Transfer dropped item to nearby special hopper

This is what I got so far:

Code:

    @EventHandler
    public void onKingFisherPlace(BlockPlaceEvent event){
        if(event.getItemInHand().getItemMeta().getDisplayName() != null){
            if(event.getItemInHand().getItemMeta().getDisplayName().equals(ChatColor.BLUE + "Kingfisher Attraction Beam")){
               
                Block kingfisher = event.getBlock();
                event.getPlayer().sendMessage(ChatColor.GREEN + "Kingfisher Attraction Beam module placed.");
              
                    Bukkit.getScheduler().scheduleSyncRepeatingTask(this.plugin, new Runnable() {
                        public void run() {
                            World world = kingfisher.getWorld();
                            int squared = 4;
                            Entity pigmark = world.spawnEntity(kingfisher.getLocation(), EntityType.PIG);
                            pigmark.remove();
                            Location loc = kingfisher.getLocation();
                                for(Entity e : pigmark.getNearbyEntities(2, 2, 2)) {
                                    if(e.getType() == EntityType.DROPPED_ITEM) {
                                        if(e.getLocation().distanceSquared(loc) <= squared) {
                                           ItemStack is = ((ItemStack) e).clone();
                                           ((InventoryHolder) kingfisher).getInventory().addItem(is);
                                           e.remove();
                                          
                                           }
                                    }
                                }
                           
                        }
                    }, 1, 1);
           
            }
        }
    }

   @EventHandler
    public void onPlayerMove(PlayerInteractEvent event){
        if(event.getClickedBlock() != null){
            event.getPlayer().sendMessage(ChatColor.GREEN + "1");
            if(event.getClickedBlock() instanceof Hopper){
                event.getPlayer().sendMessage(ChatColor.RED + "1");
                Hopper kingfisher = (Hopper) event.getClickedBlock();
                if(kingfisher.getInventory().getName().equalsIgnoreCase(ChatColor.BLUE + "Kingfisher Attraction Beam")){
                   
                    Bukkit.getScheduler().scheduleSyncRepeatingTask(this.plugin, new Runnable() {
                        public void run() {
                            World world = kingfisher.getWorld();
                            int squared = 4;
                            Entity pigmark = world.spawnEntity(kingfisher.getLocation(), EntityType.PIG);
                            pigmark.remove();
                            Location loc = kingfisher.getLocation();
                                for(Entity e : pigmark.getNearbyEntities(2, 2, 2)) {
                                    if(e.getType() == EntityType.DROPPED_ITEM) {
                                        if(e.getLocation().distanceSquared(loc) <= squared) {
                                           ItemStack is = ((ItemStack) e).clone();
                                           kingfisher.getInventory().addItem(is);
                                           e.remove();
                                          
                                           }
                                    }
                                }
                           
                        }
                    }, 1, 1);
                    event.getPlayer().sendMessage(ChatColor.GREEN + "Hopper reactivated.");
                   
                   
                }
            }
        }
       
    }

First off, the pig "kills" itself, but there would be this glitchy image of it still there.
And the block can't be casted to a hopper. Items with that displayname are hoppers (Stuff in my plugin..)
And the "nearby" entity when close by the hopper can't be casted to itemstack.

 

@Hex_27 Hopper does not extend Block, it extends BlockState. Use (Hopper) block.getState();
Second, there are more than one entity. Try EnderPearl, it'll hit the ground and destroy itself.
Third, ItemStack is an inventory item representation, while Item extends Entity. Cast your entity to Item, then use #getItemStack().