Hello "archimedes ancient"-
Welcome to JavaRanch.
On your way in you may have missed that we have a
policy on screen names here at JavaRanch. Basically, it must consist of a first name, a space, and a last name, and not be obviously fictitious. Since yours does not conform with it, please take a moment to change it, which you can do
right here.
As to your question, that "catch-all" content type is "application/octet-stream". You can't stream content from within a JSP page, though - you'll need to do this in a
servlet.