         final ListValuedMap map0 = makeObject();         final ListValuedMap map0 = makeObject();          map0.put("a", "a0");         map0.put("a", "a0");         map0.put("a", "a0");         map0.put("a", "a0");         assertEquals(map0, map0);         assertEquals(map0.hashCode(), map0.hashCode());          map0.put("b", "b0");         map0.put("b", "b0");         map0.put("b", "b0");         map0.put("b", "b0");         assertNotSame(map0, map0);         assertNotSame(map0.hashCode(), map0.hashCode());     }      