assertEquals(0, PfUtils.compareObjects(null, null));
assertEquals(-1, PfUtils.compareObjects(HELLO, null));
assertEquals(1, PfUtils.compareObjects(null, HELLO));
assertEquals(0, PfUtils.compareObjects(null, null));
assertEquals(-1, PfUtils.compareObjects(HELLO, null));
assertEquals(1, PfUtils.compareObjects(null, HELLO));