Will my Util // API work?

Hey all, I'm trying to create a little API for creating additional YML datafolders along with a config; here's what I have so far.

Code (Java):

    public void setDataFolder(FileConfiguration fileData, String file, String path, Object... value) {
        if (new File(Main.getInstance().getDataFolder(), file).isFile()) {
            fileData.set(path, value);
        }
    }

    public void saveDataFolder(FileConfiguration f, String fileName) {
        try {
            f.save(new File(Main.getInstance().getDataFolder(), fileName));
        } catch (IOException e) {
            Bukkit.getLogger().info("Failed saving to data.yml: ");
            e.printStackTrace();
        }
    }

    public void createDataFolder(String fileName) {
        FileConfiguration data = null;
        if (new File(Main.getInstance().getDataFolder(), fileName).isFile()) {
            data = YamlConfiguration.loadConfiguration(new File(Main.getInstance().getDataFolder(), fileName));
            Bukkit.getLogger().info("Successfully loaded existing " + fileName + "!");
        } else try {
            new File(Main.getInstance().getDataFolder(), fileName).createNewFile();
            data = YamlConfiguration.loadConfiguration(new File(Main.getInstance().getDataFolder(), fileName));
            data.createSection("users");
            saveDataFolder(data, fileName);
            Bukkit.getLogger().info("Successfully generated a new " + fileName +"!");
        } catch (IOException e) {
            Bukkit.getLogger().info("Failed to generate a new " + fileName + ":");
            e.printStackTrace();
        }
    }