props.setProperty("jcifs.smb.client.password", "testpass");
        props.setProperty("jcifs.smb.client.domain", "testdomain");
        props.setProperty("jcifs.netbios.hostname", "testhost");
        props.setProperty("jcifs.netbios.scope", "");
        props.setProperty("jcifs.smb.client.connTimeout", "35000");
        props.setProperty("jcifs.smb.client.soTimeout", "35000");

        when(mockConfig.getResolveOrder()).thenReturn(Arrays.asList(ResolverType.RESOLVER_DNS)); // Only DNS, no broadcast
        when(mockConfig.getNetbiosHostname()).thenReturn("TESTHOST");
        when(mockConfig.getNetbiosScope()).thenReturn(null);
        when(mockConfig.getNetbiosCachePolicy()).thenReturn(30); // Short cache
        when(mockConfig.getWinsServers()).thenReturn(new InetAddress[0]);

        SmbTransportImpl mockTransport = Mockito.mock(SmbTransportImpl.class);
        Mockito.when(mockTransport.acquire()).thenReturn(mockTransport);

        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        int threadCount = 10;
        int operationsPerThread = 200;
        ExecutorService executor = Executors.newFixedThreadPool(threadCount);