#vulnerable code 
                                protected List<File> getFilesInCache() {
        List<File> listFiles = (List<File>) listFiles(
                new File(downloader.getTargetPath()), null, true);
        sort(listFiles);
        return listFiles;
    } 
                            #location 3 
                            #vulnerability type THREAD_SAFETY_VIOLATION
#fixed code
                                protected List<File> getFilesInCache() {
        List<File> listFiles = (List<File>) listFiles(
                new File(config.getTargetPath()), null, true);
        sort(listFiles);
        return listFiles;
    }