chunk.log

This loads the chunk:

java.lang.RuntimeException 
	at net.minecraft.world.server.ChunkHolder.handler$zpd000$test$onChunkLoad(ChunkHolderMixin.java:575) 
	at net.minecraft.world.server.ChunkHolder.func_219291_a(ChunkHolderMixin.java:359) 
	at net.minecraft.world.server.TicketManager.func_219343_a(TicketManager.java:117) 
	at java.lang.Iterable.forEach(Iterable.java:75) 
	at net.minecraft.world.server.TicketManager.func_219353_a(TicketManager.java:117) 
	at net.minecraft.world.server.ServerChunkProvider.func_217235_l(ServerChunkProvider.java:277) 
	at net.minecraft.world.server.ServerChunkProvider.func_217233_c(ServerChunkProvider.java:634) 
	at net.minecraft.world.server.ServerChunkProvider.func_212849_a_(ServerChunkProvider.java:134) 
	at net.minecraft.world.World.func_217353_a(World.java:164) 
	at net.minecraft.world.IWorldReader.func_217348_a(IWorldReader.java:94) 
	at net.minecraft.world.World.func_212866_a_(World.java:160) 
	at net.minecraft.world.World.func_180495_p(World.java:392) 
	at net.minecraftforge.common.ForgeHooks.canEntityDestroy(ForgeHooks.java:1182) 
	at net.minecraft.entity.ai.goal.BreakBlockGoal.func_75250_a(BreakBlockGoal.java:35) 
	at net.minecraft.entity.ai.goal.PrioritizedGoal.func_75250_a(SourceFile:22) 
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) 
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) 
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) 
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) 
	at java.util.Iterator.forEachRemaining(Iterator.java:116) 
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) 
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) 
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) 
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) 
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) 
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) 
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) 
	at net.minecraft.entity.ai.goal.GoalSelector.func_75774_a(SourceFile:69) 
	at net.minecraft.entity.MobEntity.func_70626_be(MobEntity.java:590) 
	at net.minecraft.entity.LivingEntity.func_70636_d(LivingEntity.java:2186) 
	at net.minecraft.entity.MobEntity.func_70636_d(MobEntity.java:460) 
	at net.minecraft.entity.monster.MonsterEntity.func_70636_d(SourceFile:39) 
	at net.minecraft.entity.monster.ZombieEntity.func_70636_d(ZombieEntity.java:231) 
	at net.minecraft.entity.LivingEntity.func_70071_h_(LivingEntity.java:2032) 
	at net.minecraft.entity.MobEntity.func_70071_h_(MobEntity.java:274) 
	at net.minecraft.entity.monster.MonsterEntity.func_70071_h_(SourceFile:51) 
	at net.minecraft.entity.monster.ZombieEntity.func_70071_h_(ZombieEntity.java:205) 
	at net.minecraft.world.server.ServerWorld.func_217479_a(ServerWorld.java:587) 
	at net.minecraft.world.World.func_217390_a(World.java:684) 
	at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:394) 
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:829) 
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:324) 
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:764) 
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:622) 
	at java.lang.Thread.run(Thread.java:748) 
  
  And this unloads the chunk:
  
  java.lang.Exception 
	at net.minecraft.world.server.ChunkHolder.handler$zpd000$test$onChunkUnload(ChunkHolderMixin.java:553) 
	at net.minecraft.world.server.ChunkHolder.func_219291_a(ChunkHolderMixin.java:296) 
	at net.minecraft.world.server.TicketManager.func_219343_a(TicketManager.java:117) 
	at java.lang.Iterable.forEach(Iterable.java:75) 
	at net.minecraft.world.server.TicketManager.func_219353_a(TicketManager.java:117) 
	at net.minecraft.world.server.ServerChunkProvider.func_217235_l(ServerChunkProvider.java:277) 
	at net.minecraft.world.server.ServerChunkProvider.func_217207_a(ServerChunkProvider.java:333) 
	at net.minecraft.world.server.ServerWorld.func_72835_b(ServerWorld.java:309) 
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:829) 
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:324) 
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:764) 
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:622) 
	at java.lang.Thread.run(Thread.java:748)