Jakarta previously hosted Slide, a content repository which could serve as a basis for a content management system as well as other purposes. Among its features was full WebDAV support.

In Novermber 2007, Slide was retired due to a lack of development community.

Read-only Resource Link(s)
Website jakarta.apache.org/slide
Mailing List Archives dev | user
Issue Tracker Bugzilla
SVN svn.apache.org/repos/asf/jakarta/slide
Downloads archive.apache.org/dist/jakarta/slide/ | KEYS

If you are looking for a WebDAV client or a server-side Content Repository, please consider the Apache Jackrabbit project as an alternative.