Hello, I have created a capability for item to allow players to apply potion effects on swords. However it doesn't work. Everything seems to be OK, but I'm not able to apply my capability to any item. What's the problem?   Capability: public class Poison implements IPoison{ private PotionType type; private List<PotionEffect> effects = new ArrayList<PotionEffect>(); private int remaininghits; @Override public void setHitsRemaining(int hits) { this.remaini