Working with drops on death?

I've been trying to make a plugin where when a player dies they don't drop specific items but i can't seem to get it working and i've tried searching around aswell but couldn't find anything. :/
Example:

Code:Java

@EventHandler
public void onDeath(PlayerDeathEvent event) {
    Iterator<ItemStack> drops = event.getDrops().iterator();
    while (drops.hasNext()) {
        if (drops.next()./*is special item*/) {
            drops.remove();
        }
    }
}

What i'm trying to do is get the list of drops and remove the items from the list of drops and hope that it would make it stay in the player's inventory instead of removing it completely.

 

@KarimAKL
The iterator is not the same as the List. When removing an item, call "evetn.getDrops().remove(....)"

 

@Zombie_Striker I see, i tried changing it to this:

Code:Java

@EventHandler
public void onDeath(PlayerDeathEvent event) {
    Iterator<ItemStack> drops = event.getDrops().iterator();
    while (drops.hasNext()) {
        if (drops.next() != null && drops.next().getType() != Material.AIR && drops.next()./*is special item*/) {
            event.getDrops().remove(drops.next());
        }
    }
}

EDIT: Nvm, no error now. Just had to check for null first, i've changed the code above to current aswell. But it still doesn't work, using the code above it comes with no errors or stacktraces but all the items still drop.