Despawning mob

Alright, so im trying to make it so the Guardian spawns, fires it laser, and then despawn, um trying to add a delayed task to the command but its not working.

This is my code in this class so far...

Code (Text):

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.craftbukkit.v1_11_R1.entity.CraftGuardian;
import org.bukkit.craftbukkit.v1_11_R1.entity.CraftPlayer;
import org.bukkit.entity.Entity;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Guardian;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

import net.minecraft.server.v1_11_R1.EntityGuardian;
import net.minecraft.server.v1_11_R1.EntityPlayer;

import java.util.HashMap;
import java.util.Map;

public class GuardianBeam {

    private static Main main;
    public GuardianBeam(Main main) {
        GuardianBeam.main = main;



    }


    public static void LaunchAnimation(final Player target)
    {
        final Map<Player, Entity> entityMap = new HashMap<>();
        Location location = target.getLocation().toVector().add(target.getLocation().getDirection().multiply(5)).toLocation(target.getWorld()).add(0, 2, 0);

        final Guardian dabeast = target.getWorld().spawn(location, Guardian.class);
        entityMap.put(target, dabeast);
        LivingEntity pig = (LivingEntity) target.getWorld().spawnEntity(location, EntityType.PIG);
        pig.setAI(false);
        pig.setPassenger(dabeast);
        pig.addPotionEffect(new PotionEffect(PotionEffectType.INVISIBILITY, 10000000, 2));
        EntityGuardian entity = (EntityGuardian) ((CraftGuardian) dabeast).getHandle();
        EntityPlayer ep = ((CraftPlayer) target).getHandle();
        entity.setGoalTarget(ep);
        Bukkit.broadcastMessage(ChatColor.RED + "Guardian Class Online");

        Bukkit.getScheduler().scheduleSyncDelayedTask(main, new Runnable(){
            @Override
            public void run() {
                entityMap.get(target).remove();
            }
        },100L);
    }
   
    //dabeast.setAI(false);

}
   

 

It kind of works. It spawns the guardian, it fires its laser, but it doesn't despawn. Any replies would be helpful.

 

So i should just replace

Code (Text):

entityMap.get(target).remove();

with

Code (Text):

 daBeast.remove()

?

Also, is everything else correct?

 

Is everything around line 29 correct?