private String url;
    private SmbAuthException sae;

    /**
     * Set the default <code>NtlmAuthenticator</code>. Once the default authenticator is set it cannot be changed. Calling
     * this metho again will have no effect.
     *
     * @param a the authenticator to set as default
     */

    public synchronized static void setDefault(final NtlmAuthenticator a) {
        if (auth != null) {
            return;
        }

    }

    /**
     * Tests the toString method of the DfsReferral class.
     * It verifies that the toString method returns a string representation of the object
     * that accurately reflects its properties.
     */
    @Test
    void testToString() {
        // Given
        DfsReferral referral = new DfsReferral();
        referral.pathConsumed = 20;
        referral.server = "testServer";

        // Then
        assertEquals(ServerMessageBlock.SMB_COM_CLOSE, smbComClose.getCommand());
        // Private fields are not directly accessible, but we can check their effect in other methods.
    }

    /**
     * Test method for {@link jcifs.internal.smb1.com.SmbComClose#writeParameterWordsWireFormat(byte[], int)}.
     */
    @Test
    public void testWriteParameterWordsWireFormat() {

        verify(file, times(1)).getAttributes();
    }

    @Test
    public void testAcceptIgnoresWildcard() throws Exception {
        // Wildcard shouldn't affect accept logic.
        DosFileFilter customFilter = new DosFileFilter("*.txt", SmbFile.ATTR_DIRECTORY);
        SmbFile file = mock(SmbFile.class);
        when(file.getAttributes()).thenReturn(SmbFile.ATTR_DIRECTORY);

        String retrievedPassword = authenticator.getPassword();
        assertEquals("charArrayPassword", retrievedPassword, "Password should match");

        // Modify original array - should not affect stored password
        passwordChars[0] = 'X';
        String retrievedPassword2 = authenticator.getPassword();

            assertFalse(stream.markSupported());

            assertEquals('A', stream.read());
            assertEquals('B', stream.read());

            // Mark is not supported, so calling mark has no effect
            stream.mark(10);

            assertEquals('C', stream.read());
            assertEquals('D', stream.read());

            // Reset will throw IOException because mark is not supported

                | NegTokenInit.SEQUENCE_CHECKING | NegTokenInit.ANONYMITY | NegTokenInit.CONFIDENTIALITY | NegTokenInit.INTEGRITY;
        assertEquals(expected, flags);
    }

    @Test
    @DisplayName("isEstablished reflects underlying context state")
    void isEstablished_behavior() throws Exception {
        when(gssContext.isEstablished()).thenReturn(true);
        assertTrue(ctx.isEstablished());

 * <a href="../../resolver.html">Setting Name Resolution Properties</a>
 * and the <code>jcifs.resolveOrder</code> property. Changing
 * jCIFS name resolution properties can greatly affect the behavior of
 * the client and may be necessary for proper operation.
 * <p>
 * This class should be used in favor of {@code InetAddress} to resolve
 * hostnames on LANs and WANs that support a mixture of NetBIOS/WINS and

    @BeforeEach
    void resetMocks() {
        Mockito.reset(session, transport, tree);
    }

    // Happy path: isInUse returns the mocked state
    @ParameterizedTest
    @DisplayName("isInUse reflects current mocked state")
    @ValueSource(booleans = { true, false })
    void isInUse_variants(boolean inUse) {
        when(session.isInUse()).thenReturn(inUse);

        boolean result = session.isInUse();

        assertTrue(ex.getMessage().contains("failed"));
        verify(transport).hasCapability(42);
    }

    // Edge: disconnected status toggles
    @ParameterizedTest
    @DisplayName("isDisconnected reflects current mocked state")
    @ValueSource(booleans = { true, false })
    void isDisconnected_states(boolean disconnected) {
        when(transport.isDisconnected()).thenReturn(disconnected);