Returning the status of a task executed in asynchronous mode

MetaServletCaller.bat --tac-url=http://localhost:8080/org.talend.administrator/ 
--json-params={"actionName":"runTask","authPass":"admin","authUser":"admin@company.com", 
"mode":"asynchronous","taskId":"2502"} --format-output

{
  "execRequestId":  "1406817216723_97nsV",
   "executionTime": {
     "millis": 1069,
     "seconds": 1
  },
   "returnCode": 0
}

MetaServletCaller.bat --tac-url=http://localhost:8080/org.talend.administrator/ 
--json-params={"actionName":"getTaskExecutionStatus","authPass":"admin",
"authUser":"admin@company.com","execRequestId": "1406817216723_97nsV"} --format-output

{
  "execBasicStatus":  "RUNNING",
   "execDetailedStatus":  "RUNNING",
   "execDetailedStatusLabel":  "Running...",
   "executionTime": {
     "millis": 309,
     "seconds": 0
  },
   "returnCode": 0
}

{
  "execBasicStatus":  "ERROR",
   "execDetailedStatus":  "JOB_ERROR",
   "execDetailedStatusLabel":  "Job ended
        with error(s)",
   "executionTime": {
     "millis": 300,
     "seconds": 0
  },
   "jobExitCode": 1,
   "returnCode": 0
}