If you're building a new Java desktop application, JavaFX is the best choice for most general-purpose apps. However, Swing remains a viable option, especially when combined with the IntelliJ platform.

Qt Jambi is a new and noteworthy alternative to Swing and Java 2D ... for building applications with dockable components. Among other things, you can use this feature to create desktop ...

A new open source tool dubbed Quark promises rapid creation of desktop applications with native ... of software development platforms including Java and .NET and programming languages including ...