private Configuration configuration;

    /**
     * Create an authenticator using the JAAS service <code>jcifs</code>
     *
     * This will require that a keytab is configured in this service.
     *
     *
     */
    public JAASAuthenticator() {
        this("jcifs");
    }

    /**
     * Create an authenticator using the given JAAS service
     *

 * TCP memory region implementation.
 *
 * For TCP fallback, memory regions are just wrappers around
 * ByteBuffers since no real RDMA registration is needed.
 */
public class TcpMemoryRegion extends RdmaMemoryRegion {

    private static final AtomicInteger keyGenerator = new AtomicInteger(1000);

    /**
     * Create new TCP memory region
     *
     * @param buffer memory buffer
     * @param access access permissions (ignored for TCP)

    /**
     * The port number for the web authentication.
     */
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer port;

    /**
     * The authentication realm.
     */
    @Size(max = 100)
    public String authRealm;

    /**
     * The protocol scheme (http, https).
     */
    @Size(max = 10)
    public String protocolScheme;

    /**

        // Build a sample Kerberos EncData structure
        ASN1EncodableVector vector = new ASN1EncodableVector();
        vector.add(new DERTaggedObject(2, new DERGeneralString("TEST.REALM")));

        ASN1EncodableVector principalVector = new ASN1EncodableVector();
        principalVector.add(new DERTaggedObject(0, new ASN1Integer(1))); // name-type

        if (!initialized) {
            try {
                // In a real implementation, this would initialize DiSNI:
                // endpointGroup = new RdmaActiveEndpointGroup<DisniRdmaEndpoint>(
                //     1000, false, 128, 4, 128);
                // endpointGroup.init(new DisniRdmaEndpointFactory());

                // For now, we'll just create placeholder objects
                endpointGroup = new Object();

    }

    @Test
    void testGetEntriesWithSingleShare() throws Exception {
        // Create a single ShareInfo1 object
        srvsvc.ShareInfo1 shareInfo = new srvsvc.ShareInfo1();
        shareInfo.netname = "SingleShare";
        shareInfo.type = 2;
        shareInfo.remark = "Single share remark";

        // Create ShareInfoCtr1 with one share
        srvsvc.ShareInfoCtr1 shareInfoCtr1 = new srvsvc.ShareInfoCtr1();

    private static final Map<ByteBuffer, Long> bufferAddresses = new ConcurrentHashMap<>();

    // DiSNI objects - would be actual DiSNI types in real implementation
    private final Object endpoint; // RdmaActiveEndpoint
    private Object memoryRegister; // IbvMr (memory register)

    /**
     * Create new DiSNI memory region
     *
     * @param buffer memory buffer to register
     * @param access access permissions

    private int originalLevel;

    @BeforeEach
    void setUp() throws Exception {
        // Save original state
        originalErr = System.err;
        originalLevel = LogStream.level;

        // Create test stream
        testOutput = new ByteArrayOutputStream();
        testStream = new PrintStream(testOutput);

        // Reset LogStream instance using reflection
        resetLogStreamInstance();
    }

    SmbTransport transport;

    // static helper that returns the mocked transport. The real class
    // performs several other operations, but for the purpose of the test
    // we intercept the factory call.
    private MockedStatic<SmbTransport> smbtStatic;

    @BeforeEach
    void setUp() throws Exception {
        // Create a real NtlmPasswordAuthentication instance

                }
            }
        }
    }

    @Override
    public void close() {
        stop();
    }

    /**
     * Helper method to create a complete mock service address
     *
     * @return formatted address string for RPC connections
     */
    public String getServiceAddress() {
        try {