Java利用序列化实现对象深度clone的方法

ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(byteOut);
out.writeObject(obj);
ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
ObjectInputStream in =new ObjectInputStream(byteIn);
Object newObj=in.readObject();