Setting and teleporting to a spawn for each world.

So I've been working on a plugin that creates per world spawns.

I've made two commands:
* /setspawn [x] [y] [z] [world] - this sets the spawn for that world at the specified coordinates otherwise at the player's location.
* /spawn [player] [world] - Teleports the specified player to the spawn of the specified world, otherwise it teleports the player who sent the command.

Here is my code for /setspawn

Code:java

package me.jts3304.masterplugin.commands;
 
import me.jts3304.masterplugin.utils.CommandSource;
import me.jts3304.masterplugin.utils.Person;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.World;
import org.bukkit.command.Command;
 
public class Commandsetspawn extends MasterPluginCommand
{
    public Commandsetspawn()
    {
        super("setspawn");
    }
 
    @Override
    public void run(Server server, CommandSource source, Command command, String label, String[] args) throws Exception
    {
        if(args.length == 4)
        {
            if(Integer.valueOf(args[0]) == null)
            {
                source.sendMessage(ChatColor.RED + "The first argument should be a number.");
            }
            if(Integer.valueOf(args[1]) == null)
            {
                source.sendMessage(ChatColor.RED + "The second argument should be a number.");
            }
            if(Integer.valueOf(args[2]) == null)
            {
                source.sendMessage(ChatColor.RED + "The third argument should be a number.");
            } else
            {
                World world = Bukkit.getWorld(args[3]);
                int x = Integer.valueOf(args[0]);
                int y = Integer.valueOf(args[1]);
                int z = Integer.valueOf(args[2]);
                world.setSpawnLocation(x, y, z);
                source.sendMessage("The spawn of " + world.getName() + " has been set to (" + x + " " + y + " " + z + " " + ").");
            }
        } else
        {
            throw new NotEnoughArgumentsException();
        }
    }
 
    @Override
    public void run(Server server, Person person, Command command, String label, String[] args) throws Exception
    {
        if(args.length == 3)
        {
            if(Integer.valueOf(args[0]) != null && Integer.valueOf(args[1]) != null && Integer.valueOf(args[2]) != null)
            {
                World world = person.getWorld();
                int x = Integer.valueOf(args[0]);
                int y = Integer.valueOf(args[1]);
                int z = Integer.valueOf(args[2]);
                world.setSpawnLocation(x, y, z);
                person.sendMessage("The spawn of " + world.getName() + " has been set to (" + x + " " + y + " " + z + " " + ").");
            } else
            {
                person.getWorld().setSpawnLocation(person.getBlockX(), person.getBlockY(), person.getBlockZ());
                person.sendMessage("The spawn of " + person.getWorld().getName() + " has been set to (" + person.getBlockX() + person.getBlockY() + person.getBlockZ() + ").");
            }
        }
        if(args.length == 4)
        {
            if(Integer.valueOf(args[0]) != null && Integer.valueOf(args[1]) != null && Integer.valueOf(args[2]) != null)
            {
                World world = Bukkit.getWorld(args[3]);
                int x = Integer.valueOf(args[0]);
                int y = Integer.valueOf(args[1]);
                int z = Integer.valueOf(args[2]);
                world.setSpawnLocation(x, y, z);
                person.sendMessage("The spawn of " + world.getName() + " has been set to (" + x + " " + y + " " + z + " " + ").");
            } else
            {
                person.getWorld().setSpawnLocation(person.getBlockX(), person.getBlockY(), person.getBlockZ());
                person.sendMessage("The spawn of " + person.getWorld().getName() + " has been set to (" + person.getBlockX() + person.getBlockY() + person.getBlockZ() + ").");
            }
        } else
        {
            person.getWorld().setSpawnLocation(person.getBlockX(), person.getBlockY(), person.getBlockZ());
            person.sendMessage("The spawn of " + person.getWorld().getName() + " has been set to (" + person.getBlockX() + " " + person.getBlockY() + " " + person.getBlockZ()
                    + ").");
        }
    }
}

And here is the code for /spawn

Code:java

package me.jts3304.masterplugin.commands;
 
import me.jts3304.masterplugin.utils.CommandSource;
import me.jts3304.masterplugin.utils.Person;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.World;
import org.bukkit.command.Command;
 
public class Commandspawn extends MasterPluginCommand
{
    public Commandspawn()
    {
        super("spawn");
    }
 
    @Override
    public void run(Server server, CommandSource source, Command command, String label, String[] args) throws Exception
    {
        if(args.length == 2)
        {
            if(args[1] == "~")
            {
                Person person = Person.getPerson(args[0]);
                World world = person.getWorld();
                person.teleport(world.getSpawnLocation());
                source.sendMessage("Teleporting " + person.getName() + " to the spawn of the world they are in...");
            } else
            {
                // World
                World world = Bukkit.getWorld(args[1]);
                //
                // Person
                Person person = Person.getPerson(args[0]);
                person.teleport(world.getSpawnLocation());
                source.sendMessage("Teleporting " + person.getName() + " to " + world.getName() + "'s spawn...");
            }
        } else
        {
            throw new NotEnoughArgumentsException();
        }
    }
 
    @Override
    public void run(Server server, Person person, Command command, String label, String[] args)
    {
        if(person.hasPermission("masterplugin.spawn.others"))
        {
            if(args.length == 1)
            {
                Person target = Person.getPerson(args[0]);
                World world = person.getWorld();
                target.teleport(world.getSpawnLocation());
                person.sendMessage(ChatColor.GREEN + "Teleporting " +  target.getName() + " to this world's spawn...");
            }
            if(args.length == 2)
            {
                if(args[1] == "~")
                {
                    Person target = Person.getPerson(args[0]);
                    World world = person.getWorld();
                    target.teleport(world.getSpawnLocation());
                    person.sendMessage("Teleporting " + person.getName() + " to the spawn of the world they are in...");
                } else
                {
                    // World
                    World world = Bukkit.getWorld(args[1]);
                    //
                    // Person
                    Person target = Person.getPerson(args[0]);
                    target.teleport(world.getSpawnLocation());
                    person.sendMessage("Teleporting " + person.getName() + " to " + world.getName() + "'s spawn...");
                }
            }
        } else
        {
            person.denyAccess();
        }
        if(args.length != 1 && args.length != 2)
        {
            person.teleport(person.getWorld().getSpawnLocation());
            person.sendMessage(ChatColor.GREEN + "Teleportig to this world's spawn...");
        }
 
    }
}

Here is my plugin.yml
name: MasterPlugin
version: 0.2.05
main: me.jts3304.masterplugin.MasterPlugin
description: |
Basic plugin for the Brotherhood public server.
author: jts3304
commands:
spawn:
description: Teleport to the world's spawn.
usage: /<command>
setspawn:
description: Set the spawn of the world.
usage: /<command> [x] [y] [z] [world]
permissions:
masterplugin.*:
description: Gives access to all MasterPlugin commands.

default: false

/setspawn works fine, but when I type /spawn nothing happens. I checked my code but I didn't see anything that would affect the command. Could someone tell me what I'm doing wrong. It registers the command and everything. I checked the log, it said I typed the command but it didn't say anything in the chat or the log.