code: public static List<File> listFilesRecursively(File dir) {
  		List<File> fileList = newArrayList();
  		addFilesRecursively(dir, fileList);
  		return fileList;
  	}
docs: Creates a List of all the files in a directory and it's subdirectories.
  
  @param dir
  the directory to scan.
  @return List of all Files in the directory and it's subdirectories.