Do any servlet engines support servlet chaining?
Alex Chaffee Servlet Chaining was a feature of several early servlet engines, but has been removed from the spec. There has been some talk of officially adding it, but for now, servlets must explicitly "chain" by using RequestDispatcher.
I believe JRun and Java Web Server both support servlet chaining (in non-standard ways, naturally). If you know of any others that do, please submit a feedback.