List Files from hdfs/Hadoop Recursively using java

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DistributedFileSystem;

/**
 *
 * @author Shashwat Shriparv
 * @email  dwivedishashwat@gmail.com
 * @web    helpmetocode.blogspot.com
 */
public class RecursivelyPrintFilesOnHDFS {

    public static void main(String[] args) throws IOException, InterruptedException, URISyntaxException {
        printFilesRecursively("hdfs://master1:9000/");
    }

    public static void printFilesRecursively(String Url) throws IOException {
        try {