Hi Tony,
It depends upon how much content
servlet pushed to the response writer (or output stream). The web container will buffer some content and throw that content away if the servlet forwards to a ReqDisp or does a redirect.
However, if the servlet pushed more content than the buffer can hold, then the web container is required to commit that buffer (and the response header) to the browser. After that has happened, any attempt to forward or redirect will fail.
Regards,
Bryan
[ July 24, 2008: Message edited by: Bryan Basham ]