	protected static  RootSearcher searchRootDirectory(Path fPath)
	throws IOException {
		RootSearcher rootSearcher = new RootSearcher();
		Files.walkFileTree(fPath, rootSearcher);
		return rootSearcher;
	}
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.