DistributedFileSystem hdfs = cluster.getFileSystem();
String userDir = hdfs.getHomeDirectory().toUri().getPath().toString();
Path file = new Path(userDir, "file");
Path dir = new Path(userDir, "/dir");
Path link = new Path(userDir, "/link");
hdfs.createNewFile(file);
hdfs.mkdirs(dir);
hdfs.createSymlink(file, link, false);
long mtimeFile = hdfs.getFileStatus(file).getModificationTime();
long atimeFile = hdfs.getFileStatus(file).getAccessTime();