Program: 115060
Project: 115060
Buggy source:
@Override public void run(){
  String hostname="String_Node_Str";
  String url="String_Node_Str";
  if (message.contains("String_Node_Str") || message.contains("String_Node_Str") || emailSubject.contains("String_Node_Str")|| emailSubject.contains("String_Node_Str")) {
    participantPortalRegistrar=new ParticipantPortalRegistrar();
    try {
      hostname=participantPortalRegistrar.getStudyHost(studyBean.getOid());
    }
 catch (    Exception e) {
      e.printStackTrace();
    }
    url=hostname.replaceAll("String_Node_Str","String_Node_Str");
    message=message.replaceAll("String_Node_Str",url);
    emailSubject=emailSubject.replaceAll("String_Node_Str",url);
  }
  for (  String email : listOfEmails) {
    if (email.trim().equals("String_Node_Str")) {
      pDTO=getParticipantInfo(uBean);
      if (pDTO != null) {
        String msg=null;
        String eSubject=null;
        msg=message.replaceAll("String_Node_Str",pDTO.getAccessCode());
        msg=msg.replaceAll("String_Node_Str",pDTO.getfName());
        eSubject=emailSubject.replaceAll("String_Node_Str",pDTO.getAccessCode());
        eSubject=eSubject.replaceAll("String_Node_Str",pDTO.getfName());
        String loginUrl=url + "String_Node_Str" + pDTO.getAccessCode()+ "String_Node_Str";
        msg=msg.replaceAll("String_Node_Str",loginUrl);
        eSubject=eSubject.replaceAll("String_Node_Str",loginUrl);
        msg=msg.replaceAll("String_Node_Str","String_Node_Str");
        eSubject=eSubject.replaceAll("String_Node_Str","String_Node_Str");
        pDTO.setMessage(msg);
        pDTO.setEmailSubject(eSubject);
        try {
          participantPortalRegistrar.sendEmailThruMandrillViaOcui(pDTO);
        }
 catch (        Exception e) {
          e.getStackTrace();
        }
        System.out.println(pDTO.getMessage() + "String_Node_Str" + pDTO.getEmailAccount()+ "String_Node_Str");
      }
 else {
        pDTO=new ParticipantDTO();
        String msg=null;
        msg=message.replaceAll("String_Node_Str","String_Node_Str");
        msg=msg.replaceAll("String_Node_Str","String_Node_Str");
        msg=msg.replaceAll("String_Node_Str","String_Node_Str");
        msg=msg.replaceAll("String_Node_Str","String_Node_Str");
        pDTO.setMessage(msg);
        String eSubject=null;
        eSubject=emailSubject.replaceAll("String_Node_Str","String_Node_Str");
        eSubject=eSubject.replaceAll("String_Node_Str","String_Node_Str");
        eSubject=eSubject.replaceAll("String_Node_Str","String_Node_Str");
        eSubject=eSubject.replaceAll("String_Node_Str","String_Node_Str");
        pDTO.setEmailSubject(eSubject);
      }
    }
 else {
      pDTO.setEmailAccount(email.trim());
      System.out.println();
      execute(ExecutionMode.SAVE,ruleActionBean,pDTO);
      System.out.println(pDTO.getMessage() + "String_Node_Str" + pDTO.getEmailAccount()+ "String_Node_Str");
    }
  }
}

Fixed version (ground truth):
@Override public void run(){
  String hostname="String_Node_Str";
  String url="String_Node_Str";
  participantPortalRegistrar=new ParticipantPortalRegistrar();
  try {
    hostname=participantPortalRegistrar.getStudyHost(studyBean.getOid());
  }
 catch (  Exception e) {
    e.printStackTrace();
  }
  url=hostname.replaceAll("String_Node_Str","String_Node_Str");
  message=message.replaceAll("String_Node_Str",url);
  emailSubject=emailSubject.replaceAll("String_Node_Str",url);
  for (  String email : listOfEmails) {
    if (email.trim().equals("String_Node_Str")) {
      pDTO=getParticipantInfo(uBean);
      if (pDTO != null) {
        String msg=null;
        String eSubject=null;
        msg=message.replaceAll("String_Node_Str",pDTO.getAccessCode());
        msg=msg.replaceAll("String_Node_Str",pDTO.getfName());
        eSubject=emailSubject.replaceAll("String_Node_Str",pDTO.getAccessCode());
        eSubject=eSubject.replaceAll("String_Node_Str",pDTO.getfName());
        String loginUrl=url + "String_Node_Str" + pDTO.getAccessCode()+ "String_Node_Str";
        msg=msg.replaceAll("String_Node_Str",loginUrl);
        eSubject=eSubject.replaceAll("String_Node_Str",loginUrl);
        msg=msg.replaceAll("String_Node_Str","String_Node_Str");
        eSubject=eSubject.replaceAll("String_Node_Str","String_Node_Str");
        pDTO.setMessage(msg);
        pDTO.setEmailSubject(eSubject);
        try {
          participantPortalRegistrar.sendEmailThruMandrillViaOcui(pDTO);
        }
 catch (        Exception e) {
          e.getStackTrace();
        }
        System.out.println(pDTO.getMessage() + "String_Node_Str" + pDTO.getEmailAccount()+ "String_Node_Str");
      }
    }
 else {
      if (pDTO == null)       pDTO=buildNewPDTO();
      pDTO.setEmailAccount(email.trim());
      System.out.println();
      execute(ExecutionMode.SAVE,ruleActionBean,pDTO);
      System.out.println(pDTO.getMessage() + "String_Node_Str" + pDTO.getEmailAccount()+ "String_Node_Str");
    }
  }
}