fessConfigField.set(action, ComponentUtil.getFessConfig());

        // Call registerExtraFields via reflection
        final java.lang.reflect.Method method = AdminSearchlistAction.class.getDeclaredMethod("registerExtraFields", RenderData.class);
        method.setAccessible(true);

        final RenderData renderData = new RenderData();
        method.invoke(action, renderData);

      } catch (NoSuchMethodException e) {
        continue;
      }
    }
    return false;
  }

  private static boolean isEqualsDefined(Class<?> cls) {
    try {
      return !cls.getDeclaredMethod("equals", Object.class).isSynthetic();
    } catch (NoSuchMethodException e) {
      return false;
    }
  }

  abstract static class Chopper {

    final Chopper or(Chopper you) {

      } catch (NoSuchMethodException e) {
        continue;
      }
    }
    return false;
  }

  private static boolean isEqualsDefined(Class<?> cls) {
    try {
      return !cls.getDeclaredMethod("equals", Object.class).isSynthetic();
    } catch (NoSuchMethodException e) {
      return false;
    }
  }

  abstract static class Chopper {

    final Chopper or(Chopper you) {