UPNPLib is a Java library for the UPNP protocol. It features an easy programming interface for developers as well as an HTTP-based console for end users or developers, so that they can control the UPNP devices residing on their network. It implements all UPNP features like discovery and eventing. The library also provides integration with JMX management (by exposing UPNP devices as MBeans) and RMI through transparent NAT/firewall traversal.
Groovy is an agile, dynamic language for the JVM which combines many features from languages like Python, Ruby, and Smalltalk and makes them available to Java developers using a Java-like syntax. It is designed to help get things done on the Java platform in a quicker, more concise, and fun way. It can be used as an alternative compiler to javac to generate standard Java bytecode to be used by any Java project or it can be used dynamically as an alternative language, such as for scripting Java objects, templating, or writing unit test cases.
Jestr is an extensible framework for converting arbitrary Java objects into strings for display and logging. The style of string conversion is defined in a properties file, and can be adjusted at runtime either application-wide or just for specific classes, class hierarchies, and package hierarchies.
The XView4Struts project is an extension to the Jakarta Struts Framework. Its main purpose is to eliminate the need to use tag libraries and JSP pages. The view is pure HTML, and interaction between the view and the model is transparent to the developer. This approach offers faster development, better division of work, a more pure MVC design pattern, reusable view components, and easier maintenance.