[1.12] java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.Integer

Purplicious_Cow · January 24, 2018

Hey Team Forge -

I have a question, very similar to this thread at the very bottom of this post answered back in July '17. I have seen crashes like the below reported on Animania reported since its launch 9 months ago. It does appear to be "heap pollution", as you suspect, as it only occurs in multi-mod environments (where at least one of the mods adds other custom entities) and in a server environment. There is nothing in my code that would or could even change the stored value from an Integer to a Boolean (that's just weird). Based on all evidence it is externally created, and can happen to any animal and any parameter.

Example crash: https://github.com/capnkirok/animania/files/1652984/crash-2018-01-22_12.33.17-client.txt

However, I have no idea of identifying which mods are causing the problem. I saw another discussion about this elsewhere where Vazkii chimed in and said the only real way avoid the issue altogether is to move from Data Parameters to Capabilities.

Any suggestions here? I would love to be able to error trap it, but I can't even do that (unless you know a way). Or would you recommend moving to Capabilities?

Thx,

Purp

Purplicious_Cow · January 24, 2018

Thanks, diesieben07,

But I'm not going to do that for modpackers with hundreds of mods. So, to be clear...

So you don't recommend using capabilities?
Also.. based on your response... what if I am extending some vanilla entities (for instance EntityCow) ... could that be a source of conflict if other mods do the same and add their parameters to an extended class?

Draco18s · January 24, 2018

1 hour ago, Purplicious_Cow said:

But I'm not going to do that for modpackers with hundreds of mods

Do it by binary halves:

PIck half of the mods (alphabetically works). Doesn't need to be an exact half. Just make sure that Animania stays in each time.

Remove those mods.

If the problem persists, remove half of what remains.

If the problem goes away, put half of the most recently removed mods back.

Repeat until adding/removing a single mod causes the problem.

This should take no more than 7 iterations for ~100 mods.

Edited January 24, 2018 by Draco18s

Purplicious_Cow · January 26, 2018

On 1/24/2018 at 5:44 PM, diesieben07 said:

Yes, I do. But they have a completely different purpose than DataParameters. "You should not use a screwdriver to put a nail into the wall." - "So I should never use screwdrivers?".

No, no, I meant, do you think it's a bad idea to use Capabilities to do the same thing that DataParameters are doing.

On 1/24/2018 at 5:44 PM, diesieben07 said:

Yes. You must only add DataParameters for entities that you create. Otherwise you must implement the data synchronization manually.

@diesiben07, thanks for the response. Ok, so it sounds like I have to implement the data synchronization manually. For some reason, I though the entity automatically did this (writeToNBT). How would you recommend I sync manually, using network packets?

Finally, I'm going to include one of my entity base classes for the Ferret, which has crashed with this error, just in case I'm doing something really dumb with this and I don't know it (distinct possibility). This one extends EntityTameable (which has its own parameters, of course)

package com.animania.common.entities.rodents;

import java.util.Random;
import java.util.Set;

import javax.annotation.Nullable;

import com.animania.Animania;
import com.animania.common.ModSoundEvents;
import com.animania.common.capabilities.CapabilityRefs;
import com.animania.common.capabilities.ICapabilityPlayer;
import com.animania.common.entities.AnimalContainer;
import com.animania.common.entities.AnimaniaAnimal;
import com.animania.common.entities.EntityGender;
import com.animania.common.entities.ISpawnable;
import com.animania.common.entities.amphibians.EntityAmphibian;
import com.animania.common.entities.amphibians.EntityFrogs;
import com.animania.common.entities.amphibians.EntityToad;
import com.animania.common.entities.chickens.EntityChickLeghorn;
import com.animania.common.entities.chickens.EntityChickOrpington;
import com.animania.common.entities.chickens.EntityChickPlymouthRock;
import com.animania.common.entities.chickens.EntityChickRhodeIslandRed;
import com.animania.common.entities.chickens.EntityChickWyandotte;
import com.animania.common.entities.genericAi.EntityAnimaniaAvoidWater;
import com.animania.common.entities.rodents.ai.EntityAIFerretFindFood;
import com.animania.common.entities.rodents.ai.EntityAIFindWater;
import com.animania.common.entities.rodents.ai.EntityAILookIdleRodent;
import com.animania.common.entities.rodents.ai.EntityAIRodentEat;
import com.animania.common.entities.rodents.ai.EntityAISwimmingRodents;
import com.animania.common.entities.rodents.ai.EntityAITemptRodents;
import com.animania.common.entities.rodents.ai.EntityAIWatchClosestFromSide;
import com.animania.common.handler.ItemHandler;
import com.animania.common.helper.AnimaniaHelper;
import com.animania.common.items.ItemEntityEgg;
import com.animania.compat.top.providers.entity.TOPInfoProviderRodent;
import com.animania.config.AnimaniaConfig;
import com.animania.network.client.CapSyncPacket;
import com.google.common.collect.Sets;

