Zombie that leaves trial of fire behind

I want to make a zombie that walks towards the nearest player and leaves a trial of fire blocks where he has walked, the caster of the spell should not be targeted, this is the code that summons him:

Code:

 @EventHandler
            public void onProjectileHit2(ProjectileHitEvent event) {
                if (event.getEntity().getType() == EntityType.EGG) {
                    Egg egg = (Egg) event.getEntity();
                    @SuppressWarnings("deprecation")
                    Player player = (Player) egg.getShooter();       
                    int value6 = getConfig().getInt(player.getName() + ".KitValue");
                    if(value6 == 5) {
                        takeKitValue(player, 5);
                    if (player.getItemInHand().getType() == Material.STONE_SWORD){
                        Location loc = egg.getLocation();
                        Entity AS = loc.getWorld().spawnEntity(loc, EntityType.ZOMBIE);
                        

 

Here's what you need to do it'll make your life MUCH easier. Store the entities previous location in a hashmap, then set a fire block at the zombies previous location!
of course if your using like a Move event or something like that. If not, just create a loop that runs the placing of the fire block at the entities previous location!

 

@mkezar right... how...

 

Well make a hashmap (tutorials are online) then make a BukkitRunnable (tutorials online)