KIYUT Software - A vendor of Java applications including Sketsa SVG Graphics Editor and Ekspos Image Viewer, a freeware Java image viewer program. - http://www.kiyut.com/
jPicEdt - A tool which allows you to draw pictures or graphs using LaTeX's own picture environment. [Open Source, GPL] - http://jpicedt.sourceforge.net/
JChemPaint - Java program to create 2D chemical diagrams. [Open Source, LGPL] - http://almost.cubic.uni-koeln.de/cdk/jcp
Meson Platform - Platform for the delivery of interactive 2D and 3D content within a lightweight Java applet. - http://www.kaon.com/software/swmeson.html
Raja - Ray-tracing application. [Open Source, GPL/LGPL] - http://raja.sourceforge.net/
DrawSWF - A drawing program to generate flash animations. [Open source, GPL] - http://drawswf.sourceforge.net/
Nonosee - An image viewer written in Java. You can customize it, add library, create filter, add a language. - http://nonosee.pere-nono.com/anglais/