I've started packaging a _subset_ of jackrabbit. I'll work on providing only a
small "libjackrabbit-java" package and, as a first step, I'll only build
jackrabbit-webdav module, so we can package wagon-webdav and enable WebDav
support in Maven.
My current work is here :
http://anonscm.debian.org/gitweb/?p=pkg-java/jackrabbit.git
For full reference of issues with JCR API, you can see #573482.