Groovy resources
All core code for Waterloo graphics is written in pure Java and all core classes are Plain Old Java Objects (POJOs). They have been compiled to produce Java byte-code that is backwards compatible to Java 1.5.The waterlooPlot.jar file provides some optional code written in Groovy to support a Groovy API. This code can be omitted when using Waterloo in Java-only applications (see here for details).