SpawnWither

import net.minecraft.server.v1_8_R3.Entity;
import net.minecraft.server.v1_8_R3.NBTTagCompound;
import org.bukkit.Location;
import org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Wither;

public class SpawnWither {

    private Wither wither;
    private Location location;
    private String nameWither;

    public SpawnWither(Location location, String nameWither){
        this.location = location;
        this.nameWither = nameWither;
        this.wither = (Wither) this.location.getWorld().spawnEntity(this.location, EntityType.WITHER);
        Entity nmsEntity = ((CraftEntity) this.wither).getHandle();
        nmsEntity.setCustomName(this.nameWither);
        nmsEntity.setCustomNameVisible(true);

        this.wither.setHealth(15);

        NBTTagCompound witherTag = nmsEntity.getNBTTag();
        if(witherTag == null){
            witherTag = new NBTTagCompound();
        }

        nmsEntity.c(witherTag);
        witherTag.setInt("NoAI", 1);
        nmsEntity.f(witherTag);
    }

    public double getHealth(){
        return wither.getHealth();
    }

    public void setHealth(double health){
        wither.setHealth(health);
    }

    public Location getLocation(){
        return location;
    }

    public String getName(){
        return nameWither;
    }
}