AtomicDouble b = serialClone(a);
    assertNotSame(a, b);
    a.set(-22.0);
    AtomicDouble c = serialClone(a);
    assertNotSame(b, c);
    assertBitEquals(-22.0, a.get());
    assertBitEquals(0.0, b.get());
    assertBitEquals(-22.0, c.get());
    for (double x : VALUES) {
      AtomicDouble d = new AtomicDouble(x);
      assertBitEquals(serialClone(d).get(), d.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));

      } catch (NoSuchElementException success) {
      }
    } catch (InterruptedException ie) {
      threadUnexpectedException(ie);
    }
  }

  @SuppressWarnings("unchecked")
  <T> T serialClone(T o) {
    try {
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      ObjectOutputStream oos = new ObjectOutputStream(bos);
      oos.writeObject(o);
      oos.flush();
      oos.close();

      } catch (NoSuchElementException success) {
      }
    } catch (InterruptedException ie) {
      threadUnexpectedException(ie);
    }
  }

  @SuppressWarnings("unchecked")
  <T> T serialClone(T o) {
    try {
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      ObjectOutputStream oos = new ObjectOutputStream(bos);
      oos.writeObject(o);
      oos.flush();
      oos.close();