OWLOntologyManager mgr = OWLManager.createOWLOntologyManager();
OWLDataFactory factory = mgr.getOWLDataFactory();
OWLClass c = factory.getOWLClass(IRI.create(CLAZZ));
OntClass jc = null;
try {
jc = j2o.ClassOwlToJena(c, RDFXML);
if(jc==null){
fail("Some problem accours");
}else{
assertEquals(jc.getURI(), c.getIRI().toString());
}