After taking over a coworker\'s project I noticed he was using \"org.gjt.mm.mysql.Driver\" as the jdbc driver for MySQL 5 instead of the more common one \"com.mysql.jdbc.Dri
The MySQL JDBC driver was initially developed by a hobbyist. It's later donated to MySQL where they renamed the package/classname. The old classname is kept for backwards compatibility reasons, but if you can, you should update it to com.mysql.jdbc.Driver as soon as possible.