NLog is a .NET logging library designed with simplicity and flexibility in mind. With NLog you can process diagnostic messages emitted from any .NET language, augment them with contextual information, format them according to your preference, and send them to one or more targets. The API (application programming interface) is similar to log4net, and the configuration is very simple. NLog uses a routing table while log4net uses a logger hierarchy with attachable ppenders. This makes NLog's configuration very easy to read and maintain.
The Platonos Projects are a group of sub projects aimed to provide Java developers with a stand-alone plugin engine as well as a pluggable Swing application framework similar to other RCP (Rich Client Platforms) available. The goal is to have an out-of-the-box runnable Swing application with the more common pieces applications contain, such as preferences, help, file I/O choosers, configuration, and more all via plugins which can be left out if not needed. Building upon the shell is very easy by simply adding plugins that provide extended behavior for existing plugins, or adding new plugins that will then be extended by other plugins.