MDIFramework provides a ready-to-use architecture to ease the creation MDI-style applications in Java. It takes care of the overall architecture of the main window of the application, with a tabbed architecture, the presence of an HTML printable message area, and so on. It provides a generic API to manage lengthy actions, keeping the interface responsive, and taking care that actions are performed one at a time, without having to bother about it. It can add metadata to already opened files. It manages loading and unloading of external plugins at runtime.
Griffon is dekstop application development platform for the JVM. Inspired by Grails, it leverages the Groovy language and concepts like convention over configuration. The Swing toolkit is the default UI toolkit of choice however others may be used, principaly SWT and JavaFX. Developers may use a combination of the Groovy and Java as well as other JVM languages such as Scala, Clojure, Mirah, and Jython. It encourages the use of the MVC pattern and follows in the spirit of the Swing Application Framework (JSR 296) by defining a simple yet powerful application life cycle and event publishing mechanism.