通过对象输出流改变对象的物理地址，使得地址不同但内容相同

Boolean a = Boolean.TRUE;
parseBoolean(Boolean a) ;
 System.out.println(a==Boolean.TRUE); //答案 = false;
答案 = true;

 

private Boolean parseBoolean(Boolean a) throws IOException, ClassNotFoundException {
 ObjectOutputStream objectwriter;
 ObjectInputStream objectreader;
 ByteArrayOutputStream ba = new ByteArrayOutputStream();
 objectwriter = new ObjectOutputStream(ba);
 objectwriter.writeObject(a);
 ByteArrayInputStream bi = new ByteArrayInputStream(ba.toByteArray());
 objectreader = new ObjectInputStream(bi);
 a = (Boolean) objectreader.readObject();
 return a;
 }