Solved Command write to IntegerList

Hello everyone,

I am trying to make something that allows me to type in a command, in this case: "add list <integer>", and then take the integer, add it to the IntegerList in the configuration file and save it.
I know it is better to write to let's say HashMaps instead of directly to the config, but this is just for testing purposes.

Code:java

if (arg[0].equalsIgnoreCase("add"))
{
if (arg.length > 1)
{
if(arg[1].equalsIgnoreCase("list"))
{
if (arg.length > 2)
{
try
{
this.getConfig().getIntegerList("List").add(Integer.parseInt(arg[2]));
player.sendMessage(PrefixS() + ChatColor.RED + "Block ID: '" + Integer.parseInt(arg[2]) + "' added to the list.");
this.saveConfig();
this.reloadConfig();
}
catch (NumberFormatException ex)
{
player.sendMessage(PrefixS() + ChatColor.RED + "The value you specified was incorrect.");
}
return true;
}
else
{
player.sendMessage(ChatColor.RED + "Too few arguments.");
return true;
}
}
else
{
player.sendMessage(ChatColor.RED + "You do not have permission to use this command, or this command does not exist.");
}
else
{
player.sendMessage(ChatColor.RED + "You do not have permission to use this command, or this command does not exist.");
return true;
}
}
else
{
player.sendMessage(ChatColor.RED + "Too few arguments.");
return true;
}
}

Thanks in advance - been stuck on this issue for quite a few hours and people over at #BukkitDev won't respond.
Unscrewed

Edit: [syntax~java] Unformatted my code, hope you can still read it.
Edit 2: There are no errors, it displays the message: "Block ID: 'x' added to the list" too.

 

Code:java

List<Integer> list = this.getConfig().getIntegerList("List");
list.add(Integer.parseInt(arg[2]));
this.getConfig().set("List", list);
this.saveConfig();

getIntegerList("path") returns a copy of the config's list (as do all get*List methods do)

 

Oh, wow. I did not know that.
Thanks a lot!