docs: protected static boolean fileDoesNotExist(String file, String path,
              String dest_dir) {
  
          File f = new File(dest_dir);
          if (!f.isDirectory())
              return false;
  
          String folderPath = createFolderPath(path);
  
          f = new File(f, folderPath);
  
          File javaFile = new File(f, file);
          boolean result = !javaFile.exists();
  
          return result;
      }