I just released a new version of jdal-swing.
I'ts a preview version for 1.3.x and include a lot of improvements on Swing components including a new swing custom namespace.
for now, I wrote the spanish documentation only http://www.joseluismartin.info/jdal (I'm working on translation), but the library sample is a working swing application and i hope that is not too hard to figure how it works.
You can dowload from sourceforge https://sourceforge.net/projects/jdal/files/1.3.1/ or use maven to get 1.3-SNAPSHOT version from sonatype public repository https://oss.sonatype.org/content/groups/public/
Contributions are welcome.