Jettison 1.3.1 has just been released, please the Download page for more information about the latest fixes.
The two updates which would be of interest to CXF users (or those who rely on other stacks that ship the providers wrapping Jettison) are to do with making it possible to create formatted JSON outputs and making sure that the ignorable (empty) text content (reported by JAXB when processing the mixed content data) is blocked. The latter update, among other things, will make the WADL JSON representations look nicer given that they are produced from the wrapped XML payload.
Few other improvements made it into this release too, particularly those JIRAs which had the patches attached to them have been resolved.
I'd like to encourage the Jettison community to continue providing patches and as far as I'm concerned I can say that the patches will be eventually applied and the fixes will make it into the the future Jettison releases.
Happy New Year !