/guava/guava/src/com/google/common/io/Files.java
if ( parent == null) {
if ( files != null ) {
private static final SuccessorsFunction<File> FILE_TREE = new SuccessorsFunction<File>() { @Override public Iterable<File> successors(File file) { if (file.isDirectory()) { File[] files = file.listFiles(); <extra_id_0> return Collections.unmodifiableList(Arrays.asList(files)); } } return ImmutableList.of(); } };