Program: 139654
Project: 139654
Buggy source:
public static String importToStucture(File importFile,IFolder selectionFolder,ExpressionType type,boolean skip,boolean rename){
  StringBuffer importInformation=new StringBuffer();
  Set<String> names=PatternUtilities.getAllPatternNames(selectionFolder);
  String fileExtName=getFileExtName(importFile);
  if ("String_Node_Str".equalsIgnoreCase(fileExtName)) {
    try {
      CsvReader reader=new CsvReader(new FileReader(importFile),CURRENT_SEPARATOR);
      reader.setEscapeMode(ESCAPE_MODE_BACKSLASH);
      reader.setTextQualifier(TEXT_QUAL);
      reader.setUseTextQualifier(USE_TEXT_QUAL);
      reader.readHeaders();
      while (reader.readRecord()) {
        String name=reader.get(PatternToExcelEnum.Label.getLiteral());
        if (names.contains(name)) {
          if (skip) {
            importInformation.append("String_Node_Str" + name + "String_Node_Str");
            importInformation.append("String_Node_Str");
            continue;
          }
          if (rename) {
            name=name + "String_Node_Str" + new Date()+ "String_Node_Str";
          }
        }
        PatternParameters patternParameters=new ImportFactory().new PatternParameters();
        patternParameters.name=name;
        patternParameters.auther=reader.get(PatternToExcelEnum.Author.getLiteral());
        patternParameters.description=reader.get(PatternToExcelEnum.Description.getLiteral());
        patternParameters.purpose=reader.get(PatternToExcelEnum.Purpose.getLiteral());
        patternParameters.relativePath=reader.get(PatternToExcelEnum.RelativePath.getLiteral());
        for (        PatternLanguageType languagetype : PatternLanguageType.values()) {
          String cellStr=reader.get(languagetype.getExcelEnum().getLiteral());
          if (cellStr != null && !cellStr.equals("String_Node_Str")) {
            patternParameters.regex.put(languagetype.getLiteral(),cellStr);
          }
        }
        String relativePath=createAndStorePattern(patternParameters,selectionFolder,type);
        names.add(name);
        importInformation.append("String_Node_Str" + name + "String_Node_Str"+ relativePath+ "String_Node_Str");
        importInformation.append("String_Node_Str");
      }
      reader.close();
    }
 catch (    Exception e) {
      log.error(e,e);
      importInformation.append("String_Node_Str");
      importInformation.append("String_Node_Str");
    }
  }
  if ("String_Node_Str".equalsIgnoreCase(fileExtName)) {
    Map<Integer,PatternLanguageType> expressionMap=new HashMap<Integer,PatternLanguageType>();
    try {
      WorkbookSettings settings=new WorkbookSettings();
      settings.setEncoding("String_Node_Str");
      Workbook rwb=Workbook.getWorkbook(importFile,settings);
      Sheet[] sheets=rwb.getSheets();
      for (      Sheet sheet : sheets) {
        Cell[] headerRow=sheet.getRow(0);
        for (        Cell cell : headerRow) {
          for (          PatternLanguageType languageType : PatternLanguageType.values()) {
            if (cell.getContents().equals(languageType.getExcelEnum().getLiteral())) {
              expressionMap.put(cell.getColumn(),languageType);
            }
          }
        }
        for (int i=1; i < sheet.getRows(); i++) {
          Cell[] row=sheet.getRow(i);
          Cell cell=row[0];
          if (CellType.LABEL.equals(cell.getType())) {
            String contents=cell.getContents();
            if (names.contains(contents)) {
              if (skip) {
                importInformation.append("String_Node_Str" + contents + "String_Node_Str");
                importInformation.append("String_Node_Str");
                continue;
              }
              if (rename) {
                contents=contents + "String_Node_Str" + new Date()+ "String_Node_Str";
              }
            }
            PatternParameters patternParameters=new ImportFactory().new PatternParameters();
            patternParameters.name=contents;
            patternParameters.auther=row[6].getContents();
            patternParameters.description=row[2].getContents();
            patternParameters.purpose=row[1].getContents();
            patternParameters.status=DevelopmentStatus.DRAFT.getLiteral();
            for (            int columnIndex : expressionMap.keySet()) {
              String rowContent=row[columnIndex].getContents();
              if (!rowContent.equals("String_Node_Str")) {
                patternParameters.regex.put(expressionMap.get(columnIndex).getLiteral(),rowContent);
              }
            }
            String relativePath=createAndStorePattern(patternParameters,selectionFolder,type);
            names.add(contents);
            importInformation.append("String_Node_Str" + contents + "String_Node_Str"+ relativePath+ "String_Node_Str");
            importInformation.append("String_Node_Str");
          }
        }
      }
      rwb.close();
    }
 catch (    BiffException e) {
      log.error(e,e);
      importInformation.append("String_Node_Str");
      importInformation.append("String_Node_Str");
    }
