Problem z uruchomieniem aplikacji korzystajacej z hadoop

Mam zainstalowanego hadoopa wedug instrukcji: http://hostovita.pl/blog/jak-zainstalowac-hadoop-offline-ubuntu-16-04/ teoretycznie sam hadoop dziala.
Mam problem z uruchomieniem aplikacji (kod w komentarzu).

Blad przy dzialaniu:

hadoop@ubuntu:/usr/local/hadoop$ /usr/local/hadoop/bin/hadoop jar HadoopTest.jar data /data/input /data/output
17/05/16 20:33:55 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
17/05/16 20:33:55 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
17/05/16 20:33:55 WARN mapreduce.JobResourceUploader: Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this.
17/05/16 20:33:55 WARN mapreduce.JobResourceUploader: No job jar file set.  User classes may not be found. See Job or Job#setJar(String).
17/05/16 20:33:55 INFO input.FileInputFormat: Total input files to process : 2
17/05/16 20:33:55 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/tmp/hadoop/mapred/staging/hadoop289170000/.staging/job_local289170000_0001
Exception in thread "main" java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getBlockIndex(FileInputFormat.java:450)
	at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:419)
	at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:303)
	at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:320)
	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:198)
	at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1341)
	at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1338)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807)
	at org.apache.hadoop.mapreduce.Job.submit(Job.java:1338)
	at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1359)
	at org.myorg.WordCount.main(WordCount.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

package org.myorg;

import java.io.IOException;
import java.util.*;

import org.apache.hadoop.fs.Path;
import org.apache.hadoop.conf.*;
import org.apache.hadoop.io.*;
import org.apache.hadoop.mapreduce.*;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;

public class WordCount {

	public static class Map extends Mapper<LongWritable, Text, Text, IntWritable> {
		private final static IntWritable one = new IntWritable(1);
		private Text word = new Text();

		public void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
			String line = value.toString();
			StringTokenizer tokenizer = new StringTokenizer(line);
			while (tokenizer.hasMoreTokens()) {
				word.set(tokenizer.nextToken());
				context.write(word, one);
			}
		}
	}

	public static class Reduce extends Reducer<Text, IntWritable, Text, IntWritable> {

		public void reduce(Text key, Iterable<IntWritable> values, Context context)
				throws IOException, InterruptedException {
			int sum = 0;
			for (IntWritable val : values) {
				sum += val.get();
			}
			context.write(key, new IntWritable(sum));
		}
	}

	public static void main(String[] args) throws Exception {
		Configuration conf = new Configuration();
		conf.set("fs.deafultFS", "hdfs://localhost:9000");

		Job job = new Job(conf, "wordcount");

		job.setOutputKeyClass(Text.class);
		job.setOutputValueClass(IntWritable.class);

		job.setMapperClass(Map.class);
		job.setReducerClass(Reduce.class);

		job.setInputFormatClass(TextInputFormat.class);
		job.setOutputFormatClass(TextOutputFormat.class);

		FileInputFormat.addInputPath(job, new Path(args[0]));
		FileOutputFormat.setOutputPath(job, new Path(args[1]));

		job.waitForCompletion(true);
	}

}

nikt nie pomoże? :(