code does not work, but there is no error

I just did an test code. But, it does not work. Eclipse and the console don't throw an error.

I hope u can help me

Here is my code:

PHP:

import java.util.logging.Logger;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.event.Listener;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;


@SuppressWarnings("unused")
public class test implements CommandExecutor {
 
private main plugin;
 
    public test(main instance) {
        this.plugin = instance;
    }
 
    @Override
    public boolean onCommand(CommandSender s, Command cmd, String label, String[] args) {
        if(cmd.getName().equalsIgnoreCase("test")) {
            Player p = (Player)s;
            plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
                public void run() {
                Bukkit.broadcastMessage("This message should be sent after 3 seconds");
                }
                }, 20L);
         
        }
    return true;
    }

}

 

Yes I have made an plugin.yml

 

thx, im gonna test that

 

PHP:

package main;


import org.bukkit.plugin.java.JavaPlugin;

public class main extends JavaPlugin{
 
    public void onEnable() {
        new test(this);
    }
 
}

 

Okay it worked finally, thx for the help