catch (    IOException e) {
      log.error(e,e);
      importInformation.append("String_Node_Str");
      importInformation.append("String_Node_Str");
    }
  }
  return importInformation.toString();
}

Fixed version (ground truth):
public static List<String> importToStucture(File importFile,IFolder selectionFolder,ExpressionType type,boolean skip,boolean rename){
  List<String> importInformation=new ArrayList<String>();
  Set<String> names=PatternUtilities.getAllPatternNames(selectionFolder);
  String fileExtName=getFileExtName(importFile);
  if ("String_Node_Str".equalsIgnoreCase(fileExtName)) {
    try {
      CsvReader reader=new CsvReader(new FileReader(importFile),CURRENT_SEPARATOR);
      reader.setEscapeMode(ESCAPE_MODE_BACKSLASH);
      reader.setTextQualifier(TEXT_QUAL);
      reader.setUseTextQualifier(USE_TEXT_QUAL);
      reader.readHeaders();
      while (reader.readRecord()) {
        String name=reader.get(PatternToExcelEnum.Label.getLiteral());
        if (names.contains(name)) {
          if (skip) {
            importInformation.add("String_Node_Str" + name + "String_Node_Str");
            continue;
          }
          if (rename) {
            name=name + "String_Node_Str" + new Date()+ "String_Node_Str";
          }
        }
        PatternParameters patternParameters=new ImportFactory().new PatternParameters();
        patternParameters.name=name;
        patternParameters.auther=reader.get(PatternToExcelEnum.Author.getLiteral());
        patternParameters.description=reader.get(PatternToExcelEnum.Description.getLiteral());
        patternParameters.purpose=reader.get(PatternToExcelEnum.Purpose.getLiteral());
        patternParameters.relativePath=reader.get(PatternToExcelEnum.RelativePath.getLiteral());
        for (        PatternLanguageType languagetype : PatternLanguageType.values()) {
          String cellStr=reader.get(languagetype.getExcelEnum().getLiteral());
          if (cellStr != null && !cellStr.equals("String_Node_Str")) {
            patternParameters.regex.put(languagetype.getLiteral(),cellStr);
          }
        }
        String relativePath="String_Node_Str" + createAndStorePattern(patternParameters,selectionFolder,type);
        names.add(name);
        importInformation.add("String_Node_Str" + name + "String_Node_Str"+ relativePath+ "String_Node_Str");
      }
      reader.close();
    }
 catch (    Exception e) {
      log.error(e,e);
      importInformation.add("String_Node_Str");
    }
  }
  if ("String_Node_Str".equalsIgnoreCase(fileExtName)) {
    Map<Integer,PatternLanguageType> expressionMap=new HashMap<Integer,PatternLanguageType>();
    try {
      WorkbookSettings settings=new WorkbookSettings();
      settings.setEncoding("String_Node_Str");
      Workbook rwb=Workbook.getWorkbook(importFile,settings);
      Sheet[] sheets=rwb.getSheets();
      for (      Sheet sheet : sheets) {
        Cell[] headerRow=sheet.getRow(0);
        for (        Cell cell : headerRow) {
          for (          PatternLanguageType languageType : PatternLanguageType.values()) {
            if (cell.getContents().equals(languageType.getExcelEnum().getLiteral())) {
              expressionMap.put(cell.getColumn(),languageType);
            }
          }
        }
        for (int i=1; i < sheet.getRows(); i++) {
          Cell[] row=sheet.getRow(i);
          Cell cell=row[0];
          if (CellType.LABEL.equals(cell.getType())) {
            String contents=cell.getContents();
            if (names.contains(contents)) {
              if (skip) {
                importInformation.add("String_Node_Str" + contents + "String_Node_Str");
                continue;
              }
              if (rename) {
                contents=contents + "String_Node_Str" + new Date()+ "String_Node_Str";
              }
            }
            PatternParameters patternParameters=new ImportFactory().new PatternParameters();
            patternParameters.name=contents;
            patternParameters.auther=row[6].getContents();
            patternParameters.description=row[2].getContents();
            patternParameters.purpose=row[1].getContents();
            patternParameters.status=DevelopmentStatus.DRAFT.getLiteral();
            for (            int columnIndex : expressionMap.keySet()) {
              String rowContent=row[columnIndex].getContents();
              if (!rowContent.equals("String_Node_Str")) {
                patternParameters.regex.put(expressionMap.get(columnIndex).getLiteral(),rowContent);
              }
            }
            String relativePath="String_Node_Str" + createAndStorePattern(patternParameters,selectionFolder,type);
            names.add(contents);
            importInformation.add("String_Node_Str" + contents + "String_Node_Str"+ relativePath+ "String_Node_Str");
          }
        }
      }
      rwb.close();
    }
 catch (    BiffException e) {
      log.error(e,e);
      importInformation.add("String_Node_Str");
    }
catch (    IOException e) {
      log.error(e,e);
      importInformation.add("String_Node_Str");
    }
  }
  return importInformation;
}