Jakarta previously hosted Cactus, a simple test framework for unit testing server-side java code.

In August 2011, Cactus was retired due to a lack of development community.

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

Cactus users are encouraged to switch to other techniques for testing.