[1.15] Checking the biome at a position crashes the game with NullPointerException: Unexpected Error.

[Awsome]

I have a tile entity that has a capability that checks what biome the tile entity is in, but the game crashes when I place the tile entity.

Here is the crash report:

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 8/2/20 12:18 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at awsome.techmod.api.capability.impl.HeatHandler.getBaseTempBasedOnBiome(HeatHandler.java:125) ~[main/:?] {re:classloading}
	at awsome.techmod.api.capability.impl.HeatHandler.<init>(HeatHandler.java:28) ~[main/:?] {re:classloading}
	at awsome.techmod.tileentity.TEFirebox.<init>(TEFirebox.java:30) ~[main/:?] {re:classloading}
	at awsome.techmod.blocks.BlockFirebox.createTileEntity(BlockFirebox.java:44) ~[main/:?] {re:classloading}
	at net.minecraftforge.common.extensions.IForgeBlockState.createTileEntity(IForgeBlockState.java:130) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:293) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.world.World.setBlockState(World.java:209) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.item.BlockItem.placeBlock(BlockItem.java:149) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.BlockItem.tryPlace(BlockItem.java:57) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.BlockItem.onItemUse(BlockItem.java:42) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.lambda$onItemUse$0(ItemStack.java:174) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:189) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:174) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.client.multiplayer.PlayerController.func_217292_a(PlayerController.java:318) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1333) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.processKeyBinds(Minecraft.java:1600) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1433) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:941) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.2.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at awsome.techmod.api.capability.impl.HeatHandler.getBaseTempBasedOnBiome(HeatHandler.java:125)
	at awsome.techmod.api.capability.impl.HeatHandler.<init>(HeatHandler.java:28)
	at awsome.techmod.tileentity.TEFirebox.<init>(TEFirebox.java:30)
	at awsome.techmod.blocks.BlockFirebox.createTileEntity(BlockFirebox.java:44)
	at net.minecraftforge.common.extensions.IForgeBlockState.createTileEntity(IForgeBlockState.java:130)
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:293)
	at net.minecraft.world.World.setBlockState(World.java:209)
	at net.minecraft.item.BlockItem.placeBlock(BlockItem.java:149)
	at net.minecraft.item.BlockItem.tryPlace(BlockItem.java:57)
	at net.minecraft.item.BlockItem.onItemUse(BlockItem.java:42)
	at net.minecraft.item.ItemStack.lambda$onItemUse$0(ItemStack.java:174)
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:189)
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:174)
	at net.minecraft.client.multiplayer.PlayerController.func_217292_a(PlayerController.java:318)
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1333)
	at net.minecraft.client.Minecraft.processKeyBinds(Minecraft.java:1600)

-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Awsomekeldeo'/25, l='MpServer', x=8.50, y=54.00, z=8.50]]
	Chunk stats: Client Chunk Cache: 841, 529
	Level dimension: DimensionType{minecraft:overworld}
	Level name: MpServer
	Level seed: 2721498909152078286
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (8,53,8), Chunk: (at 8,3,8 in 0,0; 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: 69701 game time, 69701 day time
	Known server brands: 
	Level was modded: false
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Server brand: forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:457)
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:1839)
	at net.minecraft.client.Minecraft.run(Minecraft.java:577)
	at net.minecraft.client.main.Main.main(Main.java:177)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_162, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 551957936 bytes (526 MB) / 1136656384 bytes (1084 MB) up to 1908932608 bytes (1820 MB)
	CPUs: 2
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.2+70+master.2845bb9
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-2.1.3-shadowed.jar accesstransformer PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 31.2
	Forge: net.minecraftforge:31.2.31
	FML Language Providers: 
		javafml@31.2
		minecraft@1
	Mod List: 
		client-extra.jar Minecraft {minecraft@1.15.2 DONE}
		forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {forge@31.2.31 DONE}
		main Untitled Tech Mod {techmod@0.0.1 DONE}
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: GeForce GTX 1050/PCIe/SSE2 GL version 4.6.0 NVIDIA 451.67, NVIDIA Corporation
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	Resource Packs: vanilla, mod_resources, file/§9[§5§lTMoTF§9] §f- §eResource Pack§2 v1.03 (incompatible)
	Current Language: English (US)
	CPU: 2x Pentium(R) Dual-Core CPU E5700 @ 3.00GHz

 

Links to my source:

Capability:

     Interface:

     https://github.com/Awsomekeldeo/TechMod/blob/master/src/main/java/awsome/techmod/api/capability/energy/IHeat.java

     Registration:

     https://github.com/Awsomekeldeo/TechMod/blob/master/src/main/java/awsome/techmod/api/capability/energy/CapabilityHeat.java

     Default Implementation (where the call to world.getBiome is):

     https://github.com/Awsomekeldeo/TechMod/blob/master/src/main/java/awsome/techmod/api/capability/impl/HeatHandler.java

