docs: public Set<OWLClass> allSuperClassesOf(OWLClass owlClass)
      {
          Set<OWLClass> superOWLClasses = new HashSet<OWLClass>();
          if (null != reasonerForMergedOntology)
          {
              Iterator<Node<OWLClass>> iteratorNodeOWLClass = reasonerForMergedOntology.getSuperClasses(owlClass, false).iterator();
              while (iteratorNodeOWLClass.hasNext())
              {
                  Iterator<OWLClass> iteratorOWLClass = iteratorNodeOWLClass.next().iterator();
                  while (iteratorOWLClass.hasNext())
                  {
                      superOWLClasses.add(iteratorOWLClass.next());
                  }
              }
          }
          return superOWLClasses;
      }