From: markt
The class name of the factory to use to create resources of type
+ javax.sql.DataSource. If not specified the default of
+ org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory is used
+ which is a package renamed (to avoid conflictions) copy of
+ Apache Commons DBCP.
The class name of the factory to use to create resources of type
+ javax.mail.Session. If not specified the default of
+ org.apache.naming.factory.MailSessionFactory is used.
Provides a default value for the jvmRoute attribute of the
Engine element. It does not override the value