code: protected void unsetRRSXAResourceFactory(ServiceReference<Object> ref) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              Tr.debug(tc, "unsetRRSXAResourceFactory", ref);
          rrsXAResFactorySvcRef.unsetReference(ref);
      }
docs: Declarative Services method for unsetting the RRS XA resource factory service implementation reference.
  
  @param ref reference to the service