/**
  * deletes the single RemoteStacktrace object identified by the key id passed in
  *
  * @param exceptionId
  * @return
  */
 public boolean deleteRemoteStacktrace(Long exceptionId) {
   boolean deleted = false;
   if (exceptionId != null) {
     RemoteStacktrace trace = traceDao.getByKey(exceptionId);
     if (trace != null) {
       traceDao.delete(trace);
       deleted = true;
     }
   }
   return deleted;
 }