TileEntity:

https://github.com/Awsomekeldeo/TechMod/blob/master/src/main/java/awsome/techmod/tileentity/TEFirebox.java

[poopoodice]

world.getBiome()

can be null

[Awsome]

thanks, that's probably it

[Awsome]

nope, i added a check for if world.getBiome() is null and it still crashes

 

Updated Default Implementation:

package awsome.techmod.api.capability.impl;

import awsome.techmod.api.capability.energy.CapabilityHeat;
import awsome.techmod.api.capability.energy.IHeat;
import awsome.techmod.util.MathUtil;
import net.minecraft.nbt.CompoundNBT;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.Direction;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.BlockPos.PooledMutable;
import net.minecraft.world.World;
import net.minecraft.world.biome.Biome;
import net.minecraftforge.common.util.INBTSerializable;
import net.minecraftforge.common.util.LazyOptional;

public class HeatHandler implements IHeat, INBTSerializable<CompoundNBT> {
	public TileEntity te;
	public float temperature = 0;
	public float maxTemperature;
	
	public boolean canCool;
	public boolean transmitsHeat;
	
	public HeatHandler(TileEntity te, float maxTemp, boolean canTransmitHeat) {
		this.te = te;
		this.maxTemperature = maxTemp;
		this.transmitsHeat = canTransmitHeat;
		this.temperature = getBaseTempBasedOnBiome(this.te.getPos());
	}
	
	public HeatHandler heatProducer(TileEntity te, float maxTemp) {
		return new HeatHandler(te, maxTemp, true);
	}
	
	public HeatHandler heatConsumer(TileEntity te, float maxTemp) {
		return new HeatHandler(te, maxTemp, false);
	}
	
	public void setTemp(float temp) {
		if (temp < getBaseTempBasedOnBiome(this.te.getPos()) && !canCool ) {
			this.temperature = getBaseTempBasedOnBiome(te.getPos());
		}else{
			this.temperature = MathUtil.roundFloat(temp, 2);
		}
	}
	
	@Override
	public float getTemperature() {
		if (this.temperature < getBaseTempBasedOnBiome(this.te.getPos()) && !canCool) {
			return getBaseTempBasedOnBiome(te.getPos());
		}else{
			return MathUtil.roundFloat(this.temperature, 2);	
		}
	}

	@Override
	public float getMaxTemperature() {
		return this.maxTemperature;
	}

	@Override
	public float changeTemp(float amount) {
		float oldTemp = this.getTemperature();
		float newTemp = (maxTemperature - oldTemp < amount) ? maxTemperature : (oldTemp + amount);
		setTemp(newTemp);
		return newTemp - oldTemp;
	}

	@Override
	public boolean getInCoolingMode() {
		return false;
	}

	@Override
	public float drawHeatFromSide(BlockPos pos, Direction side) {
		if (!pos.equals(BlockPos.ZERO)) {
			PooledMutable blockPos = PooledMutable.retain();
			blockPos.setPos(pos).move(side);
			World world = this.te.getWorld();
			TileEntity tile = world.getTileEntity(blockPos);
			if (tile != null) {
				LazyOptional<IHeat> heatCap = tile.getCapability(CapabilityHeat.HEAT_CAPABILITY, null);
				IHeat heatHandler = heatCap.orElseThrow(() -> new IllegalArgumentException("Heat capability cannot be null"));
				if (heatHandler != null) {
					if (heatHandler.canTransmitHeat() == true) {
						float lossyTemp = (float) (heatHandler.getTemperature() * (7/8f));
						lossyTemp = MathUtil.roundFloat(lossyTemp, 2);
						return lossyTemp;
					}else{
						return this.getTemperature();
					}
				}else{
					return this.getTemperature();
				}
			}
		}
		return 0;
	}

	@Override
	public CompoundNBT serializeNBT() {
		CompoundNBT tag = new CompoundNBT();
		tag.putFloat("temperature", temperature);
		tag.putFloat("max_temperature", maxTemperature);
		return tag;
	}

	@Override
	public void deserializeNBT(CompoundNBT tag) {
		temperature = tag.getLong("temperature");
		maxTemperature = tag.getLong("max_temperature");
	}

	@Override
	public boolean canTransmitHeat() {
		return this.transmitsHeat;
	}

	@Override
	public float getBaseTempBasedOnBiome(BlockPos pos) {
		World world = this.te.getWorld();
		PooledMutable blockPos = PooledMutable.retain();
		blockPos.setPos(pos);
		if (world.getBiome(blockPos) != null) {
			Biome biome = world.getBiome(blockPos);
			float biomeTemp = biome.getTemperature(blockPos);
			float tempF = (float) (95.9451242/(1+(3.012462778*(Math.pow(Math.E, (-3.330913488*biomeTemp))))));
			float temp = (tempF - 32.0f) * (5.0f/9.0f);
			blockPos.close();
			return temp;
		}
		return 0;
	}

	@Override
	public void setThermalMode(boolean mode) {
		this.canCool = mode;
	}
}

 

Crash Report:

---- Minecraft Crash Report ----
// There are four lights!

