Program: 165468
Project: 165468
Buggy source:
@Override public void actionPerformed(ActionEvent arg0){
  this.guiMain.setMainGUIEnabled(false);
  worker=new SwingWorker<Void,String>(){
    @Override protected Void doInBackground() throws Exception {
      for (int movieNumberInList=0; movieNumberInList < guiMain.getCurrentlySelectedMovieFileList().size(); movieNumberInList++) {
        try {
          guiMain.getFrmMoviescraper().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
          if (guiMain.movieToWriteToDiskList == null) {
            System.err.println("String_Node_Str");
          }
          if (guiMain.movieToWriteToDiskList.get(movieNumberInList) == null) {
            System.out.println("String_Node_Str");
            continue;
          }
          System.out.println("String_Node_Str" + guiMain.movieToWriteToDiskList);
          if (guiMain.movieToWriteToDiskList != null) {
            if (guiMain.getPreferences().getRenameMovieFile()) {
              File oldMovieFile=guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList);
              Movie movie=guiMain.movieToWriteToDiskList.get(movieNumberInList);
              guiMain.getPreferences();
              String sanitizerString=MoviescraperPreferences.getSanitizerForFilename();
              guiMain.getPreferences();
              String renameString=MoviescraperPreferences.getRenamerString();
              Renamer renamer=new Renamer(renameString,sanitizerString,movie,oldMovieFile);
              String newMovieFilename=renamer.getNewFileName();
              System.out.println("String_Node_Str" + newMovieFilename);
              File newMovieFile=new File(newMovieFilename);
              boolean renameStatus=oldMovieFile.renameTo(newMovieFile);
              if (!renameStatus) {
                System.err.println("String_Node_Str" + oldMovieFile + "String_Node_Str"+ newMovieFile);
              }
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeToFile(new File(Movie.getFileNameOfNfo(newMovieFile,guiMain.getPreferences().getNfoNamedMovieDotNfo())),new File(Movie.getFileNameOfPoster(newMovieFile,guiMain.getPreferences().getNoMovieNameInImageFiles())),new File(Movie.getFileNameOfFanart(newMovieFile,guiMain.getPreferences().getNoMovieNameInImageFiles())),new File(Movie.getFileNameOfFolderJpg(newMovieFile)),new File(Movie.getFileNameOfExtraFanartFolderName(newMovieFile)),new File(Movie.getFileNameOfTrailer(newMovieFile)),guiMain.getPreferences());
            }
 else {
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeToFile(guiMain.getCurrentlySelectedNfoFileList().get(movieNumberInList),guiMain.getCurrentlySelectedPosterFileList().get(movieNumberInList),guiMain.getCurrentlySelectedFanartFileList().get(movieNumberInList),guiMain.getCurrentlySelectedFolderJpgFileList().get(movieNumberInList),new File(Movie.getFileNameOfExtraFanartFolderName(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList))),new File(Movie.getFileNameOfTrailer(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList))),guiMain.getPreferences());
            }
            if (guiMain.getPreferences().getExtraFanartScrapingEnabledPreference() && guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList).isDirectory()) {
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeExtraFanart(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList));
            }
          }
          if (guiMain.getPreferences().getDownloadActorImagesToActorFolderPreference() && guiMain.getCurrentlySelectedMovieFileList() != null && guiMain.getCurrentlySelectedDirectoryList() != null) {
            guiMain.movieToWriteToDiskList.get(movieNumberInList).writeActorImagesToFolder(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList));
          }
          System.out.println("String_Node_Str");
        }
 catch (        IOException e) {
          e.printStackTrace();
          guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
        }
 finally {
          guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
        }
      }
      return null;
    }
    @Override protected void done(){
      guiMain.setMainGUIEnabled(true);
      guiMain.updateFileListModel(guiMain.getCurrentlySelectedDirectoryList(),true);
      guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
    }
