H2GIS
· H2GIS is a spatial extension of the H2 database engine in the spirit of PostGIS. It adds support for
the Open Geospatial Consortium (OGC) Simple Features for SQL (SFSQL) functions.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window h2gis-parent-2.2.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
