A method, system, and computer program product are disclosed for creating an OWL ontology from a Java source code, wherein the Java source code includes a plurality of Java classes. Each of these Java classes includes one or more Java members and one or more Java objects. The Java objects are used to instantiate each of the Java classes. An OWL class is created for each of the Java classes, and an OWL concept is created for each of the Java members. Further, an OWL instance is created for each of the Java objects. Each of the OWL classes, the OWL concepts, and the OWL instances are assigned data type properties and object properties. Subsequently, each of the OWL classes and relations between them, each of the OWL concepts, and each of the OWL instances are included to form the OWL ontology.