code: private EndpointActivationServiceInfo createEndpointActivationServiceInfo(String id) {
          EndpointActivationServiceInfo easInfo = endpointActivationServices.get(id);
          if (easInfo == null) {
              easInfo = new EndpointActivationServiceInfo(id);
              endpointActivationServices.put(id, easInfo);
          }
          return easInfo;
      }
docs: Gets an existing EndpointActivationServiceInfo with the specified id, or
  creates one and inserts it into {@link #endpointActivationServices}.
  
  <p>Caller must hold a lock on this object.