Free Downloads: Java software and Documentation. Check packages for license and distribution information. JRVN Our toolkit for creating complex visual displays of relationally modeled information from databases. JAX-SR 0.1 Java Annotations for XML Schema Restrictions. Add schema restrictions like MaxLength, Pattern or MaxOccurs to JAX-WS / JAXB XML Schema generation. Margin Viz Dynamic, configurable selector for marginal distributions over complex relational dataset. Not a great example, but it does work with basic data.