Compilation error when copying source code

Okay, here the code of my "dummy", however before pasting original minecraft tnt block code compulation runs good

package mod.mcreator;

import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.common.registry.ForgeRegistries;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;

import net.minecraft.util.BlockRenderLayer;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.Item;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.client.Minecraft;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.block.material.Material;
import net.minecraft.block.SoundType;
import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityTNTPrimed;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.world.Explosion;
import net.minecraft.world.World;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityTNTPrimed;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumHand;
import net.minecraft.util.SoundCategory;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.Explosion;
import net.minecraft.world.World;

public class mcreator_dummy extends tnt_mod.ModElement {

    public static Block block;
    static {
        block = new BlockCustom().setHardness(0F).setResistance(10F).setLightLevel(0F).setUnlocalizedName("dummy").setLightOpacity(255)
                .setCreativeTab(mcreator_customTntTab.tab);
    }
    
    
    public void preInit(FMLPreInitializationEvent event) {
        block.setHarvestLevel("pickaxe", 1);
        block.setRegistryName("dummy");
        ForgeRegistries.BLOCKS.register(block);
        ForgeRegistries.ITEMS.register(new ItemBlock(block).setRegistryName(block.getRegistryName()));
    }

    
    public void load(FMLInitializationEvent event) {
        if (event.getSide() == Side.CLIENT) {
            Minecraft.getMinecraft().getRenderItem().getItemModelMesher()
                    .register(Item.getItemFromBlock(block), 0, new ModelResourceLocation("tnt_mod:dummy", "inventory"));
        }
    }

    public static class BlockCustom extends Block {

        public BlockCustom() {
            super(Material.ROCK);
            setSoundType(SoundType.GROUND);
        }

        @SideOnly(Side.CLIENT)
        
        public BlockRenderLayer getBlockLayer() {
            return BlockRenderLayer.SOLID;
        }
    }

 public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ)
    {
        ItemStack itemstack = playerIn.getHeldItem(hand);

        if (!itemstack.isEmpty() && (itemstack.getItem() == Items.FLINT_AND_STEEL || itemstack.getItem() == Items.FIRE_CHARGE))
        {
            this.explode(worldIn, pos, state.withProperty(EXPLODE, Boolean.valueOf(true)), playerIn);
            worldIn.setBlockState(pos, Blocks.AIR.getDefaultState(), 11);

            if (itemstack.getItem() == Items.FLINT_AND_STEEL)
            {
                itemstack.damageItem(1, playerIn);
            }
            else if (!playerIn.capabilities.isCreativeMode)
            {
                itemstack.shrink(1);
            }

            return true;
        }
        else
        {
            return super.onBlockActivated(worldIn, pos, state, playerIn, hand, facing, hitX, hitY, hitZ);
        }
    }

public boolean canDropFromExplosion(Explosion explosionIn)
    {
        return false;
    }

 public IBlockState getStateFromMeta(int meta)
    {
        return this.getDefaultState().withProperty(EXPLODE, Boolean.valueOf((meta & 1) > 0));
    }

 public int getMetaFromState(IBlockState state)
    {
        return ((Boolean)state.getValue(EXPLODE)).booleanValue() ? 1 : 0;
    }

    protected BlockStateContainer createBlockState()
    {
        return new BlockStateContainer(this, new IProperty[] {EXPLODE});
    }
    
}
 

UPD: yes you will notiсe a lot useless imports and some of them are doubled. However compilator reacts 'ok' about them

Okay, here the full gradle log

D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:95: error: cannot find symbol
            this.explode(worldIn, pos, state.withProperty(EXPLODE, Boolean.valueOf(true)), playerIn);
                                                          ^
  symbol:   variable EXPLODE
  location: class mcreator_dummy
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:111: error: cannot find symbol
            return super.onBlockActivated(worldIn, pos, state, playerIn, hand, facing, hitX, hitY, hitZ);
                        ^
  symbol: method onBlockActivated(World,BlockPos,IBlockState,EntityPlayer,EnumHand,EnumFacing,float,float,float)
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:122: error: cannot find symbol
        return this.getDefaultState().withProperty(EXPLODE, Boolean.valueOf((meta & 1) > 0));
                                                   ^
  symbol:   variable EXPLODE
  location: class mcreator_dummy
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:122: error: cannot find symbol
        return this.getDefaultState().withProperty(EXPLODE, Boolean.valueOf((meta & 1) > 0));
                   ^
  symbol: method getDefaultState()
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:127: error: cannot find symbol
        return ((Boolean)state.getValue(EXPLODE)).booleanValue() ? 1 : 0;
                                        ^
  symbol:   variable EXPLODE
  location: class mcreator_dummy
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:132: error: cannot find symbol
        return new BlockStateContainer(this, new IProperty[] {EXPLODE});
                                                              ^
  symbol:   variable EXPLODE
  location: class mcreator_dummy
D:\Minecraft\MCreator\forge\build\sources\main\java\mod\mcreator\mcreator_dummy.java:132: error: incompatible types: mcreator_dummy cannot be converted to Block
        return new BlockStateContainer(this, new IProperty[] {EXPLODE});
                                       ^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
7 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 12s