@Test
public void testcleanPackageName() {

  String iriStr = "http://www.semanticweb.org/sesa/ontologies/2017/3/untitled-ontology-10#Hello";
  IRI iri = IRI.create(iriStr);
  String result = UTILS.cleanPackageName(iri);
  assertEquals("www.semanticweb.org.sesa.ontologies._2017._3.untitled_ontology_10", result);
}