FileHandler.java

import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;

import java.io.File;
import java.nio.file.Path;

public class FileHandler {

    private FileConfiguration config = new YamlConfiguration();
    private File file;

    public FileHandler(File file) {
        this.file = file;
    }

    public FileConfiguration create() {
        try {
            file.createNewFile();
            config.load(file);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return config;
    }

    public final FileConfiguration save() {
        try {
            config.save(file);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return config;
    }

    private final FileConfiguration load(File file) {
        try {
            config.load(file);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return config;
    }

    public final FileConfiguration reload() {
        try {
            config.load(file);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return config;
    }

    public FileConfiguration get(Path path) {
        File file = path.toFile();
        if (!file.exists()) {
            return null;
        }
        return load(file);
    }

    public final FileConfiguration getConfig() {
        return config;
    }

}