Program: 21151
Project: 21151
Buggy source:
@Override public ArrayList<DownloadLink> decryptIt(CryptedLink param,ProgressController progress) throws Exception {
  br.getPage(param.getCryptedUrl());
  br.forceDebug(true);
  Form form=br.getFormbyProperty("String_Node_Str","String_Node_Str");
  while (form != null) {
    String url=form.getRegex("String_Node_Str").getMatch(0);
    File captchaFile=this.getLocalCaptchaFile(this);
    Browser.download(captchaFile,br.cloneBrowser().openGetConnection(url));
    String captchaCode=Plugin.getCaptchaCode(captchaFile,this,param);
    if (captchaCode == null)     return null;
    form.put("String_Node_Str",captchaCode);
    br.submitForm(form);
    if (br.containsHTML("String_Node_Str")) {
      br.getPage(param.getCryptedUrl());
      form=br.getFormbyProperty("String_Node_Str","String_Node_Str");
    }
 else {
      break;
    }
  }
  String[] container=br.getRegex("String_Node_Str").getColumn(0);
  if (container != null && container.length > 0) {
    File file=null;
    for (    String c : container) {
      URLConnectionAdapter con=br.openGetConnection("String_Node_Str" + c);
      if (con.getResponseCode() == 200) {
        br.downloadConnection(file=JDUtilities.getResourceFile("String_Node_Str" + c.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str","String_Node_Str")),con);
        break;
      }
 else {
        con.disconnect();
      }
    }
    if (file != null && file.exists() && file.length() > 100) {
      JDUtilities.getController().loadContainerFile(file);
    }
 else {
      throw new DecrypterException("String_Node_Str");
    }
  }
 else {
    throw new DecrypterException("String_Node_Str");
  }
  return new ArrayList<DownloadLink>();
}

Fixed version (ground truth):
@Override public ArrayList<DownloadLink> decryptIt(CryptedLink param,ProgressController progress) throws Exception {
  if (true)   throw new DecrypterException("String_Node_Str");
  br.getPage(param.getCryptedUrl());
  br.forceDebug(true);
  Form form=br.getFormbyProperty("String_Node_Str","String_Node_Str");
  while (form != null) {
    String url=form.getRegex("String_Node_Str").getMatch(0);
    File captchaFile=this.getLocalCaptchaFile(this);
    Browser.download(captchaFile,br.cloneBrowser().openGetConnection(url));
    String captchaCode=Plugin.getCaptchaCode(captchaFile,this,param);
    if (captchaCode == null)     return null;
    form.put("String_Node_Str",captchaCode);
    br.submitForm(form);
    if (br.containsHTML("String_Node_Str")) {
      br.getPage(param.getCryptedUrl());
      form=br.getFormbyProperty("String_Node_Str","String_Node_Str");
    }
 else {
      break;
    }
  }
  String[] container=br.getRegex("String_Node_Str").getColumn(0);
  if (container != null && container.length > 0) {
    File file=null;
    for (    String c : container) {
      URLConnectionAdapter con=br.openGetConnection("String_Node_Str" + c);
      if (con.getResponseCode() == 200) {
        br.downloadConnection(file=JDUtilities.getResourceFile("String_Node_Str" + c.replace("String_Node_Str","String_Node_Str").replace("String_Node_Str","String_Node_Str")),con);
        break;
      }
 else {
        con.disconnect();
      }
    }
    if (file != null && file.exists() && file.length() > 100) {
      JDUtilities.getController().loadContainerFile(file);
    }
 else {
      throw new DecrypterException("String_Node_Str");
    }
  }
 else {
    throw new DecrypterException("String_Node_Str");
  }
  return new ArrayList<DownloadLink>();
}