@Override
 public Inventory getInventory(MinecartMember<?> member) {
   ItemStack item = null;
   if (member.getEntity().hasPlayerPassenger()) {
     item = member.getPlayerInventory().getItemInHand();
   }
   if (LogicUtil.nullOrEmpty(item)) {
     return new InventoryBaseImpl(new org.bukkit.inventory.ItemStack[0]);
   } else {
     return new InventoryBaseImpl(new org.bukkit.inventory.ItemStack[] {item});
   }
 }
 @Override
 public Inventory getInventory(MinecartGroup group) {
   ArrayList<org.bukkit.inventory.ItemStack> items =
       new ArrayList<org.bukkit.inventory.ItemStack>();
   for (MinecartMember<?> member : group) {
     if (member.getEntity().hasPlayerPassenger()) {
       ItemStack item = member.getPlayerInventory().getItemInHand();
       if (!LogicUtil.nullOrEmpty(item)) {
         items.add(item);
       }
     }
   }
   return new InventoryBaseImpl(items, false);
 }