I2P is an anonymous network, exposing a simple layer that applications can use to anonymously and securely send messages to each other. The network itself is strictly message based (ala IP), but there is a library available to allow reliable streaming communication on top of it (ala TCP). All communication is end to end encrypted (in total there are four layers of encryption used when sending a message), and even the end points ("destinations") are cryptographic identifiers (essentially a pair of public keys)....

Lilith is a logging and access event viewer for the Logback logging framework.

It has features comparable to Chainsaw, a logging event viewer for log4j. This means that it can receive logging events from remote applications using Logback as their logging backend....

JMockit allows developers to write unit and integration tests without the testability issues typically found with other mocking APIs. Tests can easily be written that will mock final classes, static methods, constructors, and so on. There are no limitations....

JEXL is a library intended to facilitate the implementation of dynamic and scripting features in applications and frameworks written in Java.
JEXL implements an Expression Language based on some extensions to the JSTL Expression Language supporting most of the constructs seen in shell-script or ECMAScript. ...

Fura is a self-contained grid middleware that allows the grid enablement and distribution of applications on heterogeneous computational resources. Fura features a web-based GUI, wizard-guided installation and configuration, and Web Services compliance. Fura's component based plug-in architecture allows grid services to be extended or replaced, and new services can be developed reusing existing components....

A living example of how to use Spring Security and JSF. A playground for interested OSS developers.

Apache Tuscany simplifies the task of developing SOA solutions by providing a comprehensive infrastructure for SOA development and management that is based on Service Component Architecture (SCA) standard. With SCA as it's foundation, Tuscany offers solution developers the following advantages:...

Painless OSGi framework startup and provisioning.,

wingS is a servlet development framework for Web applications. It features Swing-like components and utilizes Swing models, Swing events, and a very similar API yet featuring transparent AJAX. A special LayoutManager allows you to place components using designer provided HTML templates. The HTML code generation of the components supports PLAF (Pluggable Look and Feel), so it is possible to create a different output, like plain HTML for barrier-free user interfaces....

PokeNet livre é um fã-fabricados MMORPG que está actualmente a ser desenvolvido e é concebida com Java, Apache Mina e LWJGL / Vivaço. Este jogo irá trazer uma experiência semelhante à do original Pokemon jogos, acrescentando recursos novos, tais como batalhas on-line e comércio....