code: public static URI createFolderURI(File file) {
  		URI uri = URI.createFileURI(file.getAbsolutePath());
  		return toFolderURI(uri);
  	}
docs: In contrast to {@link URI#createFileURI(String)}, this appends a trailing path separator. This ensures
  the resulting URI can be used with methods like {@link #isPrefixOf(URI, URI)}, {@link URI#resolve(URI)} and
  {@link URI#deresolve(URI)}