Packages Contains classes which deal with loading or saving data, or which contain data elements while the application is running.
org.jessential.experiment Classes which didn't quite become functional but are still useful for archival purposes, or experimental classes which show how things work.
org.jessential.gui Main GUI classes and assorted odds and ends that don't fit anywhere else are located here.
org.jessential.tree Contains extensions and custom classes pertaining to the javax.swing.JTree and associated widgets.
org.jessential.xml JAXB bindings for XML data used in the XML test data source, configuration file, and data file.