service(Request req, Response res) Call the service method, and notify all listeners
exception: Exception - if an error happens during handling ofthe request.
Call the service method, and notify all listeners
exception: Exception - if an error happens during handling ofthe request. Common errors are:
IOException if an input/output error occurs and we areprocessing an included servlet (otherwise it is swallowed andhandled by the top level error handler mechanism)
ServletException if a servlet throws an exception andwe are processing an included servlet (otherwise it is swallowedand handled by the top level error handler mechanism)
Tomcat should be able to handle and log any other exception ( includingruntime exceptions )