import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityAgeable;
import net.minecraft.entity.EntityList;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIAttackMelee;
import net.minecraft.entity.ai.EntityAIFollowOwner;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILeapAtTarget;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAIPanic;
import net.minecraft.entity.ai.EntityAISit;
import net.minecraft.entity.ai.EntityAIWanderAvoidWater;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.monster.EntitySilverfish;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.init.MobEffects;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EnumHand;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.SoundEvent;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.RayTraceResult;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.NetworkRegistry;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class EntityFerretBase extends EntityTameable implements TOPInfoProviderRodent, ISpawnable, AnimaniaAnimal
{

	protected static final DataParameter<Boolean> FED = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final DataParameter<Boolean> WATERED = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final DataParameter<Boolean> TAMED = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final DataParameter<Boolean> SITTING = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final DataParameter<Boolean> RIDING = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final DataParameter<Boolean> AGE = EntityDataManager.<Boolean>createKey(EntityFerretBase.class, DataSerializers.BOOLEAN);
	protected static final Set<Item> TEMPTATION_ITEMS = Sets.newHashSet(new Item[] { Items.MUTTON, Items.EGG, ItemHandler.brownEgg, Items.CHICKEN, ItemHandler.rawWyandotteChicken, ItemHandler.rawRhodeIslandRedChicken, ItemHandler.rawRhodeIslandRedChicken, ItemHandler.rawOrpingtonChicken, ItemHandler.rawPrimeChicken });
	protected int fedTimer;
	protected int wateredTimer;
	protected int happyTimer;
	protected int tamedTimer;
	public int blinkTimer;
	public int eatTimer;
	public EntityAIRodentEat entityAIEatGrass;
	protected int damageTimer;
	protected FerretType type;
	private int delayCount;

	public EntityFerretBase(World worldIn)
	{
		super(worldIn);
		this.setSize(.75F, .40F);
		this.stepHeight = 1.1F;
		this.fedTimer = AnimaniaConfig.careAndFeeding.feedTimer + this.rand.nextInt(100);
		this.wateredTimer = AnimaniaConfig.careAndFeeding.waterTimer + this.rand.nextInt(100);
		this.happyTimer = 60;
		this.tamedTimer = 120;
		this.blinkTimer = 70 + this.rand.nextInt(70);
		this.enablePersistence();
		this.delayCount = 5;
	}

