Spectator Inventory

public static void openChest(Player p){
  Inventory inv = Bukkit.createInventory(null, Math.min(((Bukkit.getOnlinePlayers().size() - 2) / 9) * 9 + 9, 54));
        int i = 0;
        for(Player pls : Bukkit.getOnlinePlayers()){
            ItemStack skull = new ItemStack(Material.SKULL_ITEM, 1, (short)3);
            SkullMeta meta = (SkullMeta) skull.getItemMeta();
            meta.setOwner(pls.getName());
            meta.setDisplayName("§7Joueur:"+pls.getName());
            skull.setItemMeta(meta);

            inv.setItem(i, skull);
            i++;
        }


  p.openInventory(inv);
 }