An O'Reilly blog mentions some cool new features in Struts 1.2 among which "wildcard mappings".

Woah, I'm so impressed... Yawn... looks like a poor-man's Cocoon sitemap. There was already struts-flow that brought Cocoon's flowscript to Struts, and now wildcard matching (which, let's recall it, is just the default matcher in Cocoon).

People, why don't you directly use Cocoon, rather than waiting for Struts to copy some of its basic features?