@Mock
    private NameServiceClient nameServiceClient;

    /**
     * Sets up the mock objects before each test.
     * @throws CIFSException
     */
    @BeforeEach
    void setUp() throws CIFSException {
        ntlmServlet = new TestNtlmServlet();

        // Mock ServletConfig to provide initialization parameters
        Map<String, String> initParams = new HashMap<>();

    @Test
    @DisplayName("getDfsReferrals handles empty name via CIFSException")
    void getDfsReferrals_emptyName() throws Exception {
        String emptyName = "";
        doThrow(new jcifs.CIFSException("invalid dfs name")).when(transport)
                .getDfsReferrals(eq(ctx), eq(emptyName), any(), any(), anyInt());

        assertThrows(jcifs.CIFSException.class, () -> transport.getDfsReferrals(ctx, emptyName, "h", "d", 1));

import java.net.URL;
import java.net.UnknownHostException;
import java.util.Objects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.DfsReferralData;
import jcifs.NetbiosAddress;
import jcifs.RuntimeCIFSException;
import jcifs.SmbConstants;
import jcifs.SmbResourceLocator;
import jcifs.internal.util.StringUtil;

     */
    @Override
    public synchronized void close(final long lastWriteTime) throws CIFSException {
        closeInternal(lastWriteTime, true);
    }

    /**
     * @param lastWriteTime
     * @throws SmbException
     */
    void closeInternal(final long lastWriteTime, final boolean explicit) throws CIFSException {
        final SmbTreeHandleImpl t = this.tree;
        try {

 */
package jcifs.smb;

import java.util.Arrays;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSException;
import jcifs.internal.smb2.lease.DirectoryCacheScope;
import jcifs.internal.smb2.lease.DirectoryLeaseManager;
import jcifs.internal.smb2.lease.Smb2LeaseKey;
import jcifs.internal.smb2.lease.Smb2LeaseState;

/**

     * @return the created channel group
     * @throws CIFSException if channel creation fails
     */
    public ChannelGroup createChannels(String sessionId, List<InetAddress> serverAddresses) throws CIFSException {
        if (sessionId == null || sessionId.isEmpty()) {
            throw new CIFSException("Session ID cannot be null or empty");
        }

     * @param challenge the server challenge (may be null for some auth types)
     * @return authentication response data
     * @throws CIFSException if authentication fails
     */
    byte[] authenticate(CIFSContext context, byte[] challenge) throws CIFSException;

    /**
     * Gets the session key after successful authentication
     *
     * @return the session key or null if not available
     */

     *
     * @param resource the SMB resource to test
     * @return whether the given resource should be included
     * @throws CIFSException if an error occurs while accessing the resource
     */
    boolean accept(SmbResource resource) throws CIFSException;

        assertNull(ex.getMessage(), "Default message should be null");
        assertNull(ex.getCause(), "Default cause should be null");
        assertTrue(ex instanceof CIFSException, "Should be a CIFSException");
        assertTrue(ex instanceof IOException, "Should be an IOException");
    }

    @Test
    @DisplayName("Should create SpnegoException with message")
    void testWithMessage() {

import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSException;
import jcifs.ResourceFilter;
import jcifs.SmbConstants;
import jcifs.SmbResource;

@ExtendWith(MockitoExtension.class)
class ShareEnumIteratorTest {

    @Mock
    ResourceFilter filter;