Program: 184269
Project: 184269
Buggy source:
public static CueSheet open(java.io.File cueFile) throws IOException {
  CueSheet cueSheet=new CueSheet("String_Node_Str","String_Node_Str");
  BufferedReader reader=new BufferedReader(new FileReader(cueFile));
  CueItem currentItem=cueSheet;
  String token;
  for (String line; (line=reader.readLine()) != null; ) {
    Scanner tok=new Scanner(line);
    if (!tok.hasNext()) {
      continue;
    }
    token=tok.next();
    if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && currentItem instanceof Track) {
      Integer.parseInt(tok.next());
      Scanner sc=tok.useDelimiter(Pattern.compile("String_Node_Str"));
      int minutes=sc.nextInt(), seconds=sc.nextInt(), frames=sc.nextInt();
      Index index=new Index(minutes,seconds,frames);
      ((Track)currentItem).getIndices().add(index);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      currentItem.setTitle(nextToken);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      currentItem.setPerformer(nextToken);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && currentItem instanceof CueSheet) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      File file=new File(nextToken,File.Type.getType(tok.next()));
      currentItem.setFile(file);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      int trackNo=tok.nextInt();
      String nextToken=tok.nextLine().trim().toUpperCase();
      Mode trackMode=Mode.getMode(nextToken);
      currentItem=new Track(trackNo,trackMode);
      cueSheet.getTracks().add((Track)currentItem);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && tok.hasNextLine()) {
      System.out.println(tok.nextLine());
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
  }
  return cueSheet;
}

Fixed version (ground truth):
public static CueSheet open(java.io.File cueFile) throws IOException {
  CueSheet cueSheet=new CueSheet("String_Node_Str","String_Node_Str");
  BufferedReader reader=new BufferedReader(new FileReader(cueFile));
  CueItem currentItem=cueSheet;
  String token;
  for (String line; (line=reader.readLine()) != null; ) {
    Scanner tok=new Scanner(line);
    if (!tok.hasNext()) {
      continue;
    }
    token=tok.next();
    if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && currentItem instanceof Track) {
      Integer.parseInt(tok.next());
      Scanner sc=tok.useDelimiter(Pattern.compile("String_Node_Str"));
      int minutes=sc.nextInt(), seconds=sc.nextInt(), frames=sc.nextInt();
      Index index=new Index(minutes,seconds,frames);
      ((Track)currentItem).getIndices().add(index);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      currentItem.setTitle(nextToken);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      currentItem.setPerformer(nextToken);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && currentItem instanceof CueSheet) {
      String nextToken=tok.next();
      if (nextToken.startsWith(QUOTATION_MARK)) {
        if (nextToken.endsWith(QUOTATION_MARK)) {
          nextToken=nextToken.substring(1,nextToken.length() - 1);
        }
 else {
          nextToken=nextToken.substring(1) + tok.useDelimiter(QUOTATION_MARK).next();
        }
      }
      File file=new File(nextToken,File.Type.getType(tok.next()));
      currentItem.setFile(file);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
      int trackNo=tok.nextInt();
      String nextToken=tok.nextLine().trim().toUpperCase();
      Mode trackMode=Mode.getMode(nextToken);
      currentItem=new Track(trackNo,trackMode);
      cueSheet.getTracks().add((Track)currentItem);
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token) && tok.hasNextLine()) {
      System.out.println(tok.nextLine());
    }
 else     if ("String_Node_Str".equalsIgnoreCase(token)) {
    }
  }
  reader.close();
  return cueSheet;
}