Iterate through config to give specific items to specific inventory slots

So, I am trying to make a kit plugin. I save kits in a config file with the inventory slot. But I need help giving the items back to the player in specific inventory slots. I am unsure if the following for loop will work.

Code:java

        String path = kitName + ".";
 
        ConfigurationSection s = kits.getConfigurationSection(kitName + ".items");
        for (String str : s.getKeys(false)) {
            int slot = Integer.parseInt(str);
            if (0 > slot && slot > 36)
                return;
 
            String string    = kitName + ".items." + slot + ".";
            String type    = kits.getString(string + "type");
            String name    = kits.getString(string + "name");
            int amount      = kits.getInt(string + "amount");
 
            ItemStack is    = new ItemStack(Material.matchMaterial(type.toUpperCase()), amount);
            ItemMeta im    = is.getItemMeta();
 
            im.setDisplayName(name);
            is.setItemMeta(im);
 
            p.getInventory().setItem(slot, is);
        }
 
        // We also need to give them armor.
        String helmet        = kits.getString(path + "armor.helmet").toUpperCase();
        String chestplate    = kits.getString(path + "armor.chestplate").toUpperCase();
        String leggings    = kits.getString(path + "armor.leggings").toUpperCase();
        String boots        = kits.getString(path + "armor.boots").toUpperCase();
 
        // Make sure each isn't null.
        if (helmet != null)
            p.getInventory().setHelmet(new ItemStack(Material.matchMaterial(helmet)));
        if (chestplate != null)
            p.getInventory().setChestplate(new ItemStack(Material.matchMaterial(chestplate)));
        if (leggings != null)
            p.getInventory().setLeggings(new ItemStack(Material.matchMaterial(leggings)));
        if (boots != null)
            p.getInventory().setBoots(new ItemStack(Material.matchMaterial(boots)));

This is what the config will look like (sample):

Code:

kits:
  kitName:
    items:
      '0':
        type: diamond
        name: 'blah'
        amount: 4
      '10':
        type: gold_ingot
        name: 'gold'
        amount: 12
    armor:
      helmet: diamond_helmet
      leggings: gold_boots  

You may be asking why I haven't tested it. This is because it is such a large plugin that I am not even close to completing yet. If I tested it in the current stage, it might not even compile properly.