Program: 21359
Project: 21359
Buggy source:
private Vector<String> ContainerLinks(String url){
  Vector<String> links=new Vector<String>();
  boolean fileDownloaded=false;
  if (!url.startsWith("String_Node_Str"))   url="String_Node_Str" + url;
  try {
    RequestInfo reqinfo=getRequest(new URL(url));
    String cookie=reqinfo.getCookie();
    File captchaFile=null;
    String capTxt=null;
    while (true) {
      reqinfo.setHtmlCode(reqinfo.getHtmlCode().replaceAll("String_Node_Str","String_Node_Str").replaceAll("String_Node_Str","String_Node_Str"));
      Matcher matcher=patternCaptcha.matcher(reqinfo.getHtmlCode());
      if (matcher.find()) {
        if (captchaFile != null && capTxt != null) {
          JDUtilities.appendInfoToFilename(this,captchaFile,capTxt,false);
        }
        ArrayList<ArrayList<String>> gifs=getAllSimpleMatches(reqinfo.getHtmlCode(),patternCaptcha);
        String captchaAdress="String_Node_Str" + gifs.get(0).get(1);
        HTTPConnection con=getRequestWithoutHtmlCode(new URL(captchaAdress),cookie,null,true).getConnection();
        if (con.getContentLength() < 1000) {
          while (!JDUtilities.getController().requestReconnect()) {
            try {
              Thread.sleep(5000);
            }
 catch (            InterruptedException e) {
            }
          }
          reqinfo=getRequest(new URL(url));
          cookie=reqinfo.getCookie();
          continue;
        }
        captchaFile=getLocalCaptchaFile(this,"String_Node_Str");
        fileDownloaded=JDUtilities.download(captchaFile,con);
        if (!fileDownloaded || !captchaFile.exists() || captchaFile.length() == 0) {
          logger.severe("String_Node_Str");
          try {
            Thread.sleep(1000);
            reqinfo=getRequest(new URL(url));
            cookie=reqinfo.getCookie();
          }
 catch (          InterruptedException e) {
          }
          continue;
        }
        logger.info("String_Node_Str" + captchaFile);
        capTxt=Plugin.getCaptchaCode(captchaFile,this);
        reqinfo=postRequest(new URL(url),"String_Node_Str" + matcher.group(1) + "String_Node_Str"+ capTxt+ "String_Node_Str");
      }
 else {
        if (captchaFile != null && capTxt != null) {
          JDUtilities.appendInfoToFilename(this,captchaFile,capTxt,true);
          if (useUserinputIfCaptchaUnknown() && this.getCaptchaDetectionID() == Plugin.CAPTCHA_USER_INPUT && this.getLastCaptcha() != null && this.getLastCaptcha().getLetterComperators() != null) {
            LetterComperator[] lcs=this.getLastCaptcha().getLetterComperators();
            this.getLastCaptcha().setCorrectcaptchaCode(capTxt.trim());
            if (lcs.length == capTxt.trim().length()) {
              for (int i=0; i < capTxt.length(); i++) {
                if (lcs[i] != null && lcs[i].getDecodedValue() != null && capTxt.substring(i,i + 1).equalsIgnoreCase(lcs[i].getDecodedValue()) && lcs[i].getValityPercent() < 30.0) {
                  logger.severe("String_Node_Str" + i + "String_Node_Str"+ lcs[i].getDecodedValue()+ "String_Node_Str"+ lcs[i].getValityPercent()+ "String_Node_Str"+ capTxt.substring(i,i + 1));
                }
 else {
                  logger.severe("String_Node_Str" + i + "String_Node_Str"+ lcs[i].getDecodedValue()+ "String_Node_Str"+ lcs[i].getValityPercent()+ "String_Node_Str"+ capTxt.substring(i,i + 1));
                  final String character=capTxt.substring(i,i + 1);
                  logger.info("String_Node_Str");
                  Letter letter=lcs[i].getA();
                  String captchaHash=UTILITIES.getLocalHash(captchaFile);
                  letter.setSourcehash(captchaHash);
                  letter.setOwner(this.getLastCaptcha().owner);
                  letter.setDecodedValue(character);
                  this.getLastCaptcha().owner.letterDB.add(letter);
                  this.getLastCaptcha().owner.saveMTHFile();
                }
              }
            }
 else {
              logger.info("String_Node_Str");
            }
          }
        }
        break;
      }
    }
    if (reqinfo.getLocation() != null) {
      links.add(reqinfo.getLocation());
    }
    Pattern pattern=Pattern.compile("String_Node_Str",Pattern.CASE_INSENSITIVE);
    Matcher matcher=pattern.matcher(reqinfo.getHtmlCode());
    while (matcher.find()) {
      reqinfo=getRequest(new URL(matcher.group(1)));
      reqinfo=getRequest(new URL(getBetween(reqinfo.getHtmlCode(),"String_Node_Str","String_Node_Str")));
      String loc=reqinfo.getLocation();
      if (loc != null)       links.add(loc);
    }
  }
 catch (  IOException e) {
    e.printStackTrace();
  }
  return links;
}

Fixed version (ground truth):
