All config files to be re-parsed. For example, you may need to do this after installing a new skin or custom view, listener, SDL tag, or other plug-in.
Data (e.g. user profile information and group membership) cached from external directory servers to be flushed. The user's next access will refetch this information from the directory server. (Note: this cache is normally refreshed every five minutes)
Java Garbage Collection, to release any memory being used by unreferenced objects.