I'm getting this error whenever I open up my custom Furnace

 

java.lang.ClassCastException: com.puplet.tile_entity.TileEntityPupletFurnace cannot be cast to net.minecraft.tileentity.TileEntityFurnace

The error should be self explanatory.

 

 

But if you can't comprehend it, it means that you did a bad job of copying and pasting, and didn't replace some parts of the code.

Here is my code, I can't find the error.

package com.puplet.tile_entity;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.item.Item;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemTool;
import net.minecraft.item.crafting.FurnaceRecipes;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;

import com.puplet.blocks.PupletBlocks;
import com.puplet.blocks.PupletFurnace;
import com.puplet.items.PupletItems;

import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class TileEntityPupletFurnace extends TileEntity implements ISidedInventory {

private static final int[] slotsTop = new int[] { 0 };
private static final int[] slotsBottom = new int[] { 2, 1 };
private static final int[] slotsSides = new int[] { 1 };

private ItemStack[] furnaceItemStacks = new ItemStack[3];

public int furnaceBurnTime;
public int currentBurnTime;
public int furnaceCookTime;

private String furnaceName;

public void furnaceName(String string){
	this.furnaceName = string;
}

@Override
public int getSizeInventory() {
	return this.furnaceItemStacks.length;
}

@Override
public ItemStack getStackInSlot(int slot) {
	return this.furnaceItemStacks[slot];
}

@Override
public ItemStack decrStackSize(int par1, int par2) {
	if (this.furnaceItemStacks[par1] != null) {
		ItemStack itemstack;
		if (this.furnaceItemStacks[par1].stackSize <= par2) {
			itemstack = this.furnaceItemStacks[par1];
			this.furnaceItemStacks[par1] = null;
			return itemstack;
		} else {
			itemstack = this.furnaceItemStacks[par1].splitStack(par2);

			if (this.furnaceItemStacks[par1].stackSize == 0) {
				this.furnaceItemStacks[par1] = null;
			}
			return itemstack;
		}
	} else {
		return null;
	}
}

@Override
public ItemStack getStackInSlotOnClosing(int slot) {
	if (this.furnaceItemStacks[slot] != null) {
		ItemStack itemstack = this.furnaceItemStacks[slot];
		this.furnaceItemStacks[slot] = null;
		return itemstack;
	} else {
		return null;
	}
}

@Override
public void setInventorySlotContents(int slot, ItemStack itemstack) {
	this.furnaceItemStacks[slot] = itemstack;

	if (itemstack != null && itemstack.stackSize > this.getInventoryStackLimit()) {
		itemstack.stackSize = this.getInventoryStackLimit();
	}

}

@Override
public String getInventoryName() {
	return this.hasCustomInventoryName() ? this.furnaceName : "Tut Furnace";
}

@Override
public boolean hasCustomInventoryName() {
	return this.furnaceName != null && this.furnaceName.length() > 0;
}

@Override
public int getInventoryStackLimit() {
	return 64;
}

public void readFromNBT(NBTTagCompound tagCompound) {
	super.readFromNBT(tagCompound);
	NBTTagList tagList = tagCompound.getTagList("Items", 10);
	this.furnaceItemStacks = new ItemStack[this.getSizeInventory()];

	for (int i = 0; i < tagList.tagCount(); ++i) {
		NBTTagCompound tabCompound1 = tagList.getCompoundTagAt(i);
		byte byte0 = tabCompound1.getByte("Slot");

		if (byte0 >= 0 && byte0 < this.furnaceItemStacks.length) {
			this.furnaceItemStacks[byte0] = ItemStack.loadItemStackFromNBT(tabCompound1);
		}
	}

	this.furnaceBurnTime = tagCompound.getShort("BurnTime");
	this.furnaceCookTime = tagCompound.getShort("CookTime");
	this.currentBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

	if (tagCompound.hasKey("CustomName", ) {
		this.furnaceName = tagCompound.getString("CustomName");
	}
}

public void writeToNBT(NBTTagCompound tagCompound) {
	super.writeToNBT(tagCompound);
	tagCompound.setShort("BurnTime", (short) this.furnaceBurnTime);
	tagCompound.setShort("CookTime", (short) this.furnaceBurnTime);
	NBTTagList tagList = new NBTTagList();

	for (int i = 0; i < this.furnaceItemStacks.length; ++i) {
		if (this.furnaceItemStacks[i] != null) {
			NBTTagCompound tagCompound1 = new NBTTagCompound();
			tagCompound1.setByte("Slot", (byte) i);
			this.furnaceItemStacks[i].writeToNBT(tagCompound1);
			tagList.appendTag(tagCompound1);
		}
	}

	tagCompound.setTag("Items", tagList);

	if (this.hasCustomInventoryName()) {
		tagCompound.setString("CustomName", this.furnaceName);
	}
}

@SideOnly(Side.CLIENT)
public int getCookProgressScaled(int par1) {
	return this.furnaceCookTime * par1 / 200;
}

