Using Port 443 w/ Tomcat

When using Apache there is a way to set SSL on port 443 even if apache isn't running as root. Does anyone know if there is a way to set this in tomcat? I *think* what happens in the apache case is that it starts up as root sets the port number then switches the user to nobody (or whatever user is set to run apache). I'd *love* to be able to pull the same trick off in tomcat.