Java 2D scene graph library for GUI

Question

I'm looking for a 2D scene graph library for building GUI applications. It should be fast, using Java2D and be compatible with Swing (embeddable in a Swing app and also display Swing components). Support for animations is a plus.

• Do you have any experience with some of the libraries?
• Are there any libraries that I have missed?
• I have to add that I'm not totally offended by a Scala library.

Project Scene Graph

• seems reasonably fast
• only GPL (no LGPL)
• supports animations
• abandoned 2 years ago
• as former part of JavaFX it's a Sun product

G

• dunno whether it's fast
• LGPL
• no animations
• last version Dec 09

Piccolo2D

• for "zoomable user interfaces"
• looks like an academic project
• google code project with high activity
• BSD licence
• dunno if it's fast
• dunno if it does animations

Pulpcore

• is a game library
• is targeted at applet deployment (using it as application is hacky)
• very fast
• supports animations
• no development for 2-3 years
• probably no Swing support at all

jTem

• part of a bigger project (at first glance)
• freeBSD license
• no animation support
• looks very minimal

Answer 1

Amino is another one created by Joshua Marinacci. It's very new, but has some interesting features such as CSS skinning, 2D or 3D backends. I am also very much intrigued about its use of an event bus rather than listeners, as that is quite in line with the Scala+Actor stuff I am working on at the moment.

That said, I haven't played with it (yet), so I don't know how good it is.

http://leonardosketch.org/amino