	@Override
	protected void initEntityAI()
	{
		this.aiSit = new EntityAISit(this);
		this.tasks.addTask(0, new EntityAISwimmingRodents(this));
		if (!AnimaniaConfig.gameRules.ambianceMode) {
			this.tasks.addTask(2, new EntityAIFindWater(this, 1.0D));
			this.tasks.addTask(3, new EntityAIFerretFindFood(this, 1.0D));
		}
		this.tasks.addTask(2, this.aiSit);
		this.entityAIEatGrass = new EntityAIRodentEat(this);
		this.tasks.addTask(3, new EntityAILeapAtTarget(this, 0.2F));
		this.tasks.addTask(4, new EntityAIAttackMelee(this, 1.0D, true));
		this.tasks.addTask(6, new EntityAIFollowOwner(this, 1.0D, 10.0F, 2.0F));
		this.tasks.addTask(7, new EntityAIPanic(this, 1.5D));
		this.tasks.addTask(8, new EntityAIRodentEat(this));
		this.tasks.addTask(9, new EntityAITemptRodents(this, 1.2D, false, EntityFerretBase.TEMPTATION_ITEMS));
		this.tasks.addTask(10, this.entityAIEatGrass);
		this.tasks.addTask(11, new EntityAIWanderAvoidWater(this, 1.2D));
		this.tasks.addTask(12, new EntityAIWatchClosestFromSide(this, EntityPlayer.class, 6.0F));
		this.tasks.addTask(13, new EntityAILookIdleRodent(this));
		this.tasks.addTask(14, new EntityAnimaniaAvoidWater(this));
		if (AnimaniaConfig.gameRules.animalsCanAttackOthers) {
			this.targetTasks.addTask(1, new EntityAINearestAttackableTarget(this, EntityChickLeghorn.class, false));
			this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityChickOrpington.class, false));
			this.targetTasks.addTask(3, new EntityAINearestAttackableTarget(this, EntityChickPlymouthRock.class, false));
			this.targetTasks.addTask(4, new EntityAINearestAttackableTarget(this, EntityChickRhodeIslandRed.class, false));
			this.targetTasks.addTask(5, new EntityAINearestAttackableTarget(this, EntityChickWyandotte.class, false));
			this.targetTasks.addTask(6, new EntityAINearestAttackableTarget(this, EntitySilverfish.class, false));
			this.targetTasks.addTask(7, new EntityAINearestAttackableTarget(this, EntityFrogs.class, false));
			this.targetTasks.addTask(8, new EntityAINearestAttackableTarget(this, EntityToad.class, false));
			this.targetTasks.addTask(9, new EntityAIHurtByTarget(this, true, new Class[0]));
		}
	}

	@Override
	protected void applyEntityAttributes()
	{
		super.applyEntityAttributes();
		this.getEntityAttribute(SharedMonsterAttributes.MAX_HEALTH).setBaseValue(8.0D);
		this.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue(0.35D);
		this.getAttributeMap().registerAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).setBaseValue(0.5D);
	}

	@Override
	protected boolean canDespawn()
	{
		return false;
	}

	@Override
	public int getVerticalFaceSpeed()
	{
		return this.isSitting() ? 20 : super.getVerticalFaceSpeed();
	}

	@Override
	protected void consumeItemFromStack(EntityPlayer player, ItemStack stack)
	{
		this.setFed(true);
		this.setOwnerId(player.getPersistentID());
		this.setIsTamed(true);
		this.setTamed(true);
		this.setSitting(false);
		this.setFerretSitting(false);
		this.entityAIEatGrass.startExecuting();
		if (!player.capabilities.isCreativeMode)
			if (stack != ItemStack.EMPTY)
				stack.setCount(stack.getCount() - 1);
		this.setInLove(player);
	}

	@Override
	public void setInLove(EntityPlayer player)
	{
		this.world.setEntityState(this, (byte) 18);
	}

	@Override
	protected void updateAITasks()
	{
		this.eatTimer = this.entityAIEatGrass.getEatingGrassTimer();
		super.updateAITasks();
	}

	@Override
	protected void dropFewItems(boolean hit, int lootlevel)
	{
		int happyDrops = 0;

		if (this.getWatered())
			happyDrops++;
		if (this.getFed())
			happyDrops++;

		ItemStack dropItem;
		if (AnimaniaConfig.drops.customMobDrops)
		{
			String drop = AnimaniaConfig.drops.ferretDrop;
			dropItem = AnimaniaHelper.getItem(drop);
		}
		else
			dropItem = null;

