Function dropItem doesnt work inside a BukkitRunnable?

I cant spawn an item using world.dropItem inside this bukkitRunnable and idk why, i have tried to create a function, that dosnt work as well.
Yet i have a command to set the meteor spawnpoints in this plugin and when i put w.dropiItem using the location of the player that typed the command it works!
I have been around this for hours and idk what to do.

Code:

package me.bukkit.kingofmars.hmeteors;

import java.io.File;
import java.util.ArrayList;
import java.util.Random;

import javax.print.CancelablePrintJob;

import org.bukkit.Bukkit;
import org.bukkit.Effect;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.server.PluginEnableEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.scheduler.BukkitTask;

import me.bukkit.kingofmars.hmeteors.commands.setmeteor;
import me.bukkit.kingofmars.hmeteors.files.fileMeteor;
import me.bukkit.kingofmars.hmeteors.listeners.meteorFall;
import net.md_5.bungee.api.ChatColor;
import net.minecraft.server.v1_8_R3.EntityFireball;

public class Main extends JavaPlugin{
 
    private static Plugin plugin;
 
    public int atoa;
 
    public void onEnable() {
        plugin = this;
     
        ligarConfig();
        ligarCustomConfigs();
        ligarComandos();
        timer();
        timer2();
        timer3();
        timerUltimo();
        acabouQueda();
     
    }
 
    public void onDisable() {
     
    }
 
    public static void registerEvents(org.bukkit.plugin.Plugin plugin, Listener... listeners) {
        for (Listener listener : listeners) {
        Bukkit.getServer().getPluginManager().registerEvents(listener, plugin);
            }
        }
 
    public void ligarConfig() {
        getConfig().options().copyDefaults(true);
        saveConfig();
    }
 
    public void ligarCustomConfigs(){
        fileMeteor.setup();
        fileMeteor.get().options().copyDefaults(true);
        fileMeteor.save();
    }
 
    public void ligarComandos() {
        getCommand("setmeteor").setExecutor(new setmeteor());
    }
 
    public int mu_rand(int min, int max){
        Random rand = new Random();
        return rand.nextInt((max - min) + 1) + min;
    }
 
    public void acabouQueda()
    {
        this.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable()
        {
         
            public void run()
            {
                atoa = mu_rand(1, 10);
             
         
            }
        }
        , 0, 12100); // manda logo no inicio / espera 10 min e 10 sec
    }
 
 
    public void timer()
    {
        this.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable()
        {
         
            public void run()
            {
                System.out.println("Atoa igual a "+ atoa);
                Bukkit.broadcastMessage(ChatColor.RED + "An meteor will fall in under 10 minutes at " + ChatColor.WHITE + "X:" + fileMeteor.get().getInt("Meteors ." + atoa + ".x") + " Z:" + fileMeteor.get().getInt("Meteors ." + atoa + ".z"));
            }
        }
        , 20, 12400); // manda logo no inicio / espera 10 min e 10 sec
    }
 
    public void timer2()
    {
        this.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable()
        {
         
            public void run()
            {
                System.out.println("Atoa igual a "+ atoa);
                Bukkit.broadcastMessage(ChatColor.RED + "An meteor will fall in under 5 minutes at " + ChatColor.WHITE + "X:" + fileMeteor.get().getInt("Meteors ." + atoa + ".x") + " Z:" + fileMeteor.get().getInt("Meteors ." + atoa + ".z"));
                }
            }
        , 6020, 12400); // espera 5 min e 10 sec
    }
 
    public void timer3()
    {
     
        this.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable()
        {
            public void run()
            {
                System.out.println("Atoa igual a "+ atoa);
                Bukkit.broadcastMessage(ChatColor.RED + "An meteor will fall in under 1 minute at " + ChatColor.WHITE + "X:" + fileMeteor.get().getInt("Meteors ." + atoa + ".x") + " Z:" + fileMeteor.get().getInt("Meteors ." + atoa + ".z"));
            }
        }
        , 10820, 12400); // manda espera 10 sgundos
    }
 
    public void timerUltimo()
    {
        this.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable()
        {

            public void run()
            {
                System.out.println("Atoa igual a "+ atoa);
                World w = Bukkit.getWorld("world");
                FileConfiguration i = fileMeteor.get();
                double x = i.getDouble("Meteors ." + atoa + ".x");
                double y = i.getDouble("Meteors ." + atoa + ".y");
                double z = i.getDouble("Meteors ." + atoa + ".z");
             
                outroRunnable();
                Bukkit.broadcastMessage(ChatColor.RED + "An meteor is falling on the coordinates: " + ChatColor.WHITE + "X:" + fileMeteor.get().getInt("Meteors ." + atoa + ".x") + " Z:" + fileMeteor.get().getInt("Meteors ." + atoa + ".z"));
            }
        }
        , 60, 12400);
    }
 
        public void outroRunnable() {     
            final BukkitTask loop = new BukkitRunnable() {
             
             
                World w = Bukkit.getWorld("world");
                FileConfiguration i = fileMeteor.get();
                double x = i.getDouble("Meteors ." + atoa + ".x");
                double y = i.getDouble("Meteors ." + atoa + ".y") + 120;
                double z = i.getDouble("Meteors ." + atoa + ".z");
             
                @Override
                public void run() {
                 
                    y = y - 4;
                    Location l = new Location (w, x, y, z);
                    w.playEffect(l, Effect.EXPLOSION_HUGE, 300);
                    System.out.println("explodiuuu em " + x + " " + y + " " + z);
                 
 
                 
                    if (y <= i.getDouble("Meteors ." + atoa + ".y")) {
                     
                        cancel();
                        ItemStack sFragment = new ItemStack(Material.NETHER_STAR);
                        w.dropItem(l, sFragment);
                    }
                }
             
            }.runTaskTimerAsynchronously(this, 5, 5);
         
        }

 
 
 
}

 

Edit: I tested and it worked!
Thank you a lot!
Is there any way of evaluate on this forums?

 

@timtower it think he means to "rate" you. Like your help. I do not know of a way to do this.

 

The closest i can think of is liking the answer and writing a good "review" on the user's profile.