public void testOpenOplocked () throws UnknownHostException, IOException {
        CIFSContext c = getContext();
        c = withTestNTLMCredentials(c);
        try ( SmbTransportInternal trans = c.getTransportPool().getSmbTransport(c, getTestServer(), 0, false, true)
                .unwrap(SmbTransportInternal.class);
              SmbSession sess = trans.unwrap(SmbTransportInternal.class).getSmbSession(c, getTestServer(), null);