private Vector<String> ContainerLinks(String url){
  Vector<String> links=new Vector<String>();
  boolean fileDownloaded=false;
  if (!url.startsWith("String_Node_Str"))   url="String_Node_Str" + url;
  try {
    RequestInfo reqinfo=getRequest(new URL(url));
    String cookie=reqinfo.getCookie();
    File captchaFile=null;
    String capTxt=null;
    while (true) {
      reqinfo.setHtmlCode(reqinfo.getHtmlCode().replaceAll("String_Node_Str","String_Node_Str").replaceAll("String_Node_Str","String_Node_Str"));
      Matcher matcher=patternCaptcha.matcher(reqinfo.getHtmlCode());
      if (matcher.find()) {
        if (captchaFile != null && capTxt != null) {
          JDUtilities.appendInfoToFilename(this,captchaFile,capTxt,false);
        }
        ArrayList<ArrayList<String>> gifs=getAllSimpleMatches(reqinfo.getHtmlCode(),patternCaptcha);
        String captchaAdress="String_Node_Str" + gifs.get(0).get(1);
        HTTPConnection con=getRequestWithoutHtmlCode(new URL(captchaAdress),cookie,null,true).getConnection();
        if (con.getContentLength() < 1000) {
          while (!JDUtilities.getController().requestReconnect()) {
            try {
              Thread.sleep(5000);
            }
 catch (            InterruptedException e) {
            }
          }
          reqinfo=getRequest(new URL(url));
          cookie=reqinfo.getCookie();
          continue;
        }
        captchaFile=getLocalCaptchaFile(this,"String_Node_Str");
        fileDownloaded=JDUtilities.download(captchaFile,con);
        if (!fileDownloaded || !captchaFile.exists() || captchaFile.length() == 0) {
          logger.severe("String_Node_Str");
          try {
            Thread.sleep(1000);
            reqinfo=getRequest(new URL(url));
            cookie=reqinfo.getCookie();
          }
 catch (          InterruptedException e) {
          }
          continue;
        }
        logger.info("String_Node_Str" + captchaFile);
        capTxt=Plugin.getCaptchaCode(captchaFile,this);
        reqinfo=postRequest(new URL(url),"String_Node_Str" + matcher.group(1) + "String_Node_Str"+ capTxt+ "String_Node_Str");
      }
 else {
        if (captchaFile != null && capTxt != null) {
          JDUtilities.appendInfoToFilename(this,captchaFile,capTxt,true);
          if (useUserinputIfCaptchaUnknown() && this.getCaptchaDetectionID() == Plugin.CAPTCHA_USER_INPUT && this.getLastCaptcha() != null && this.getLastCaptcha().getLetterComperators() != null) {
            LetterComperator[] lcs=this.getLastCaptcha().getLetterComperators();
            this.getLastCaptcha().setCorrectcaptchaCode(capTxt.trim());
            if (lcs.length == capTxt.trim().length()) {
              for (int i=0; i < capTxt.length(); i++) {
                if (lcs[i] != null && lcs[i].getDecodedValue() != null && capTxt.substring(i,i + 1).equalsIgnoreCase(lcs[i].getDecodedValue()) && lcs[i].getValityPercent() < 30.0) {
                  logger.severe("String_Node_Str" + i + "String_Node_Str"+ lcs[i].getDecodedValue()+ "String_Node_Str"+ lcs[i].getValityPercent()+ "String_Node_Str"+ capTxt.substring(i,i + 1));
                }
 else {
                  logger.severe("String_Node_Str" + i + "String_Node_Str"+ lcs[i].getDecodedValue()+ "String_Node_Str"+ lcs[i].getValityPercent()+ "String_Node_Str"+ capTxt.substring(i,i + 1));
                  final String character=capTxt.substring(i,i + 1);
                  logger.info("String_Node_Str");
                  Letter letter=lcs[i].getA();
                  String captchaHash=UTILITIES.getLocalHash(captchaFile);
                  letter.setSourcehash(captchaHash);
                  letter.setOwner(this.getLastCaptcha().owner);
                  letter.setDecodedValue(character);
                  this.getLastCaptcha().owner.letterDB.add(letter);
                  this.getLastCaptcha().owner.saveMTHFile();
                }
              }
            }
 else {
              logger.info("String_Node_Str");
            }
          }
        }
        break;
      }
    }
    if (reqinfo.getLocation() != null) {
      links.add(reqinfo.getLocation());
    }
    Form[] forms=reqinfo.getForms();
    for (int i=0; i < forms.length; i++) {
      if (!forms[i].action.contains("String_Node_Str")) {
        try {
          reqinfo=getRequest(new URL(forms[i].action));
          reqinfo=getRequest(new URL(getBetween(reqinfo.getHtmlCode(),"String_Node_Str","String_Node_Str")),null,null,false);
          String loc=reqinfo.getLocation();
          if (loc != null)           links.add(loc);
        }
 catch (        Exception e) {
        }
      }
    }
  }
 catch (  IOException e) {
    e.printStackTrace();
  }
  return links;
}