Program: 174439
Project: 174439
Buggy source:
@POST @Path("String_Node_Str") public void taskAnswer(@PathParam("String_Node_Str") String taskId,@QueryParam("String_Node_Str") final String conversationId,AgentDto agent){
  LOGGER.debug("String_Node_Str",taskId);
  LOGGER.debug("String_Node_Str",agent);
  boolean wouldConnectAgent=true;
  NexMoConversation conversation=null;
  do {
    conversation=conversationService.getConversation(conversationId);
    if (null == conversation) {
      LOGGER.error("String_Node_Str",conversationId);
      wouldConnectAgent=false;
      break;
    }
    Endpoint epAgent=NexMoModelFactory.createEndpoint(agent.getAddress());
    Endpoint epFrom=NexMoModelFactory.createEndpoint(configuration.getAssociatedPhone().toLog());
    String answerUrl=configuration.getCallbackBaseUrl() + "String_Node_Str" + conversation.getId();
    Call callRequest=new Call(epAgent,epFrom,answerUrl);
    try {
      CallEvent callEvent=nexMoService.getVoiceClient().createCall(callRequest);
      NexMoCall callee=new NexMoCall(callEvent.getUuid(),callEvent.getConversationUuid());
      callee.setDirection(callEvent.getDirection());
      callee.setStatus(callEvent.getStatus());
      UpdateNexMoConversationArg updateArg=new UpdateNexMoConversationArg(NexMoConversationStatus.CONNECTING);
      updateArg.setAgent(callee);
      conversationService.updateConversation(conversationId,updateArg);
    }
 catch (    IOException|NexmoClientException e) {
      LOGGER.error("String_Node_Str",e.getLocalizedMessage());
      wouldConnectAgent=false;
      e.printStackTrace();
    }
catch (    Exception ex) {
      LOGGER.error("String_Node_Str",ex.getLocalizedMessage());
      wouldConnectAgent=false;
      ex.printStackTrace();
    }
  }
 while (false);
  if (!wouldConnectAgent) {
    if (conversation != null) {
      UpdateNexMoConversationArg updateArg=new UpdateNexMoConversationArg(NexMoConversationStatus.STARTED);
      conversationService.updateConversation(conversation.getId(),updateArg);
    }
    UpdateTaskArg updateArg=new UpdateTaskArg();
    updateArg.setState(TaskState.completed);
    try {
      taskServiceClient.update(updateArg);
    }
 catch (    BadValueException|NotFoundException e1) {
      LOGGER.error("String_Node_Str",e1.getLocalizedMessage());
      e1.printStackTrace();
    }
catch (    Exception e2) {
      LOGGER.error("String_Node_Str",e2.getLocalizedMessage());
      e2.printStackTrace();
    }
  }
}

Fixed version (ground truth):
@POST @Path("String_Node_Str") public void taskAnswer(@PathParam("String_Node_Str") String taskId,@QueryParam("String_Node_Str") final String conversationId,AgentDto agent){
  LOGGER.debug("String_Node_Str",taskId);
  LOGGER.debug("String_Node_Str",agent);
  boolean wouldConnectAgent=true;
  NexMoConversation conversation=null;
  do {
    conversation=conversationService.getConversation(conversationId);
    if (null == conversation) {
      LOGGER.error("String_Node_Str",conversationId);
      wouldConnectAgent=false;
      break;
    }
    Endpoint epAgent=NexMoModelFactory.createEndpoint(agent.getAddress());
    Endpoint epFrom=NexMoModelFactory.createEndpoint(configuration.getAssociatedPhone().toLog());
    String answerUrl=configuration.getCallbackBaseUrl() + "String_Node_Str" + conversation.getId();
    Call callRequest=new Call(epAgent,epFrom,answerUrl);
    try {
      CallEvent callEvent=nexMoService.getVoiceClient().createCall(callRequest);
      NexMoCall callee=new NexMoCall(callEvent.getUuid(),callEvent.getConversationUuid());
      callee.setDirection(callEvent.getDirection());
      callee.setStatus(callEvent.getStatus());
      UpdateNexMoConversationArg updateArg=new UpdateNexMoConversationArg(NexMoConversationStatus.CONNECTING);
      updateArg.setAgent(callee);
      conversationService.updateConversation(conversationId,updateArg);
    }
 catch (    IOException|NexmoClientException e) {
      LOGGER.error("String_Node_Str",e.getLocalizedMessage());
      wouldConnectAgent=false;
      e.printStackTrace();
    }
catch (    Exception ex) {
      LOGGER.error("String_Node_Str",ex.getLocalizedMessage());
      wouldConnectAgent=false;
      ex.printStackTrace();
    }
  }
 while (false);
  if (!wouldConnectAgent) {
    if (conversation != null) {
      UpdateNexMoConversationArg updateArg=new UpdateNexMoConversationArg(NexMoConversationStatus.STARTED);
      conversationService.updateConversation(conversation.getId(),updateArg);
    }
    UpdateTaskArg updateArg=new UpdateTaskArg();
    updateArg.setState(TaskState.completed);
    try {
      RouterObjectId taskObjectId=new RouterObjectId(taskId,configuration.getCommsRouterId());
      taskServiceClient.update(updateArg,taskObjectId);
    }
 catch (    BadValueException|NotFoundException e1) {
      LOGGER.error("String_Node_Str",e1.getLocalizedMessage());
      e1.printStackTrace();
    }
catch (    Exception e2) {
      LOGGER.error("String_Node_Str",e2.getLocalizedMessage());
      e2.printStackTrace();
    }
  }
}