code: private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
          in.defaultReadObject();
          if ( null == this.object )
              return;
          Class<?> cls = this.object.getClass();
          if ( this.object instanceof Class )
              cls = (Class<?>) this.object;
          this.field = BshClassManager.memberCache.get(cls).findField(varName);
      }
docs: Fetch field removed from serializer.
  @param in secializer.
  @throws IOException mandatory throwing exception
  @throws ClassNotFoundException mandatory throwing exception