The Java Interaction Separation Toolkit (JIST) was developed with the intention of having a lightweight, cross-platform and support for a declarative UI. By using the WORA aspect of Java most of the desktop platforms are covered. It features XML support for describing user interfaces in a more natural way than the classic wall of text associated with the native code-behind approach.

The following is a 10 minute demo video showing how an application can be developed, and how the interaction between the xml parsing and the java code works