The jscheme webapp of this Jetty server uses the mysql driver webapps/jscheme/WEB-INF/lib/mysql-connector-java-2.0.14-bin.jar which is covered under the GPL licence. To conform with that license, the Jscheme webapp of this Jetty server is offered under the GPL licence. You can use this driver commercially if you obtain a commercial licence from mysql, details at: http:///