Help me

package fr.swixiz.griopcraft;

import java.io.File;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

import fr.swixiz.griopcraft.commands.BroadcastCommand;
import fr.swixiz.griopcraft.commands.ReportCommands;
import fr.swixiz.griopcraft.events.Join;

public class GriopCraft extends JavaPlugin{


	public static String joinMessage;




	public void onEnable(){

		getCommand();
		Listener();

		File config = new File(getDataFolder(), "config.yml");

		try{
			if(!config.exists()){
				getConfig().options().copyDefaults(true);

				getConfig().set("Chat.joinmessage", "&7[&a+&7] &a");

				String joinMessage = getConfig().getString("Chat.joinmessage");

				this.joinMessage = ChatColor.translateAlternateColorCodes('&', joinMessage);


				saveConfig();
			}


		}

		catch(Exception e){
			e.printStackTrace();
		}
	}

	public void getCommand(){
		getCommand("report").setExecutor(new ReportCommands());
		getCommand("annonce").setExecutor(new BroadcastCommand());
		getCommand("bc").setExecutor(new BroadcastCommand());
	}

	public void Listener(){
		PluginManager pm = Bukkit.getServer().getPluginManager();

		pm.registerEvents(new Join(), this);
	}

}