  }
;
  worker.execute();
}

Fixed version (ground truth):
@Override public void actionPerformed(ActionEvent arg0){
  this.guiMain.setMainGUIEnabled(false);
  worker=new SwingWorker<Void,String>(){
    @Override protected Void doInBackground() throws Exception {
      for (int movieNumberInList=0; movieNumberInList < guiMain.getCurrentlySelectedMovieFileList().size(); movieNumberInList++) {
        try {
          guiMain.getFrmMoviescraper().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
          if (guiMain.movieToWriteToDiskList == null) {
            System.err.println("String_Node_Str");
          }
          if (guiMain.movieToWriteToDiskList.get(movieNumberInList) == null) {
            System.out.println("String_Node_Str");
            continue;
          }
          System.out.println("String_Node_Str" + guiMain.movieToWriteToDiskList);
          if (guiMain.movieToWriteToDiskList != null) {
            if (guiMain.getPreferences().getRenameMovieFile()) {
              File oldMovieFile=guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList);
              Movie movie=guiMain.movieToWriteToDiskList.get(movieNumberInList);
              String sanitizerString=MoviescraperPreferences.getSanitizerForFilename();
              String renameString=MoviescraperPreferences.getRenamerString();
              Renamer renamer=new Renamer(renameString,sanitizerString,movie,oldMovieFile);
              String newMovieFilename=renamer.getNewFileName();
              System.out.println("String_Node_Str" + newMovieFilename);
              File newMovieFile=new File(newMovieFilename);
              boolean renameStatus=oldMovieFile.renameTo(newMovieFile);
              if (!renameStatus) {
                System.err.println("String_Node_Str" + oldMovieFile + "String_Node_Str"+ newMovieFile);
              }
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeToFile(new File(Movie.getFileNameOfNfo(newMovieFile,guiMain.getPreferences().getNfoNamedMovieDotNfo())),new File(Movie.getFileNameOfPoster(newMovieFile,guiMain.getPreferences().getNoMovieNameInImageFiles())),new File(Movie.getFileNameOfFanart(newMovieFile,guiMain.getPreferences().getNoMovieNameInImageFiles())),new File(Movie.getFileNameOfFolderJpg(newMovieFile)),new File(Movie.getFileNameOfExtraFanartFolderName(newMovieFile)),new File(Movie.getFileNameOfTrailer(newMovieFile)),guiMain.getPreferences());
            }
 else {
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeToFile(guiMain.getCurrentlySelectedNfoFileList().get(movieNumberInList),guiMain.getCurrentlySelectedPosterFileList().get(movieNumberInList),guiMain.getCurrentlySelectedFanartFileList().get(movieNumberInList),guiMain.getCurrentlySelectedFolderJpgFileList().get(movieNumberInList),new File(Movie.getFileNameOfExtraFanartFolderName(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList))),new File(Movie.getFileNameOfTrailer(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList))),guiMain.getPreferences());
            }
            if (guiMain.getPreferences().getExtraFanartScrapingEnabledPreference() && guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList).isDirectory()) {
              guiMain.movieToWriteToDiskList.get(movieNumberInList).writeExtraFanart(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList));
            }
          }
          if (guiMain.getPreferences().getDownloadActorImagesToActorFolderPreference() && guiMain.getCurrentlySelectedMovieFileList() != null && guiMain.getCurrentlySelectedDirectoryList() != null) {
            guiMain.movieToWriteToDiskList.get(movieNumberInList).writeActorImagesToFolder(guiMain.getCurrentlySelectedMovieFileList().get(movieNumberInList));
          }
          System.out.println("String_Node_Str");
        }
 catch (        IOException e) {
          e.printStackTrace();
          guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
        }
 finally {
          guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
        }
      }
      return null;
    }
    @Override protected void done(){
      guiMain.setMainGUIEnabled(true);
      guiMain.updateFileListModel(guiMain.getCurrentlySelectedDirectoryList(),true);
      guiMain.getFrmMoviescraper().setCursor(Cursor.getDefaultCursor());
    }
  }
;
  worker.execute();
}