		ItemStack dropItem2;
		String drop2 = AnimaniaConfig.drops.ferretDrop2;
		dropItem2 = AnimaniaHelper.getItem(drop2);

		if (happyDrops == 2)
		{
			if (dropItem != null) {
				dropItem.setCount(1 + lootlevel);
				EntityItem entityitem = new EntityItem(this.world, this.posX + 0.5D, this.posY + 0.5D, this.posZ + 0.5D, dropItem);
				world.spawnEntity(entityitem);
			}
			if (dropItem2 != null) {
				this.dropItem(dropItem2.getItem(), AnimaniaConfig.drops.ferretDrop2Amount + lootlevel);
			}
		}
		else if (happyDrops == 1)
		{
			if (dropItem != null) {
				dropItem.setCount(1 + lootlevel);
				EntityItem entityitem = new EntityItem(this.world, this.posX + 0.5D, this.posY + 0.5D, this.posZ + 0.5D, dropItem);
				world.spawnEntity(entityitem);
			}
			if (dropItem2 != null) {
				this.dropItem(dropItem2.getItem(), AnimaniaConfig.drops.ferretDrop2Amount + lootlevel);
			}
		}

	}

	@Override
	public boolean processInteract(EntityPlayer player, EnumHand hand)
	{
		ItemStack stack = player.getHeldItem(hand);
		EntityPlayer entityplayer = player;

		if (stack != ItemStack.EMPTY && stack.getItem() == Items.WATER_BUCKET && delayCount == 0)
		{
			delayCount = 5;
			this.setWatered(true);
			this.setInLove(player);
			return true;
		}
		else if (stack == ItemStack.EMPTY && this.isTamed() && !this.isFerretSitting() && !player.isSneaking() && delayCount == 0)
		{
			delayCount = 5;
			this.setFerretSitting(true);
			this.setSitting(true);
			this.isJumping = false;
			this.navigator.clearPathEntity();
			return true;
		}
		else if (stack == ItemStack.EMPTY && this.isTamed() && this.isFerretSitting() && !player.isSneaking() && delayCount == 0)
		{

			delayCount = 5;
			this.setFerretSitting(false);
			this.setSitting(false);
			this.isJumping = false;
			this.navigator.clearPathEntity();
			return true;
		}
		else if (stack == ItemStack.EMPTY && this.isTamed() && player.isSneaking() && delayCount == 0)
		{
			delayCount = 5;
			ICapabilityPlayer props = CapabilityRefs.getPlayerCaps(player);
			if (!props.isCarrying())
			{
				props.setAnimal(this.writeToNBT(new NBTTagCompound()));
				props.setCarrying(true);
				props.setType(EntityList.getKey(this).getResourcePath());
				this.setDead();
				player.swingArm(EnumHand.MAIN_HAND);
				Animania.network.sendToAllAround(new CapSyncPacket(props, player.getEntityId()), new NetworkRegistry.TargetPoint(player.world.provider.getDimension(), player.getPosition().getX(), player.getPosition().getY(), player.getPosition().getZ(), 64));
				return true;
			}
		}

		return super.processInteract(player, hand);
	}

	@Override
	public boolean attackEntityAsMob(Entity entityIn)
	{
		boolean flag = entityIn.attackEntityFrom(DamageSource.causeMobDamage(this), 1.0F);

		if (flag)
			this.applyEnchantments(this, entityIn);

		if (entityIn instanceof EntityAmphibian)
		{
			this.setFed(true);
		}

		// Custom Knockback
		if (entityIn instanceof EntityPlayer)
			((EntityLivingBase) entityIn).knockBack(this, 1, this.posX - entityIn.posX, this.posZ - entityIn.posZ);

		return flag;
	}

	@Override
	protected void entityInit()
	{
		super.entityInit();
		this.dataManager.register(EntityFerretBase.FED, Boolean.valueOf(true));
		this.dataManager.register(EntityFerretBase.WATERED, Boolean.valueOf(true));
		this.dataManager.register(EntityFerretBase.TAMED, Boolean.valueOf(false));
		this.dataManager.register(EntityFerretBase.SITTING, Boolean.valueOf(false));
		this.dataManager.register(EntityFerretBase.RIDING, Boolean.valueOf(false));
		this.dataManager.register(EntityFerretBase.AGE, Boolean.valueOf(false));

	}

	@Override
	public void writeEntityToNBT(NBTTagCompound compound)
	{
		super.writeEntityToNBT(compound);
		compound.setBoolean("Fed", this.getFed());
		compound.setBoolean("Watered", this.getWatered());
		compound.setBoolean("IsTamed", this.getIsTamed());
		compound.setBoolean("IsSitting", this.isFerretSitting());
		compound.setBoolean("Riding", this.isFerretRiding());
		compound.setBoolean("Age", this.getAge());

