* List the currently deployed web applications, as well as the sessions that are currently active for those web apps.
* Reload an existing web application, to reflect changes in the contents of /WEB-INF/classes or /WEB-INF/lib.
* List the OS and JVM property values.
* List the available security roles defined in the user database.
* Remove an installed web application.
* Start a stopped application (thus making it available again).
* Stop an existing application (so that it becomes unavailable), but do not undeploy it.
* Undeploy a deployed web application and delete its document base directory.