@SideOnly(Side.CLIENT)
public int getBurnTimeRemainingScaled(int par1) {
	if (this.currentBurnTime == 0) {
		this.currentBurnTime = 200;
	}

	return this.furnaceBurnTime * par1 / this.currentBurnTime;
}

public boolean isBurning() {
	return this.furnaceBurnTime > 0;
}

public void updateEntity() {
	boolean flag = this.furnaceBurnTime > 0;
	boolean flag1 = false;

	if (this.furnaceBurnTime > 0) {
		--this.furnaceBurnTime;
	}

	if (!this.worldObj.isRemote) {
		if (this.furnaceBurnTime == 0 && this.canSmelt()) {
			this.currentBurnTime = this.furnaceBurnTime = getItemBurnTime(this.furnaceItemStacks[1]);

			if (this.furnaceBurnTime > 0) {
				flag1 = true;
				if (this.furnaceItemStacks[1] != null) {
					--this.furnaceItemStacks[1].stackSize;

					if (this.furnaceItemStacks[1].stackSize == 0) {
						this.furnaceItemStacks[1] = furnaceItemStacks[1].getItem().getContainerItem(this.furnaceItemStacks[1]);
					}
				}
			}
		}

		if (this.isBurning() && this.canSmelt()) {
			++this.furnaceCookTime;
			if (this.furnaceCookTime == 200) {
				this.furnaceCookTime = 0;
				this.smeltItem();
				flag1 = true;
			}
		} else {
			this.furnaceCookTime = 0;
		}
	}

	if (flag != this.furnaceBurnTime > 0) {
		flag1 = true;
		PupletFurnace.updateBlockState(this.furnaceBurnTime > 0, this.worldObj, this.xCoord, this.yCoord, this.zCoord);
	}

	if (flag1) {
		this.markDirty();
	}
}

private boolean canSmelt() {
	if (this.furnaceItemStacks[0] == null) {
		return false;
	} else {
		ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);
		if (itemstack == null) return false;
		if (this.furnaceItemStacks[2] == null) return true;
		if (!this.furnaceItemStacks[2].isItemEqual(itemstack)) return false;
		int result = furnaceItemStacks[2].stackSize + itemstack.stackSize;
		return result <= getInventoryStackLimit() && result <= this.furnaceItemStacks[2].getMaxStackSize();
	}
}

public void smeltItem() {
	if (this.canSmelt()) {
		ItemStack itemstack = FurnaceRecipes.smelting().getSmeltingResult(this.furnaceItemStacks[0]);

		if (this.furnaceItemStacks[2] == null) {
			this.furnaceItemStacks[2] = itemstack.copy();
		} else if (this.furnaceItemStacks[2].getItem() == itemstack.getItem()) {
			this.furnaceItemStacks[2].stackSize += itemstack.stackSize;
		}

		--this.furnaceItemStacks[0].stackSize;

		if(this.furnaceItemStacks[0].stackSize >= 0){
			this.furnaceItemStacks[0] = null;
		}
	}
}

public static int getItemBurnTime(ItemStack itemstack){
	if(itemstack == null){
		return 0;
	}else{
		Item item = itemstack.getItem();

		if(item instanceof ItemBlock && Block.getBlockFromItem(item) != Blocks.air){
			Block block = Block.getBlockFromItem(item);

			if(block == PupletBlocks.pupletOre){
				return 200;
			}

			if(block.getMaterial() == Material.rock){
				return 300;
			}
		}

		if(item == PupletItems.ingotPuplet) return 1600;
		if(item instanceof ItemTool && ((ItemTool) item).getToolMaterialName().equals("EMERALD")) return 300;
		return GameRegistry.getFuelValue(itemstack);
	}
}

public static boolean isItemFuel(ItemStack itemstack){
	return getItemBurnTime(itemstack) > 0;
}

@Override
public boolean isUseableByPlayer(EntityPlayer player) {
	return this.worldObj.getTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : player.getDistanceSq((double) this.xCoord + 0.5D, (double) this.yCoord + 0.5D, (double) this.zCoord + 0.5D) <= 64.0D;
}

@Override
public void openInventory() {

}

@Override
public void closeInventory() {

}

@Override
public boolean isItemValidForSlot(int par1, ItemStack itemstack) {
	return par1 == 2 ? false : (par1 == 1 ? isItemFuel(itemstack) : true);
}

@Override
public int[] getAccessibleSlotsFromSide(int par1) {
	return par1 == 0 ? slotsBottom : (par1 == 1 ? slotsTop : slotsSides);
}

@Override
public boolean canInsertItem(int par1, ItemStack itemstack, int par3) {
	return this.isItemValidForSlot(par1, itemstack);
}

@Override
public boolean canExtractItem(int par1, ItemStack itemstack, int par3) {
	return par3 != 0 || par1 != 1 || itemstack.getItem() == Items.bucket;
}

}