code: public static final void resetMaximumInputSize() {
      String maxInputSizeStr = System.getProperty(Protocol.MAX_INPUT_SIZE_KEY);
  
      if (maxInputSizeStr == null) {
        maxInputSize = Protocol.FALLBACK_MAX_INPUT_SIZE;
      } else {
        maxInputSize = Integer.parseInt(maxInputSizeStr);
      }
    }
docs: Reset the maximum input size so that the property key is rechecked.
  This is needed for testing code because we are caching the maximum
  input size value.