	}

	/**
	 * (abstract) Protected helper method to read subclass entity data from NBT.
	 */
	@Override
	public void readEntityFromNBT(NBTTagCompound compound)
	{
		super.readEntityFromNBT(compound);
		this.setFed(compound.getBoolean("Fed"));
		this.setWatered(compound.getBoolean("Watered"));
		this.setIsTamed(compound.getBoolean("IsTamed"));
		this.setFerretSitting(compound.getBoolean("IsSitting"));
		this.setFerretRiding(compound.getBoolean("Riding"));
		this.setAge(compound.getBoolean("Age"));

	}

	public boolean getAge()
	{
		return this.dataManager.get(EntityFerretBase.AGE).booleanValue();
	}

	public void setAge(boolean age)
	{
		this.dataManager.set(EntityFerretBase.AGE, Boolean.valueOf(age));
	}

	@Override
	public boolean canBeLeashedTo(EntityPlayer player)
	{
		return true;
	}

	@Override
	protected SoundEvent getAmbientSound()
	{
		int happy = 0;
		int num = 1;

		if (this.getWatered())
			happy++;
		if (this.getFed())
			happy++;

		if (happy == 2)
			num = 10;
		else if (happy == 1)
			num = 20;
		else
			num = 40;

		Random rand = new Random();
		int chooser = rand.nextInt(num);

		if (chooser == 0)
			return ModSoundEvents.ferretLiving1;
		else if (chooser == 1)
			return ModSoundEvents.ferretLiving2;
		else if (chooser == 2)
			return ModSoundEvents.ferretLiving3;
		else if (chooser == 3)
			return ModSoundEvents.ferretLiving4;
		else if (chooser == 4)
			return ModSoundEvents.ferretLiving5;
		else if (chooser == 5)
			return ModSoundEvents.ferretLiving6;
		else
			return null;

	}

	@Override
	protected SoundEvent getHurtSound(DamageSource source)
	{
		Random rand = new Random();
		int chooser = rand.nextInt(3);

		if (chooser == 0)
			return ModSoundEvents.ferretHurt1;
		else if (chooser == 1)
			return ModSoundEvents.ferretHurt1;
		else
			return null;
	}

	@Override
	protected SoundEvent getDeathSound()
	{
		return ModSoundEvents.ferretHurt1;
	}

	@Override
	public void playLivingSound()
	{
		SoundEvent soundevent = this.getAmbientSound();

		if (soundevent != null)
			this.playSound(soundevent, this.getSoundVolume() - .3F, this.getSoundPitch());
	}

	@Override
	protected void playStepSound(BlockPos pos, Block blockIn)
	{
		this.playSound(SoundEvents.ENTITY_WOLF_STEP, 0.02F, 1.5F);
	}

	private boolean interactRide(EntityPlayer entityplayer)
	{
		this.isRemoteMountEntity(entityplayer);
		return true;
	}

	private void isRemoteMountEntity(Entity par1Entity)
	{

		if (this.isFerretRiding())
		{
			this.setFerretRiding(true);
			this.startRiding(par1Entity);
		}
		else if (!this.isFerretRiding())
			this.dismountRidingEntity();

	}

	@Override
	public void onLivingUpdate()
	{
		if (!this.getAge()) {
			this.setAge(true);
		}

		delayCount--;
		if (delayCount <= 0) {
			delayCount = 0;
		}

		if (this.isFerretSitting() || this.isRiding())
		{
			if (this.getRidingEntity() != null)
				this.rotationYaw = this.getRidingEntity().rotationYaw;
			this.navigator.clearPathEntity();
			this.navigator.setSpeed(0);
		}

		if (this.world.isRemote)
			this.eatTimer = Math.max(0, this.eatTimer - 1);

		if (this.blinkTimer > -1)
		{
			this.blinkTimer--;
			if (this.blinkTimer == 0)
				this.blinkTimer = 100 + this.rand.nextInt(100);
		}

		if (this.fedTimer > -1 && !AnimaniaConfig.gameRules.ambianceMode)
		{
			this.fedTimer--;

