verify(domainInfo.sid).encode(mockDeferredNdrBuffer); // Should be called with deferred buffer
    }

    @Test
    void testLsarDomainInfoEncodeNullReferents() throws NdrException {
        lsarpc.LsarDomainInfo domainInfo = new lsarpc.LsarDomainInfo();
        domainInfo.name = new rpc.unicode_string(); // Use real object