Program: 61334
Project: 61334
Buggy source:
@Override public int run(String[] args) throws IOException {
  Option numReccomendationsOpt=buildOption("String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str");
  Option usersFileOpt=buildOption("String_Node_Str","String_Node_Str","String_Node_Str",null);
  Map<String,String> parsedArgs=parseArguments(args,numReccomendationsOpt,usersFileOpt);
  String inputPath=parsedArgs.get("String_Node_Str");
  String tempDirPath=parsedArgs.get("String_Node_Str");
  String outputPath=parsedArgs.get("String_Node_Str");
  String jarFile=parsedArgs.get("String_Node_Str");
  int recommendationsPerUser=Integer.parseInt(parsedArgs.get("String_Node_Str"));
  String usersFile=parsedArgs.get("String_Node_Str");
  String userVectorPath=tempDirPath + "String_Node_Str";
  String itemIDIndexPath=tempDirPath + "String_Node_Str";
  String cooccurrencePath=tempDirPath + "String_Node_Str";
  JobConf itemIDIndexConf=prepareJobConf(inputPath,itemIDIndexPath,jarFile,TextInputFormat.class,ItemIDIndexMapper.class,IntWritable.class,LongWritable.class,ItemIDIndexReducer.class,IntWritable.class,LongWritable.class,MapFileOutputFormat.class);
  JobClient.runJob(itemIDIndexConf);
  JobConf toUserVectorConf=prepareJobConf(inputPath,userVectorPath,jarFile,TextInputFormat.class,ToItemPrefsMapper.class,LongWritable.class,ItemPrefWritable.class,ToUserVectorReducer.class,LongWritable.class,VectorWritable.class,SequenceFileOutputFormat.class);
  JobClient.runJob(toUserVectorConf);
  JobConf toCooccurrenceConf=prepareJobConf(userVectorPath,cooccurrencePath,jarFile,SequenceFileInputFormat.class,UserVectorToCooccurrenceMapper.class,IntWritable.class,IntWritable.class,UserVectorToCooccurrenceReducer.class,IntWritable.class,VectorWritable.class,MapFileOutputFormat.class);
  JobClient.runJob(toCooccurrenceConf);
  JobConf recommenderConf=prepareJobConf(userVectorPath,outputPath,jarFile,SequenceFileInputFormat.class,RecommenderMapper.class,LongWritable.class,RecommendedItemsWritable.class,IdentityReducer.class,LongWritable.class,RecommendedItemsWritable.class,TextOutputFormat.class);
  recommenderConf.set(RecommenderMapper.COOCCURRENCE_PATH,cooccurrencePath);
  recommenderConf.set(RecommenderMapper.ITEMID_INDEX_PATH,itemIDIndexPath);
  recommenderConf.setInt(RecommenderMapper.RECOMMENDATIONS_PER_USER,recommendationsPerUser);
  recommenderConf.set(RecommenderMapper.USERS_FILE,usersFile);
  recommenderConf.setClass("String_Node_Str",GzipCodec.class,CompressionCodec.class);
  JobClient.runJob(recommenderConf);
  return 0;
}

Fixed version (ground truth):
@Override public int run(String[] args) throws IOException {
  Option numReccomendationsOpt=buildOption("String_Node_Str","String_Node_Str","String_Node_Str","String_Node_Str");
  Option usersFileOpt=buildOption("String_Node_Str","String_Node_Str","String_Node_Str",null);
  Map<String,String> parsedArgs=parseArguments(args,numReccomendationsOpt,usersFileOpt);
  if (parsedArgs == null) {
    return -1;
  }
  String inputPath=parsedArgs.get("String_Node_Str");
  String tempDirPath=parsedArgs.get("String_Node_Str");
  String outputPath=parsedArgs.get("String_Node_Str");
  String jarFile=parsedArgs.get("String_Node_Str");
  int recommendationsPerUser=Integer.parseInt(parsedArgs.get("String_Node_Str"));
  String usersFile=parsedArgs.get("String_Node_Str");
  String userVectorPath=tempDirPath + "String_Node_Str";
  String itemIDIndexPath=tempDirPath + "String_Node_Str";
  String cooccurrencePath=tempDirPath + "String_Node_Str";
  JobConf itemIDIndexConf=prepareJobConf(inputPath,itemIDIndexPath,jarFile,TextInputFormat.class,ItemIDIndexMapper.class,IntWritable.class,LongWritable.class,ItemIDIndexReducer.class,IntWritable.class,LongWritable.class,MapFileOutputFormat.class);
  JobClient.runJob(itemIDIndexConf);
  JobConf toUserVectorConf=prepareJobConf(inputPath,userVectorPath,jarFile,TextInputFormat.class,ToItemPrefsMapper.class,LongWritable.class,ItemPrefWritable.class,ToUserVectorReducer.class,LongWritable.class,VectorWritable.class,SequenceFileOutputFormat.class);
  JobClient.runJob(toUserVectorConf);
  JobConf toCooccurrenceConf=prepareJobConf(userVectorPath,cooccurrencePath,jarFile,SequenceFileInputFormat.class,UserVectorToCooccurrenceMapper.class,IntWritable.class,IntWritable.class,UserVectorToCooccurrenceReducer.class,IntWritable.class,VectorWritable.class,MapFileOutputFormat.class);
  JobClient.runJob(toCooccurrenceConf);
  JobConf recommenderConf=prepareJobConf(userVectorPath,outputPath,jarFile,SequenceFileInputFormat.class,RecommenderMapper.class,LongWritable.class,RecommendedItemsWritable.class,IdentityReducer.class,LongWritable.class,RecommendedItemsWritable.class,TextOutputFormat.class);
  recommenderConf.set(RecommenderMapper.COOCCURRENCE_PATH,cooccurrencePath);
  recommenderConf.set(RecommenderMapper.ITEMID_INDEX_PATH,itemIDIndexPath);
  recommenderConf.setInt(RecommenderMapper.RECOMMENDATIONS_PER_USER,recommendationsPerUser);
  recommenderConf.set(RecommenderMapper.USERS_FILE,usersFile);
  recommenderConf.setClass("String_Node_Str",GzipCodec.class,CompressionCodec.class);
  JobClient.runJob(recommenderConf);
  return 0;
}