Program: 79842
Project: 79842
Buggy source:
@RequestMapping(value="String_Node_Str",method=RequestMethod.POST,headers="String_Node_Str") RfResponseDTO requestProcessor(@RequestBody RfRequestDTO rfRequestDTO){
  Conversation existingConversation=null;
  Conversation conversationForLogging=null;
  if (rfRequestDTO == null) {
    return null;
  }
 else   if (rfRequestDTO.getId() != null && !rfRequestDTO.getId().isEmpty()) {
    RfRequest rfRequest=rfRequestRepository.findOne(rfRequestDTO.getId());
    String conversationId=rfRequest.getConversationId();
    existingConversation=conversationRepository.findOne(conversationId);
  }
  long startTime=System.currentTimeMillis();
  RfResponseDTO result=genericHandler.processHttpRequest(rfRequestDTO);
  long endTime=System.currentTimeMillis();
  long duration=endTime - startTime;
  conversationForLogging=ConversationConverter.convertToEntity(rfRequestDTO,result);
  rfRequestRepository.save(conversationForLogging.getRfRequest());
  rfResponseRepository.save(conversationForLogging.getRfResponse());
  conversationForLogging.setDuration(duration);
  try {
    conversationForLogging=conversationRepository.save(conversationForLogging);
    conversationForLogging.getRfRequest().setConversationId(conversationForLogging.getId());
    rfRequestRepository.save(conversationForLogging.getRfRequest());
    if (existingConversation != null) {
      existingConversation.setRfRequest(conversationForLogging.getRfRequest());
      existingConversation.setRfResponse(conversationForLogging.getRfResponse());
      existingConversation.setDuration(duration);
    }
  }
 catch (  InvalidDataAccessResourceUsageException e) {
    throw new ApiException("String_Node_Str",e);
  }
  ConversationDTO conversationDTO=new ConversationDTO();
  conversationDTO.setDuration(duration);
  result.setItemDTO(conversationDTO);
  return result;
}

Fixed version (ground truth):
@RequestMapping(value="String_Node_Str",method=RequestMethod.POST,headers="String_Node_Str") RfResponseDTO requestProcessor(@RequestBody RfRequestDTO rfRequestDTO){
  Conversation existingConversation=null;
  Conversation conversationForLogging=null;
  if (rfRequestDTO == null) {
    return null;
  }
 else   if (rfRequestDTO.getId() != null && !rfRequestDTO.getId().isEmpty()) {
    RfRequest rfRequest=rfRequestRepository.findOne(rfRequestDTO.getId());
    String conversationId=rfRequest.getConversationId();
    existingConversation=conversationRepository.findOne(conversationId);
  }
  long startTime=System.currentTimeMillis();
  RfResponseDTO result=genericHandler.processHttpRequest(rfRequestDTO);
  long endTime=System.currentTimeMillis();
  long duration=endTime - startTime;
  conversationForLogging=ConversationConverter.convertToEntity(rfRequestDTO,result);
  rfRequestRepository.save(conversationForLogging.getRfRequest());
  rfResponseRepository.save(conversationForLogging.getRfResponse());
  conversationForLogging.setDuration(duration);
  conversationForLogging.setCreatedDate(new Date());
  conversationForLogging.setLastModifiedDate(new Date());
  try {
    conversationForLogging=conversationRepository.save(conversationForLogging);
    conversationForLogging.getRfRequest().setConversationId(conversationForLogging.getId());
    rfRequestRepository.save(conversationForLogging.getRfRequest());
    if (existingConversation != null) {
      existingConversation.setRfRequest(conversationForLogging.getRfRequest());
      existingConversation.setRfResponse(conversationForLogging.getRfResponse());
      existingConversation.setDuration(duration);
    }
  }
 catch (  InvalidDataAccessResourceUsageException e) {
    throw new ApiException("String_Node_Str",e);
  }
  ConversationDTO conversationDTO=new ConversationDTO();
  conversationDTO.setDuration(duration);
  result.setItemDTO(conversationDTO);
  return result;
}