Nuxeo is still using JSF 1.2, and using an old version of facelets.
An upgrade to JSF 2 was attempted when working on CDI integration, maybe upgrading just the JSF stack would be good as a first step (but Seam may be impacted too)
NXP-8977-cdi-sample can be taken as a reference. Some feature may need to be disabled in the mean time, just to check if upgrading is interesting in terms of performance (for instance, jboss-seam-pdf still relies on JSF 1.2 so related features should be disabled)
|Disable some features while upgrading to JSF2||Resolved|