Hawron is a GUI tool for the Apache XML Web Development Framework Cocoon and pure Java. It mainly supports the "Offline Generation Part" of Cocoon, but an embedded Servlet Container (Jetty) for Cocoon's default environment is included. Hawron tries to help Cocoon users with some extra features like publishing offline generated files (ftp, sftp) and editing content (embedded OpenOffice).
mod_auth_useragent2 is an Apache module that can be used to limit access to documents by means of the User-Agent. As an authentication method, this is really unsafe because it is easy to change the User-Agent in most browsers, but it could be used to prevent stupid bots and spiders from accessing your Web sites.
ApacheDS is an LDAP and X.500 experimentation platform. Its backend subsystem and frontend are separable and independently embeddable. It provides a server side JNDI LDAP provider that directly interacts with the backend storage. It is powered by SEDA (Staged Event-Driven Architecture), which can handle large amounts of concurrency.