code: @Override
      public void serialize(List<Field> auditFields, Object object,
              String objectName,  DeIdentify deidentify) {
          visited.clear();
         toFields(auditFields, object, objectName, deidentify);
      }
docs: /* (non-Javadoc)
  @see org.audit4j.core.ObjectSerializer#serialize(java.util.List, java.lang.Object, java.lang.String, org.audit4j.core.annotation.DeIdentify)