JSF

Sadly, the "server-side driven" JavaServer Faces (JSF) web GUI technology for the former Enterprise Java (Java EE) did not get the traction it deserved. For web applications that did not require handling of huge traffic loads it really did have some advantages.

The Jakarta EE project supports the same technology now as Jakarta Faces, and PrimeFaces still supports Jakarta Faces.

From https://en.wikipedia.org/wiki/OmniFaces:

PrimeFaces is a 3rd-party toolkit for  Jakarta Faces – formerly  JavaServer Faces (JSF) – with rich interactive web components and support utilities. This commercial toolkit is available free (but support and early access to fixes requires a paid licence).

Please visit now instead Jakarta Faces

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Dr Darren of Webel was a long-term user and fan of this technology!