Adddefaults and save them

Main class:

Code:

package me.ItzzAran.mtwapen;

import java.util.ArrayList;
import java.util.List;

import org.bukkit.plugin.java.JavaPlugin;

public class main extends JavaPlugin{
    List<String> wl = new ArrayList<>();
    @Override
    public void onEnable() {
        new wapens(this);
        getConfig().addDefault("Wapens", wl);
        saveDefaultConfig();
        saveConfig();
        getConfig().options().copyDefaults(true);
    }

}

Command class:

Code:

this.plugin.getConfig().set("Wapens", wl);
                    this.plugin.getConfig().addDefault("Wapen-info."+args[1]+".Naam", args[1]);
                    this.plugin.getConfig().addDefault("Wapen-info."+args[1]+".Item", Material.STONE_HOE);
                    this.plugin.getConfig().addDefault("Wapen-info."+args[1]+".Cooldown", 1);
                    this.plugin.getConfig().options().copyDefaults(true);
                    this.plugin.saveConfig();

I want to create a weapon with a command. And if you create a weapon it will save all its information. Alls works fine, until i restart the server. It doesn't save the defaults. I have already made multiple other plugins with the config. But there i iniate the defaults in the onEnable. Does that make any difference? Or what did i do wrong? It should save it.

 

@ItzzAran don't use default. just use set if you want to override