Hey,
I know this is a bit late but I just found the post today. You could seralise the java object in the servlet and then deseralise it on the client however that can be quite limiting. A nicer way would be to send the scores back to the client as xml or json. An XML parser comes with j2me or you can use one of the many json parsers available such as
https://launchpad.net/j2me-json
The basic idea is to have you client make a request to the servlet and have your servlet return the xml or json formatted response. Set your array in the request attribute and forward the servlet to a JSP. Then use JSTL to render the JSP.
Another alternative... albiet more complex solution is the apache thrief project. If you are planning an iPhone, android, j2me, javascript version of you app it would be very well suited to fit your needs.
http://thrift.apache.org/