code: @Override
      public XAResource getRRSXAResource(String activationSpecId, Xid xid) throws XAResourceNotAvailableException {
          RRSXAResourceFactory factory = rrsXAResFactorySvcRef.getService();
          if (factory == null) {
              return null;
          } else {
              return factory.getTwoPhaseXAResource(xid);
          }
  
      }
docs: Method to get the XAResource corresponding to an ActivationSpec from the RRSXAResourceFactory
  
  @param activationSpecId The id of the ActivationSpec
  @param xid Transaction branch qualifier
  @return the XAResource