Particle Effects?

My Problem: (I Feel kinda stupid posting about this problem) My problem is, I Want to make when a player joins a particle effect will be played. But there aren't any errors..

Code

Code:java

@EventHandler
    public void onJoin(PlayerJoinEvent e){
        final Player p = e.getPlayer();
 
        if(p.hasPermission("Plugin.Login.Diamond")){
            p.getWorld().playEffect(p.getLocation().add(0, 1, 0), Effect.POTION_BREAK, 10);
        }

Registered:

Code:java

        pm.registerEvents(new OnJoin(this), this);

Whole class:

Code:java

package org.m.Plugin.Events;
 
import java.io.File;
import java.io.IOException;
 
import org.bukkit.Bukkit;
import org.bukkit.Effect;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
import org.m.Plugin.Main.Main;
import org.m.Plugin.Menus.Spawn;
 
public class OnJoin implements Listener{
    File C;
    FileConfiguration CZ;
    public Main plugin;
 
    public OnJoin(Main plugin)
    {
        this.plugin = plugin;
    }
    @EventHandler
    public void onJoin(PlayerJoinEvent e){
        final Player p = e.getPlayer();
 
        if(p.hasPermission("Plugin.Login.Diamond")){
            p.getWorld().playEffect(p.getLocation().add(0, 1, 0), Effect.POTION_BREAK, 10);
        }
 
        C = new File(plugin.getDataFolder(), "Data.yml");
        CZ = YamlConfiguration.loadConfiguration(C);
 
        p.getInventory().setItem(0, Spawn.PlayMenu());
 
          if(p.getWorld().getName().equals(plugin.getConfig().getString("SpawnWorld"))){
              Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {
                  public void run() {
                      if(p.getWorld().getName().equals(plugin.getConfig().getString("SpawnWorld"))){
                          p.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 20, 3));
                          p.setFoodLevel(20); 
                      }
                  }
              }, 10, 10);
          }
 
        int X = CZ.getInt("Lobby.X");
        int Z = CZ.getInt("Lobby.Z");
        int Y = CZ.getInt("Lobby.Y");
        World w = this.plugin.getServer().getWorld(CZ.getString("Lobby.World"));
        p.teleport(new Location(w, X, Y, Z));
    }
    public void onPlayerQuit(PlayerQuitEvent event) {
        C = new File(plugin.getDataFolder(), "Data.yml");
        CZ = YamlConfiguration.loadConfiguration(C);
        Player p = event.getPlayer();
        double X = p.getLocation().getX();
        double Y = p.getLocation().getY();
        double Z = p.getLocation().getZ();
        String world = p.getWorld().getName();
          CZ.set(p.getUniqueId() + ".X", Double.valueOf(X));
          CZ.set(p.getUniqueId() + ".Y", Double.valueOf(Y));
          CZ.set(p.getUniqueId() + ".Z", Double.valueOf(Z));
          CZ.set(p.getUniqueId() + ".World", world);
          SaveNC();
    }
    public void SaveNC(){
        try {
            CZ.save(C);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}
 

No Errors no nothing..

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Use debugging, make it so when the player joins, send him '1' or something.