output: #fixed code
                                @Test
    public void testMissingSlotMillis() throws IOException {
      final String JOB_HISTORY_FILE_NAME =
          "src/test/resources/job_1329348432999_0003-1329348443227-user-Sleep+job-1329348468601-10-1-SUCCEEDED-default.jhist";
  
      File jobHistoryfile = new File(JOB_HISTORY_FILE_NAME);
      byte[] contents = Files.toByteArray(jobHistoryfile);
      final String JOB_CONF_FILE_NAME =
          "src/test/resources/job_1329348432655_0001_conf.xml";
      Configuration jobConf = new Configuration();
      jobConf.addResource(new Path(JOB_CONF_FILE_NAME));
  
      JobHistoryFileParserHadoop2 historyFileParser =
          new JobHistoryFileParserHadoop2(jobConf);
      assertNotNull(historyFileParser);
  
      JobKey jobKey = new JobKey("cluster1", "user", "Sleep", 1, "job_1329348432655_0001");
      historyFileParser.parse(contents, jobKey);
  
      // this history file has only map slot millis no reduce millis
      Long mapMbMillis = historyFileParser.getMapMbMillis();
      assertNotNull(mapMbMillis);
      assertEquals(mapMbMillis, new Long(178169856L));
      Long reduceMbMillis = historyFileParser.getReduceMbMillis();
      assertNotNull(reduceMbMillis);
      assertEquals(reduceMbMillis, Constants.NOTFOUND_VALUE);
  
      Long mbMillis = historyFileParser.getMegaByteMillis();
      assertNotNull(mbMillis);
      Long expValue = 188559872L;
      assertEquals(expValue, mbMillis);
    }
input: #vulnerable code 
                                @Test
    public void testMissingSlotMillis() throws IOException {
      final String JOB_HISTORY_FILE_NAME =
          "src/test/resources/job_1329348432999_0003-1329348443227-user-Sleep+job-1329348468601-10-1-SUCCEEDED-default.jhist";
  
      File jobHistoryfile = new File(JOB_HISTORY_FILE_NAME);
      byte[] contents = Files.toByteArray(jobHistoryfile);
      final String JOB_CONF_FILE_NAME =
          "src/test/resources/job_1329348432655_0001_conf.xml";
      Configuration jobConf = new Configuration();
      jobConf.addResource(new Path(JOB_CONF_FILE_NAME));
  
      JobHistoryFileParser historyFileParser =
          JobHistoryFileParserFactory.createJobHistoryFileParser(contents, jobConf);
      assertNotNull(historyFileParser);
  
      // confirm that we get back an object that can parse hadoop 2.0 files
      assertTrue(historyFileParser instanceof JobHistoryFileParserHadoop2);
      JobKey jobKey = new JobKey("cluster1", "user", "Sleep", 1, "job_1329348432655_0001");
      historyFileParser.parse(contents, jobKey);
  
      // this history file has only map slot millis no reduce millis
      Long mbMillis = historyFileParser.getMegaByteMillis();
      assertNotNull(mbMillis);
      Long expValue = 10402816L;
      assertEquals(expValue, mbMillis);
    } 
                              #location 23 
                              #vulnerability type NULL_DEREFERENCE