docs: public static <R> List<R> applySubFilePathsAndGetAppliedList(
  			Path startDirectoryPath, int maxDepth, Predicate<Path> filter,
  			Function<Path, R> function, boolean isParallel) {
  		return applyPathListAndGetResultList(isParallel,
  				getSubFilePathList(startDirectoryPath, maxDepth, filter),
  				function);
  	}