Federation Manager deploys as a single web archive (WAR) making it easy to install, integrate and customize. If there is a need to customize Federation Manager, you can go to the staging directory, make changes to the relevant files, archive the WAR again, and redeploy the new WAR file to your web container. The default staging directory is /var/opt/SUNWam/fm/war_staging. See Detailing the fmwar Syntax for information on regenerating a WAR.
In addition to the customizations described in this chapter, 8 Authentication contains a section on customizing the Authentication component of Federation Manager. For information, see Customizing Authentication.