Toolkit for working with and mapping geospatial data
Tool support for the Z formal notation
An object relational-mapping (ORM) library for Java
Converts cobol copybooks to Xml/Java objects
JaxoDraw: Feynman Diagrams made easy!
Spectroscopy Viewer
Java-based nuclear physics data acquisition.
A collection of ACO algorithms for the data mining classification task
Java source code for image processing books by Burger & Burge
Modeling and Simulation made NiCE!
NMEA libary for java (protocol of GPS devices)
Open Source Integrated Clinical Environment
Java (6&7) Code Coverage Plugin for NetBeans, based on JaCoCo
Javafastcomplex has both mutable and immutable complex numbers
A universal chemistry database system, using Java and any rdbms
openSCADA® is an open source SCADA system written in JAVA
Complete ROV Control Suite
As of 2012-12-18, this project may now be found at Google Code.
Experiment automation