Trying to Load/Delete World, Console Error

In my main server directory, I have a world folder called "Game". To load the world I use :

Code:java

public static void loadMap(){
        WorldCreator wc = new WorldCreator("Game");
        World w = Bukkit.createWorld(wc);
    }

Then to delete the world right after I use :

Code:java

public static boolean deleteDirectory(File path) {
        if( path.exists() ) {
            File files[] = path.listFiles();
            for(int i=0; i<files.length; i++) {
                if(files[i].isDirectory()) {
            deleteDirectory(files[i]);
            }
                else {
                    files[i].delete();
                } //end else
            }
            }
        return( path.delete() );
        }
 
    public static void resetMap(){
        for(Chunk c : Bukkit.getWorld("Game").getLoadedChunks()) {
 
            c.unload(false, false);
 
            }
        if (Bukkit.unloadWorld("Game", true)) {
            System.out.println("Unloaded world");
            } else {
            System.err.println("Couldn't unload world");
            }
        World worldtodelete = Bukkit.getWorld("Game");
        File folder = worldtodelete.getWorldFolder();
        deleteDirectory(folder); //delete world
    }[/i][/i][/i]

In the console I get an error when doing a command that sets off loadMap then resetMap; The error is:

Code:

[21:51:05] [Server thread/INFO]: Unloaded world
[21:51:05] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'resetmaptest' in plugin GemWars v1.0
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:703) ~[craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:955) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:817) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
Caused by: java.lang.NullPointerException
    at com.minehit.Game.resetMap(Game.java:108) ~[?:?]
    at com.minehit.ResetMapTestCommand.onCommand(ResetMapTestCommand.java:19) ~[?:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit-1.7.9-R0.1-20140418.182938-15.jar:git-Bukkit-1.7.2-R0.3-56-g3779cff-b3072jnks]
    ... 13 more
[22:05:19] [Server thread/INFO]: CONSOLE: Stopping the server..

Line 108 is: World worldtodelete = Bukkit.getWorld("Game");

 

I'd guess that your problem is that the world is null since you just unloaded it, so you can't Bukkit.getWorld() it.