@Test
 // mock data
 // verification: ok
 public void writeToXml() {
   SeqBean bean = new SeqBeanSupporter();
   bean.setSeq(1L); // 不寫出
   bean.setVersion(1); // 不寫出
   //
   String result = CollectorHelper.writeToXml(SeqBeanSupporter.class, bean);
   System.out.println(result);
   assertNotNull(result);
 }
 @Test
 public void readFromXml() {
   SeqBean result = CollectorHelper.readFromXml(SeqBeanSupporter.class);
   System.out.println(result);
   assertNotNull(result);
 }