			if (this.fedTimer == 0)
				this.setFed(false);
		}

		if (this.wateredTimer > -1)
		{
			this.wateredTimer--;

			if (this.wateredTimer == 0 && !AnimaniaConfig.gameRules.ambianceMode)
				this.setWatered(false);
		}

		boolean fed = this.getFed();
		boolean watered = this.getWatered();

		if (!fed && !watered)
		{
			this.addPotionEffect(new PotionEffect(MobEffects.WEAKNESS, 2, 1, false, false));
			if (AnimaniaConfig.gameRules.animalsStarve)
			{
				if (this.damageTimer >= AnimaniaConfig.careAndFeeding.starvationTimer)
				{
					this.attackEntityFrom(DamageSource.STARVE, 4f);
					this.damageTimer = 0;
				}
				this.damageTimer++;
			}

		}
		else if (!fed || !watered)
			this.addPotionEffect(new PotionEffect(MobEffects.WEAKNESS, 2, 0, false, false));

		if (this.happyTimer > -1)
		{
			this.happyTimer--;
			if (this.happyTimer == 0)
			{
				this.happyTimer = 60;

				if (!this.getFed() && !this.getWatered() && AnimaniaConfig.gameRules.showUnhappyParticles)
				{
					double d = this.rand.nextGaussian() * 0.001D;
					double d1 = this.rand.nextGaussian() * 0.001D;
					double d2 = this.rand.nextGaussian() * 0.001D;
					this.world.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, this.posX + this.rand.nextFloat() * this.width - this.width, this.posY + 1.5D + this.rand.nextFloat() * this.height, this.posZ + this.rand.nextFloat() * this.width - this.width, d, d1, d2);
				}
			}
		}

		if (this.tamedTimer > -1)
		{
			this.tamedTimer--;
			if (this.tamedTimer == 0)
			{
				this.tamedTimer = 120;

				if (this.getIsTamed() && AnimaniaConfig.gameRules.showUnhappyParticles)
				{
					double d = this.rand.nextGaussian() * 0.02D;
					double d1 = this.rand.nextGaussian() * 0.02D;
					double d2 = this.rand.nextGaussian() * 0.02D;
					this.world.spawnParticle(EnumParticleTypes.HEART, this.posX + this.rand.nextFloat() * this.width - this.width, this.posY + 1D + this.rand.nextFloat() * this.height, this.posZ + this.rand.nextFloat() * this.width - this.width, d, d1, d2);
				}
			}
		}

		super.onLivingUpdate();
	}

	@Override
	@SideOnly(Side.CLIENT)
	public void handleStatusUpdate(byte id)
	{
		if (id == 10)
			this.eatTimer = 80;
		else
			super.handleStatusUpdate(id);
	}

	public boolean isFerretSitting()
	{
		return this.dataManager.get(EntityFerretBase.SITTING).booleanValue();
	}

	public void setFerretSitting(boolean flag)
	{
		if (flag)
			this.dataManager.set(EntityFerretBase.SITTING, Boolean.valueOf(true));
		else
			this.dataManager.set(EntityFerretBase.SITTING, Boolean.valueOf(false));
	}

	public boolean isFerretRiding()
	{
		return this.dataManager.get(EntityFerretBase.RIDING).booleanValue();
	}

	public void setFerretRiding(boolean flag)
	{
		if (flag)
			this.dataManager.set(EntityFerretBase.RIDING, Boolean.valueOf(true));
		else
			this.dataManager.set(EntityFerretBase.RIDING, Boolean.valueOf(false));
	}

	public boolean getFed()
	{
		return this.dataManager.get(EntityFerretBase.FED).booleanValue();
	}

	public void setFed(boolean fed)
	{
		if (fed)
		{
			this.dataManager.set(EntityFerretBase.FED, Boolean.valueOf(true));
			this.fedTimer = AnimaniaConfig.careAndFeeding.feedTimer + this.rand.nextInt(100);
			this.setHealth(this.getHealth() + 1.0F);
		}
		else
			this.dataManager.set(EntityFerretBase.FED, Boolean.valueOf(false));
	}

