A this time, there is no way to handle servlet pathinfo as part of JSF mechanism.
This means, that saving state/parameters context for a JSF view is not possible.
Most public website that need to be search engine friendly need this feature.
See an example of possible solutions on :
There might be some concern doing that because the current (2.5) servlet spec
does not offer advanced servlet URL mapping such as regular expression matching.
So first step (how do we do an RFE on servlet spec?) might be to be able to map
a regular expression as valid url-pattern.