Well, first off, is this a standalone
Java app or a web app? Not that it really matters, since if you use
JDBC to access data, either way you need a URL, but MS-Access and the JDBC-ODBC bridge are not suitable for multi-user applications such as web apps.
You should be able to use a URL that looks something like this:
jdbc

dbc

river={Microsoft Access Driver (*.mdb)};DBQ=C:/data/mydatabase.MDB