Time: 8/2/20 1:31 PM
Description: Unexpected error

java.lang.NullPointerException: Unexpected error
	at awsome.techmod.api.capability.impl.HeatHandler.getBaseTempBasedOnBiome(HeatHandler.java:124) ~[main/:?] {re:classloading}
	at awsome.techmod.api.capability.impl.HeatHandler.<init>(HeatHandler.java:28) ~[main/:?] {re:classloading}
	at awsome.techmod.tileentity.TEFirebox.<init>(TEFirebox.java:30) ~[main/:?] {re:classloading}
	at awsome.techmod.blocks.BlockFirebox.createTileEntity(BlockFirebox.java:44) ~[main/:?] {re:classloading}
	at net.minecraftforge.common.extensions.IForgeBlockState.createTileEntity(IForgeBlockState.java:130) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:293) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.world.World.setBlockState(World.java:209) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.item.BlockItem.placeBlock(BlockItem.java:149) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.BlockItem.tryPlace(BlockItem.java:57) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.BlockItem.onItemUse(BlockItem.java:42) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.lambda$onItemUse$0(ItemStack.java:174) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:189) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:174) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.client.multiplayer.PlayerController.func_217292_a(PlayerController.java:318) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1333) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.processKeyBinds(Minecraft.java:1600) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1433) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:941) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_162] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.2.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.2.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at awsome.techmod.api.capability.impl.HeatHandler.getBaseTempBasedOnBiome(HeatHandler.java:124)
	at awsome.techmod.api.capability.impl.HeatHandler.<init>(HeatHandler.java:28)
	at awsome.techmod.tileentity.TEFirebox.<init>(TEFirebox.java:30)
	at awsome.techmod.blocks.BlockFirebox.createTileEntity(BlockFirebox.java:44)
	at net.minecraftforge.common.extensions.IForgeBlockState.createTileEntity(IForgeBlockState.java:130)
	at net.minecraft.world.chunk.Chunk.setBlockState(Chunk.java:293)
	at net.minecraft.world.World.setBlockState(World.java:209)
	at net.minecraft.item.BlockItem.placeBlock(BlockItem.java:149)
	at net.minecraft.item.BlockItem.tryPlace(BlockItem.java:57)
	at net.minecraft.item.BlockItem.onItemUse(BlockItem.java:42)
	at net.minecraft.item.ItemStack.lambda$onItemUse$0(ItemStack.java:174)
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:189)
	at net.minecraft.item.ItemStack.onItemUse(ItemStack.java:174)
	at net.minecraft.client.multiplayer.PlayerController.func_217292_a(PlayerController.java:318)
	at net.minecraft.client.Minecraft.rightClickMouse(Minecraft.java:1333)
	at net.minecraft.client.Minecraft.processKeyBinds(Minecraft.java:1600)

-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Awsomekeldeo'/25, l='MpServer', x=8.50, y=54.00, z=8.50]]
	Chunk stats: Client Chunk Cache: 841, 529
	Level dimension: DimensionType{minecraft:overworld}
	Level name: MpServer
	Level seed: 2721498909152078286
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (8,53,8), Chunk: (at 8,3,8 in 0,0; 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: 70542 game time, 70542 day time
	Known server brands: 
	Level was modded: false
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Server brand: forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:457)
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:1839)
	at net.minecraft.client.Minecraft.run(Minecraft.java:577)
	at net.minecraft.client.main.Main.main(Main.java:177)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_162, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 476434568 bytes (454 MB) / 1220018176 bytes (1163 MB) up to 1908932608 bytes (1820 MB)
	CPUs: 2
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.2+70+master.2845bb9
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/accesstransformers-2.1.3-shadowed.jar accesstransformer PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 31.2
	Forge: net.minecraftforge:31.2.31
	FML Language Providers: 
		javafml@31.2
		minecraft@1
	Mod List: 
		client-extra.jar Minecraft {minecraft@1.15.2 DONE}
		forge-1.15.2-31.2.31_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {forge@31.2.31 DONE}
		main Untitled Tech Mod {techmod@0.0.1 DONE}
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: GeForce GTX 1050/PCIe/SSE2 GL version 4.6.0 NVIDIA 451.67, NVIDIA Corporation
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	Resource Packs: vanilla, mod_resources, file/§9[§5§lTMoTF§9] §f- §eResource Pack§2 v1.03 (incompatible)
	Current Language: English (US)
	CPU: 2x Pentium(R) Dual-Core CPU E5700 @ 3.00GHz

 

EDIT:

The wierd thing is, if I add a check to see if blockPos is not equal to 0, 0, 0 then it works but has the unintended side effect of causing the temperature reading at 0, 0, 0 to always be 0.

Edited August 2, 2020 by Awsome

[Awsome]

line 124 is

if (world.getBiome(blockPos) != null) {

 

[Awsome]

thank you, that fixed it!