	public boolean getWatered()
	{
		return this.dataManager.get(EntityFerretBase.WATERED).booleanValue();
	}

	public void setWatered(boolean watered)
	{
		if (watered)
		{
			this.dataManager.set(EntityFerretBase.WATERED, Boolean.valueOf(true));
			this.wateredTimer = AnimaniaConfig.careAndFeeding.waterTimer + this.rand.nextInt(100);
		}
		else
			this.dataManager.set(EntityFerretBase.WATERED, Boolean.valueOf(false));
	}

	public boolean getIsTamed()
	{
		return this.dataManager.get(EntityFerretBase.TAMED).booleanValue();
	}

	public void setIsTamed(boolean fed)
	{
		if (fed)
			this.dataManager.set(EntityFerretBase.TAMED, Boolean.valueOf(true));
		else
			this.dataManager.set(EntityFerretBase.TAMED, Boolean.valueOf(false));
	}

	@SideOnly(Side.CLIENT)
	public float getHeadRotationPointY(float p_70894_1_)
	{
		return this.eatTimer <= 0 ? 0.0F : this.eatTimer >= 4 && this.eatTimer <= 176 ? 1.0F : this.eatTimer < 4 ? (this.eatTimer - p_70894_1_) / 4.0F : -(this.eatTimer - 80 - p_70894_1_) / 4.0F;
	}

	@SideOnly(Side.CLIENT)
	public float getHeadRotationAngleX(float p_70890_1_)
	{
		if (this.eatTimer > 4 && this.eatTimer <= 176)
		{
			float f = (this.eatTimer - 4 - p_70890_1_) / 24.0F;
			return (float) Math.PI / 5F + (float) Math.PI * 7F / 150F * MathHelper.sin(f * 28.7F);
		}
		else
			return this.eatTimer > 0 ? (float) Math.PI / 5F : this.rotationPitch * 0.017453292F;
	}

	@Override
	public EntityFerretBase createChild(EntityAgeable ageable)
	{
		return null;
	}

	@Override
	public boolean isBreedingItem(@Nullable ItemStack stack)
	{
		return stack != ItemStack.EMPTY && EntityFerretBase.TEMPTATION_ITEMS.contains(stack.getItem());
	}

	@Override
	public Item getSpawnEgg()
	{
		return ItemEntityEgg.ANIMAL_EGGS.get(new AnimalContainer(this.type, EntityGender.NONE));
	}

	@Override
	public ItemStack getPickedResult(RayTraceResult target)
	{
		return new ItemStack(getSpawnEgg());
	}

	@Override
	public int getPrimaryEggColor()
	{
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public int getSecondaryEggColor()
	{
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public EntityGender getEntityGender()
	{
		return EntityGender.NONE;
	}

}

Draco18s · January 26, 2018

Capabilities are not automatically synced, as there may be capabilities that the client does not need to know about.

Purplicious_Cow · March 17, 2018

FYI, I went with Lycanite's solution, which is to use try/catch on all attempts to access the data. On failure, it reverts to a default state. It's not ideal, but it prevents crashing in the case there is a conflict. Example:

public float getFloatFromDataManager(DataParameter<Float> key) {
		try {
			return this.getDataManager().get(key);
		}
		catch (Exception e) {
			return 0;
		}
	}

Pieonix · April 28, 2019

this happen to me after a fresh re-install

VoiceActorPlays · May 12, 2019

‍

Edited May 12, 2019 by VoiceActorPlays

Draco18s · May 12, 2019

You're in the wrong place. We don't fix problems with using mods, we fix problems with making mods.

also:

3 hours ago, VoiceActorPlays said:

WARNING: coremods are present:
MalisisCorePlugin (malisiscore-1.12.2-6.4.0.jar)
LoadingPlugin (Quark-r1.4-120.jar)
ObfuscatePlugin (obfuscate-0.2.6-1.12.2.jar)
DynamicSurroundingsCore (DynamicSurroundings-core-1.12.2-3.5.4.3.jar)
ColorUtilityCorePlugin (ColorUtility-universal-1.0.4.jar)
Contact their authors BEFORE contacting forge

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[1.12] java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.Integer

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