Solved Why is this launching two times?

So I'm making a grenade plugin and for some odd reason this event launches two times.

Code:

  
@EventHandler
    public void onPlayerInteract(PlayerInteractEvent e) {
        Player p = (Player) e.getPlayer();
        if(p.getItemInHand().getType() != Material.SNOW_BALL) return;
        ItemStack s = p.getItemInHand();
        ItemMeta sm = s.getItemMeta();
        if(sm.getDisplayName() == null) return;
        if(!sm.getDisplayName().equalsIgnoreCase("High Explosive Grenade")) return;
        Snowball sn = p.launchProjectile(Snowball.class);
        sn.setShooter(p);
      
        ItemStack snow = new ItemStack(Material.SNOW_BALL, 1);
        ItemMeta snowm = snow.getItemMeta();
        snowm.setDisplayName("High Explosive Grenade");
        snow.setItemMeta(snowm);
      
        p.getInventory().removeItem(snow);
        p.getWorld().playSound(p.getLocation(), Sound.BAT_TAKEOFF, 10.0F, 1.0F);
        snowballs.add(sn);
        e.setCancelled(true);
    }

When I do this, sure it cancels the event, but for some reason it launches two snowballs and takes away two snowballs from my inventory. It's as if the event is launching twice. Why is this?
Thanks.

 

Can you show us the code where you register the event? And please double check if you are somehow registering the event multiple times.

 

Stupid me was being stupid. Registered the event twice, hadn't thought about it until now. Thanks for bringing it to my mind.