Java interfaces derived from specifications of International Organization for Standardization (ISO) and Open Geospatial Consortium (OGC). Interfaces in the org.opengis.geoapi modules were created from UML diagrams found in the ISO and OGC specifications and are part of the GeoAPI standard. The org.opengis.geoapi.pending module contains work in progress, not yet scheduled for standardization. The org.opengis.conformance module allow implementors to test their product. Other modules are examples in public domain.
Modules 
Module Description
org.opengis.geoapi
Java interfaces derived from specifications of International Organization for Standardization (ISO) and Open Geospatial Consortium (OGC).