Comet Engine - Newbie Question

I'm trying to set up a Comet driven application as described in Jean-Francois Arcand's blogs.

I have installed JSAS9 which I presume is now the official version of Glassfish but when I start the chat example I get an error that

com/sun/enterprise/web/connector/grizzly/comet/CometHandler

can't be found.

Is Comet a separate download or do I need to update the classpath or ...?

Thanks

[426 byte] By [gseela] at [2007-11-27 4:58:44]