Program: 85482
Project: 85482
Buggy source:
public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response) throws Exception {
  if (request.getMethod().equalsIgnoreCase("String_Node_Str")) {
    return mapping.findForward("String_Node_Str");
  }
 else   if (isCancelled(request)) {
    return new ActionForward("String_Node_Str");
  }
 else {
    ActionMessages errors=form.validate(mapping,request);
    if (!errors.isEmpty()) {
      saveErrors(request,errors);
      return mapping.findForward("String_Node_Str");
    }
  }
  if (log.isDebugEnabled()) {
    log.debug("String_Node_Str");
  }
  ActionMessages errors=new ActionMessages();
  UserForm userForm=(UserForm)form;
  User user=(User)convert(form);
  String algorithm=(String)getConfiguration().get(Constants.ENC_ALGORITHM);
  user.addRole(Constants.USER_ROLE);
  try {
    if (algorithm == null) {
      log.debug("String_Node_Str");
      algorithm="String_Node_Str";
    }
    user.setPassword(StringUtil.encodePassword(user.getPassword(),algorithm));
    UserManager mgr=(UserManager)getBean("String_Node_Str");
    user=mgr.saveUser(user);
    String loginCookie=mgr.createLoginCookie(user.getUsername());
    RequestUtil.setCookie(response,Constants.LOGIN_COOKIE,loginCookie,request.getContextPath());
  }
 catch (  Exception e) {
    if ((e.getMessage() != null) && (e.getMessage().indexOf("String_Node_Str") != -1)) {
      log.warn("String_Node_Str" + e.getMessage());
      errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername(),userForm.getEmail()));
      saveErrors(request,errors);
      return mapping.getInputForward();
    }
    e.printStackTrace();
    errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str"));
    while (e != null) {
      String msg=e.getMessage();
      if ((msg.indexOf("String_Node_Str") != -1) || (msg.indexOf("String_Node_Str") != -1)) {
        log.warn("String_Node_Str" + e.getMessage());
        errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername(),userForm.getEmail()));
        break;
      }
      errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",e.getMessage()));
      e=(Exception)e.getCause();
    }
    saveErrors(request,errors);
    return mapping.getInputForward();
  }
  ActionMessages messages=new ActionMessages();
  MessageResources resources=getResources(request);
  messages.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername()));
  HttpSession session=request.getSession();
  session.setAttribute(Globals.MESSAGE_KEY,messages);
  session.setAttribute(Constants.REGISTERED,Boolean.TRUE);
  if (log.isDebugEnabled()) {
    log.debug("String_Node_Str" + userForm.getUsername() + "String_Node_Str");
  }
  StringBuffer msg=new StringBuffer();
  msg.append(resources.getMessage("String_Node_Str"));
  msg.append("String_Node_Str" + resources.getMessage("String_Node_Str"));
  msg.append("String_Node_Str" + userForm.getUsername() + "String_Node_Str");
  msg.append(resources.getMessage("String_Node_Str") + "String_Node_Str");
  msg.append(userForm.getPassword());
  msg.append("String_Node_Str" + RequestUtils.serverURL(request) + request.getContextPath());
  String subject=resources.getMessage("String_Node_Str");
  try {
    MailSender.sendTextMessage(Constants.DEFAULT_FROM,userForm.getEmail(),null,subject,msg.toString());
  }
 catch (  MessagingException me) {
    log.warn("String_Node_Str");
  }
  return mapping.findForward("String_Node_Str");
}

Fixed version (ground truth):
public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response) throws Exception {
  if (request.getMethod().equals("String_Node_Str") && request.getParameter("String_Node_Str") == null) {
    return mapping.findForward("String_Node_Str");
  }
 else   if (isCancelled(request)) {
    return new ActionForward("String_Node_Str");
  }
 else {
    ActionMessages errors=form.validate(mapping,request);
    if (!errors.isEmpty()) {
      saveErrors(request,errors);
      return mapping.findForward("String_Node_Str");
    }
  }
  if (log.isDebugEnabled()) {
    log.debug("String_Node_Str");
  }
  ActionMessages errors=new ActionMessages();
  UserForm userForm=(UserForm)form;
  User user=(User)convert(form);
  String algorithm=(String)getConfiguration().get(Constants.ENC_ALGORITHM);
  user.addRole(Constants.USER_ROLE);
  try {
    if (algorithm == null) {
      log.debug("String_Node_Str");
      algorithm="String_Node_Str";
    }
    user.setPassword(StringUtil.encodePassword(user.getPassword(),algorithm));
    UserManager mgr=(UserManager)getBean("String_Node_Str");
    user=mgr.saveUser(user);
    String loginCookie=mgr.createLoginCookie(user.getUsername());
    RequestUtil.setCookie(response,Constants.LOGIN_COOKIE,loginCookie,request.getContextPath());
  }
 catch (  Exception e) {
    if ((e.getMessage() != null) && (e.getMessage().indexOf("String_Node_Str") != -1)) {
      log.warn("String_Node_Str" + e.getMessage());
      errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername(),userForm.getEmail()));
      saveErrors(request,errors);
      return mapping.getInputForward();
    }
    e.printStackTrace();
    errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str"));
    while (e != null) {
      String msg=e.getMessage();
      if ((msg.indexOf("String_Node_Str") != -1) || (msg.indexOf("String_Node_Str") != -1)) {
        log.warn("String_Node_Str" + e.getMessage());
        errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername(),userForm.getEmail()));
        break;
      }
      errors.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",e.getMessage()));
      e=(Exception)e.getCause();
    }
    saveErrors(request,errors);
    return mapping.getInputForward();
  }
  ActionMessages messages=new ActionMessages();
  MessageResources resources=getResources(request);
  messages.add(ActionMessages.GLOBAL_MESSAGE,new ActionMessage("String_Node_Str",userForm.getUsername()));
  HttpSession session=request.getSession();
  session.setAttribute(Globals.MESSAGE_KEY,messages);
  session.setAttribute(Constants.REGISTERED,Boolean.TRUE);
  if (log.isDebugEnabled()) {
    log.debug("String_Node_Str" + userForm.getUsername() + "String_Node_Str");
  }
  StringBuffer msg=new StringBuffer();
  msg.append(resources.getMessage("String_Node_Str"));
  msg.append("String_Node_Str" + resources.getMessage("String_Node_Str"));
  msg.append("String_Node_Str" + userForm.getUsername() + "String_Node_Str");
  msg.append(resources.getMessage("String_Node_Str") + "String_Node_Str");
  msg.append(userForm.getPassword());
  msg.append("String_Node_Str" + RequestUtils.serverURL(request) + request.getContextPath());
  String subject=resources.getMessage("String_Node_Str");
  try {
    MailSender.sendTextMessage(Constants.DEFAULT_FROM,userForm.getEmail(),null,subject,msg.toString());
  }
 catch (  MessagingException me) {
    log.warn("String_Node_Str");
  }
  return mapping.findForward("String_Node_Str");
}