public void testSerialization() throws Exception {
    AtomicDouble a = new AtomicDouble();
    AtomicDouble b = serialClone(a);
    assertThat(b).isNotSameInstanceAs(a);
    a.set(-22.0);
    AtomicDouble c = serialClone(a);
    assertThat(c).isNotSameInstanceAs(b);
    assertBitEquals(-22.0, a.get());
    assertBitEquals(0.0, b.get());
    assertBitEquals(-22.0, c.get());

      x.set(i, (double) -i);
    }
    AtomicDoubleArray y = serialClone(x);
    assertTrue(x != y);
    assertEquals(x.length(), y.length());
    for (int i = 0; i < SIZE; i++) {
      assertBitEquals(x.get(i), y.get(i));
    }

    AtomicDoubleArray a = new AtomicDoubleArray(VALUES);
    AtomicDoubleArray b = serialClone(a);
    assertFalse(a.equals(b));
    assertFalse(b.equals(a));

      x.set(i, (double) -i);
    }
    AtomicDoubleArray y = serialClone(x);
    assertTrue(x != y);
    assertEquals(x.length(), y.length());
    for (int i = 0; i < SIZE; i++) {
      assertBitEquals(x.get(i), y.get(i));
    }

    AtomicDoubleArray a = new AtomicDoubleArray(VALUES);
    AtomicDoubleArray b = serialClone(a);
    assertFalse(a.equals(b));
    assertFalse(b.equals(a));