics card #0 deviceId: VideoController1
	Graphics card #0 versionInfo: 26.20.100.7325
	Graphics card #1 name: NVIDIA GeForce GTX 1050
	Graphics card #1 vendor: NVIDIA
	Graphics card #1 VRAM (MiB): 2048.00
	Graphics card #1 deviceId: VideoController2
	Graphics card #1 versionInfo: 31.0.15.5161
	Memory slot #0 capacity (MiB): 4096.00
	Memory slot #0 clockSpeed (GHz): 2.40
	Memory slot #0 type: DDR4
	Memory slot #1 capacity (MiB): 8192.00
	Memory slot #1 clockSpeed (GHz): 2.40
	Memory slot #1 type: DDR4
	Virtual memory max (MiB): 31178.28
	Virtual memory used (MiB): 8557.28
	Swap memory total (MiB): 19005.14
	Swap memory used (MiB): 13.93
	Space in storage for jna.tmpdir (MiB): available: 16625.20, total: 307203.00
	Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 16625.20, total: 307203.00
	Space in storage for io.netty.native.workdir (MiB): available: 16625.20, total: 307203.00
	Space in storage for java.io.tmpdir (MiB): available: 24525.63, total: 121295.83
	Space in storage for workdir (MiB): available: 16625.20, total: 307203.00
	JVM Flags: 6 total; -XX:+UseG1GC -XX:-UseAdaptiveSizePolicy -XX:-OmitStackTraceInFastThrow -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmn2048m -Xmx4096m
	Server Running: true
	Player Count: 1 / 8; [aqv['CaN2crow'/44, l='ServerLevel[crystal?]', x=-51.58, y=88.00, z=47.44]]
	Active Data Packs: vanilla
	Available Data Packs: bundle, trade_rebalance, vanilla
	Enabled Feature Flags: minecraft:vanilla
	World Generation: Stable
	World Seed: 8947400178025371270
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched
	Launched Version: 1.21-pre1