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@SuppressWarnings("unchecked")
 public static void setObjectFieldsEmpty(Object obj) {
  // ¶Ôobj·´Éä
  Class objClass = obj.getClass();
  Method[] objmethods = objClass.getDeclaredMethods();
  Map objMeMap = new HashMap();
  for (int i = 0; i < objmethods.length; i++) {
   Method method = objmethods[i];
   objMeMap.put(method.getName(), method);
  }
  for (int i = 0; i < objmethods.length; i++) {
   {
    String methodName = objmethods[i].getName();
    if (methodName != null && methodName.startsWith("get")) {
     try {
      Object returnObj = objmethods[i].invoke(obj,
        new Object[0]);
      Method setmethod = (Method) objMeMap.get("set"
        + methodName.split("get")[1]);
      if (returnObj != null) {
       returnObj = null;
      }
      setmethod.invoke(obj, returnObj);
     } catch (IllegalArgumentException e) {
      e.printStackTrace();
     } catch (IllegalAccessException e) {
      e.printStackTrace();
     } catch (InvocationTargetException e) {
      e.printStackTrace();
     }
    }
   }

  }
 }