Jeremi is groupware software for realtime document sharing. It supports distributed work on different documents or files by different people or project groups. It offers an always-up-to-date view of the project and its files and coordinates the dependency of the actual file status and access to those files. Jeremi is written entirely in Java.
Xfiles is an interactive utility for comparing and merging one file tree with another over a network. It supports freeform work on several machines (no need to keep track of what files are changed on which machine). Xfiles can also be used as a cross-validating disk<->disk backup strategy.
Sirid is a Web-based tool for managing software projects. The main features of Sirid are assigning tasks between the personnel, reporting bugs, managing specifications, and recording feature requests. The program also sends notifications of new bugs and tasks to people who have been set responsible for them, and notifies the responsible people when the deadline of some bug or task is approaching. It features graphical presentations for tracking the progress of your project. Sirid keeps you informed of the status of each of your projects, and allows you to take action if difficulties arise.
LibreSource is a versatile collaborative platform and software forge. It is adapted to the collaborative software development, groupware, community leading, e-archiving and Web publishing. On a single server, LibreSource can host several projects, several groups of users, and grant fine-grained access to the resources. Based on Java/J2EE technology, it is a modular Web server that users can customize online by combining resources and rights: wiki pages, forum, trackers, synchronizer, subversion, files, download areas, a dropbox, forms, etc.