Change test case to use p.getInverseProperty() method to get an inver…

…se, rather than calling the data factory constructor method.

In the old code, the data factory method would be called by this anyway.

contract/src/test/java/org/semanticweb/owlapi/api/test/objectproperties/ObjectPropertySimplifierTestCase.java

@@ -38,26 +38,26 @@ public void testNamedSimplification() {
     @Test
     public void testInverseSimplification() {
         OWLObjectProperty p = ObjectProperty(IRI("p"));
-        OWLObjectPropertyExpression inv = ObjectInverseOf(p);
+        OWLObjectPropertyExpression inv = p.getInverseProperty();
         OWLObjectPropertyExpression exp = inv.getSimplified();
         assertEquals(inv, exp);
     }
 
     @Test
     public void testInverseInverseSimplification() {
         OWLObjectProperty p = ObjectProperty(IRI("p"));
-        OWLObjectPropertyExpression inv = ObjectInverseOf(p);
-        OWLObjectPropertyExpression inv2 = ObjectInverseOf(inv);
+        OWLObjectPropertyExpression inv = p.getInverseProperty();
+        OWLObjectPropertyExpression inv2 = inv.getInverseProperty();
         OWLObjectPropertyExpression exp = inv2.getSimplified();
         assertEquals(p, exp);
     }
 
     @Test
     public void testInverseInverseInverseSimplification() {
         OWLObjectProperty p = ObjectProperty(IRI("p"));
-        OWLObjectPropertyExpression inv = ObjectInverseOf(p);
-        OWLObjectPropertyExpression inv2 = ObjectInverseOf(inv);
-        OWLObjectPropertyExpression inv3 = ObjectInverseOf(inv2);
+        OWLObjectPropertyExpression inv = p.getInverseProperty();
+        OWLObjectPropertyExpression inv2 = inv.getInverseProperty();
+        OWLObjectPropertyExpression inv3 = inv2.getInverseProperty();
         OWLObjectPropertyExpression exp = inv3.getSimplified();
         assertEquals(inv, exp);
     }