The Netty project is an effort to provide an asynchronous, event-driven network application framework and tools for rapid development of maintainable, high-performance, high-scalability protocol servers and clients. In other words, Netty is a NIO client server framework that enables quick and easy development of network applications such as protocol servers and clients. It simplifies and streamlines network programming such as TCP and UDP socket servers.
JCatapult is a development platform written in Java. Built for modularization, JCatapult allows developers to build modules such as a blog, content-management system, wiki, or any other reusable set of features and use them across multiple applications. Built on top of open source technologies, JCatapult is a robust and scalable platform. However, it is also agile and lightweight because it uses a convention over configuration approach.
The BitNami DjangoStack is an all-in-one installer that greatly simplifies the installation of Django and its runtime dependencies. It includes ready-to-run versions of Python, Django, MySQL, and Apache. It supports Linux, Windows, and OS X, so you can share the same Django environment on multiple platforms.
The Spiffy Framework is a collection of well-tested and often used helper methods and utility classes. Such methods and classes solve existing and recurring practical problems, and remedy annoying features of the Java language or its frameworks. The value of this framework is not only the code, but also the ideas for solutions to the problems. The goals are to collect and centralize "utility abstractions", and to serve as a repository of knowledge/smart ideas for programmers to learn.
Amiba is a Gene Expression Programming (GEP) framework for Java. GEP is, like genetic algorithms, a branch of evolutionary computing. The framework separates the process of evolution from the process of interpretation of the chromosome, allowing the use of various schemes. For example, graphs may be used as terminals and graph operations as operators in the chromosome instead of the usual double precision numbers. It implements mutation, transposition, and recombination. Options and rates are easily configured through an XML file. A mechanism to load fitness cases in bulk is also provided.
WSO2 WSF/Spring provides an amazingly simple "Code First" approach to create Web services for the Spring user. This framework integrates the Apache Axis2 Web services engine into Spring. Thus, it provides all the power and versatility of the Axis2 engine to the Spring user. With just a few entries in the application context, this lets Spring users enjoy the benefits of Service Oriented Architecture using Web services in their applications.
Reverspring is a Java library that allows you to create Spring IoC XML files from POJO at runtime. CoI stands for Control of Inversion: Reverspring just inverts the inversion of control mechanism of Spring Framework, allowing you to (re)write Spring descriptors starting from your Java objects. With Reverspring, you can write process descriptors on XML files without reinventing a new DTD or XML schema, but just using the well known Spring IoC syntax.
GreenMail is a suite of email servers for testing purposes and sandbox development. It supports SMTP, POP3, and IMAP (including SSL) and can be embedded into any Java application or unit test. The GreenMail Service (SAR) extension runs as a JBoss embedded developer mail server sandbox, manageable via JMX.
IT Mill Toolkit is a server-side RIA (Rich Internet Application) library that provides a versatile set of AJAX widgets for Java programmers. Applications are programmed in Java and executed server-side. At the client-side (i.e. in the browser), enhanced GWT widgets are used for presentation.