> I have used httrack to capture a site for offline
> viewing, however, the interactive activity will not
> show if I am offline.
Make sure you use 
options -> link -> Attempt to detect all
options -> link -> get non-html files

A mirror is not a copy, it is a collection of files, retrieved from references
in the html, css, js (no full support.)

The Java application (now on your machine) may try to open more content which
won't exist (on your machine,) and thus won't work. Same reason videos don't
play in a mirror.