Test code for inventory/slot parent bug.

ClickInventoryListener.java

package com.example;

import org.spongepowered.api.entity.living.player.Player;
import org.spongepowered.api.event.Listener;
import org.spongepowered.api.event.Order;
import org.spongepowered.api.event.filter.cause.First;
import org.spongepowered.api.event.item.inventory.ClickInventoryEvent;
import org.spongepowered.api.item.inventory.Slot;
import org.spongepowered.api.item.inventory.transaction.SlotTransaction;
import org.spongepowered.api.item.inventory.type.CarriedInventory;

public class ClickInventoryListener {

    @Listener(order = Order.POST)
    public void onClickInventory(ClickInventoryEvent event, @First Player player) {
    
        //Make sure we have a transaction to validate
        if (event.getTransactions().size() <= 0) {
            return;
        }
        
        for(SlotTransaction transaction : event.getTransactions()) {
        
            Slot slot = transaction.getSlot();
            
            if (slot.parent() instanceof CarriedInventory && transaction.getOriginal() != transaction.getFinal()) {
                
                System.out.println("Inventory Event Fired");
                System.out.println("SLOT PARENT: " + slot.parent().toString());
                System.out.println("TARGET INV: " + event.getTargetInventory().toString());
                
            }
        }
    }
}