String superString = super.pendingToString();
    String resultString = "";
    if (localInputFuture != null) {
      resultString = "inputFuture=[" + localInputFuture + "], ";
    }
    if (localFunction != null) {
      return resultString + "function=[" + localFunction + "]";
    } else if (superString != null) {
      return resultString + superString;
    }
    return null;
  }