Evaluation of highscore implementation methods

[cookie]

Hello,
I want to implement a highscore list (simple XML file with players and their scores) without using a database or a server side scripting language like php. There are several possible ways to implement a remote highscore list:

- Pure Java sockets
- RMI
- Apache Commons Net

However, I don't know which one I should prefer. I have read, that RMI works well in local networks, but often doesn't work very well over the internet. It would be nice if someone could briefly evaluate those options.

[Shnagenburg]

Do you have your own server to store these on? It shouldn't be too hard to write a java program that listens for score objects and writes them to a "high scores" file. You'll want to be sure to keep a read-only version of the "high scores" file so that players can quickly get the list and not block on other players who are writing to the file.