My Plugin Is Not Working!

Can someone help me i cant figure this out!!!

This plugin is supposed to launch a firework when a player joins.
Help would be incredibly appreciated
@mrCookieSlime

Code:

package me.KingMeowww.JoinWidDeFiaWorkz;

import org.bukkit.Bukkit;
import org.bukkit.Color;
import org.bukkit.FireworkEffect;
import org.bukkit.FireworkEffect.Type;
import org.bukkit.entity.Firework;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.inventory.meta.FireworkMeta;
import org.bukkit.plugin.java.JavaPlugin;
public class Main extends JavaPlugin implements Listener {
    
        public void onEnable(){
                Bukkit.getServer().getPluginManager().registerEvents(this, this);
        }
    
        @EventHandler
        public void onPlayerJoin (final PlayerJoinEvent pje) {
                        Bukkit.getServer().getScheduler().scheduleSyncDelayedTask(this, new Runnable(){
                                public void run(){
                                    
                                        Firework f = (Firework) pje.getPlayer().getWorld().spawn(pje.getPlayer().getLocation(), Firework.class);
                                    
                                        FireworkMeta fm = f.getFireworkMeta();
                                        fm.addEffect(FireworkEffect.builder()
                                                        .flicker(false)
                                                        .trail(true)
                                                        .with(Type.BALL)
                                                        .with(Type.BALL_LARGE)
                                                        .with(Type.STAR)
                                                        .withColor(Color.PURPLE)
                                                        .withColor(Color.BLUE)
                                                        .with(Type.CREEPER)
                                                        .withColor(Color.LIME)
                                                        .withColor(Color.ORANGE)
                                                        .with(Type.BURST)
                                                        .withColor(Color.AQUA)
                                                        .with(Type.STAR)
                                                        .withColor(Color.GREEN)
                                                        .withColor(Color.MAROON)
                                                        .withFade(Color.RED)
                                                        .withFade(Color.NAVY)
                                                        .withFade(Color.LIME)
                                                        .build());
                                        fm.setPower(2);
                                        f.setFireworkMeta(fm);
                                    
                                }
                        }, 20);
        }
    
}

 

can you send the error, if there is one...
and what i thought about is that you spawn the firework and edit it after...
i'd create a new firework, build it and afterwards spawn the firework

hope this will help

 

First of all, main classes need to have "extends JavaPlugin" and take a look at this video if you still don't know how to do it

 

Thank you all This help alot

 

@SkyGlue If you're problem is solved, please set this thread to "Solved" by going to Thread Tools > Edit Title > Prefix > Solved.