Program: 20848
Project: 20848
Buggy source:
@Override public ArrayList<DownloadLink> decryptIt(CryptedLink parameter,ProgressController progress) throws Exception {
  ArrayList<DownloadLink> decryptedLinks=new ArrayList<DownloadLink>();
  br.setFollowRedirects(true);
  String link=parameter.toString();
  br.getPage(link);
  boolean crypted=false;
  if (br.containsHTML("String_Node_Str")) {
    for (int i=0; i <= 3; i++) {
      String id=new Regex(link,"String_Node_Str").getMatch(0);
      if (id == null)       id=new Regex(link,"String_Node_Str").getMatch(0);
      Form pwform=br.getForm(0);
      if (pwform == null || id == null)       return null;
      String pw="String_Node_Str";
      pwform.put("String_Node_Str" + id,pw);
      br.submitForm(pwform);
      if (br.containsHTML("String_Node_Str"))       continue;
      break;
    }
    if (br.containsHTML("String_Node_Str"))     throw new DecrypterException(DecrypterException.PASSWORD);
    crypted=true;
  }
  if (crypted) {
    logger.info("String_Node_Str" + link + "String_Node_Str");
    String hash=br.getRegex("String_Node_Str").getMatch(0);
    if (hash == null)     return null;
    String linkPage=link + "String_Node_Str" + hash;
    br.getPage(linkPage);
  }
  String[] links=HTMLParser.getHttpLinks(br.toString(),null);
  ArrayList<String> pws=HTMLParser.findPasswords(br.toString());
  for (  String element : links) {
    if (element.contains("String_Node_Str"))     continue;
    decryptedLinks.add(dl=createDownloadlink(element));
    dl.addSourcePluginPasswordList(pws);
  }
  return decryptedLinks;
}

Fixed version (ground truth):
@Override public ArrayList<DownloadLink> decryptIt(CryptedLink parameter,ProgressController progress) throws Exception {
  ArrayList<DownloadLink> decryptedLinks=new ArrayList<DownloadLink>();
  br.setFollowRedirects(true);
  String link=parameter.toString();
  br.getPage(link);
  boolean crypted=false;
  if (br.containsHTML("String_Node_Str")) {
    for (int i=0; i <= 3; i++) {
      String id=new Regex(link,"String_Node_Str").getMatch(0);
      if (id == null)       id=new Regex(link,"String_Node_Str").getMatch(0);
      Form pwform=br.getForm(0);
      if (pwform == null || id == null)       return null;
      String pw="String_Node_Str";
      pwform.put("String_Node_Str" + id,pw);
      br.submitForm(pwform);
      if (br.containsHTML("String_Node_Str"))       continue;
      break;
    }
    if (br.containsHTML("String_Node_Str"))     throw new DecrypterException(DecrypterException.PASSWORD);
    crypted=true;
  }
  if (crypted) {
    logger.info("String_Node_Str" + link + "String_Node_Str");
    String hash=br.getRegex("String_Node_Str").getMatch(0);
    if (hash == null)     return null;
    String linkPage=link + "String_Node_Str" + hash;
    br.getPage(linkPage);
  }
  String allLinks=br.getRegex("String_Node_Str").getMatch(0);
  if (allLinks == null)   return null;
  String[] links=HTMLParser.getHttpLinks(allLinks,null);
  if (links == null || links.length == 0)   throw new DecrypterException(JDL.L("String_Node_Str","String_Node_Str"));
  ArrayList<String> pws=HTMLParser.findPasswords(allLinks);
  for (  String element : links) {
    if (element.contains("String_Node_Str"))     continue;
    decryptedLinks.add(dl=createDownloadlink(element));
    dl.addSourcePluginPasswordList(pws);
  }
  return decryptedLinks;
}