Commons Configuration provides a generic configuration interface which enables
 an application to read configuration data from a variety of sources:
  - Properties files
  - XML documents
  - Windows INI files
  - Property list files (.plist)
  - JNDI
  - JDBC Datasource
  - System properties
  - Applet parameters
  - Servlet parameters
 Additional sources of configuration parameters can be created by using custom
 configuration objects.