The following works in a servlet:

SiteUser currentUser = (SiteUser)Component.getInstance("currentUser", ScopeType.SESSION, false);

but this doesn't:

Log log = (Log)Component.getInstance("log", false);

and neither does this:

Log log = (Log)Component.getInstance("log", true);

Is this possible? I assuming it's because the name is wrong, but the variations I've tried haven't helped. I've also tried specifying the APPLICATION SCOPE.