Repeating task

Hi!
I want to create a repeating task to refresh the header tablist of 1.8 player's.

My code:
Main (onEnable)

Code (Text):

ProxyServer.getInstance().getScheduler().runAsync(this, new TaskRepeating());

TaskRepeating:

Code (Text):

package com.gmail.kukubaczek.bungee.tasks;

import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.connection.ProxiedPlayer;

import com.gmail.kukubaczek.bungee.Main;

public class TaskRepeating implements Runnable {

    public void run() {
       
        for(ProxiedPlayer p : ProxyServer.getInstance().getPlayers()){
            p.sendMessage("1.8");
        }
       
    }

}

How to repeat the task every 5 seconds?

 

I want to do that in BungeeCord.

 

Please help me!