applyEntityAI Cannot reduce the visibility of the inherited method from EntityZombie

[Criminox]

So I am making a custom zombie mob for my mod and I have got the error stated in the title. I'll provide the code below but it isn't fully complete as of yet. Any ideas?

package com.crim.parallelworlds.entities;

import com.crim.parallelworlds.Ref;

import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAILookIdle;
import net.minecraft.entity.ai.EntityAIMoveThroughVillage;
import net.minecraft.entity.ai.EntityAIMoveTowardsRestriction;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.EntityAISwimming;
import net.minecraft.entity.ai.EntityAIWander;
import net.minecraft.entity.ai.EntityAIWatchClosest;
import net.minecraft.entity.ai.EntityAIZombieAttack;
import net.minecraft.entity.monster.EntityIronGolem;
import net.minecraft.entity.monster.EntityPigZombie;
import net.minecraft.entity.monster.EntityZombie;
import net.minecraft.entity.passive.EntityVillager;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class CelestialZombie extends EntityZombie{
	public static final DataParameter<Boolean> ARMS_RAISED = EntityDataManager.createKey(CelestialZombie.class, DataSerializers.BOOLEAN);
	public static final ResourceLocation LOOT = new ResourceLocation(Ref.MODID, "entities/celestial_zombie");
	
	public CelestialZombie(World worldIn){
		super(worldIn);
		setSize(0.6F, 1.95F);
	}
	
	@Override
	protected void entityInit(){
		super.entityInit();
		this.getDataManager().register(ARMS_RAISED, Boolean.valueOf(false));
	}
	
	@Override
	protected void applyEntityAttributes(){
		super.applyEntityAttributes();
		
		this.getEntityAttribute(SharedMonsterAttributes.FOLLOW_RANGE).setBaseValue(35.0D);
		this.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue(0.13D);
		this.getEntityAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).setBaseValue(0.5D);
		this.getEntityAttribute(SharedMonsterAttributes.ARMOR).setBaseValue(4.0D);
		
	}
	
	public void setArmsRaised(boolean armsRaised){
		this.getDataManager().set(ARMS_RAISED, Boolean.valueOf(armsRaised));
		
	}
	
	@SideOnly(Side.CLIENT)
	public boolean isArmsRaised(){
		return this.getDataManager().get(ARMS_RAISED).booleanValue();
	}
	
	@Override
	protected void initEntityAI(){
		this.tasks.addTask(0, new EntityAISwimming(this));
		this.tasks.addTask(2, new EntityAIZombieAttack(this, 1.0D, false));
		this.tasks.addTask(5, new EntityAIMoveTowardsRestriction(this, 1.0D));
		this.tasks.addTask(7, new EntityAIWander(this, 1.0D));
		this.tasks.addTask(8, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
		this.tasks.addTask(8, new EntityAILookIdle(this));
		this.applyEntityAI();
	}
	
	private void applyEntityAI(){
		this.tasks.addTask(6, new EntityAIMoveThroughVillage(this, 1.0D, false));
		this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true, new Class[]{EntityPigZombie.class}));
		this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, true));
		this.targetTasks.addTask(3, new EntityAINearestAttackableTarget(this, EntityVillager.class, false));
		this.targetTasks.addTask(3, new EntityAINearestAttackableTarget(this, EntityIronGolem.class, true));
	}

}