/** The next DFS referral in the chain */
    DfsReferral next;
    /** Map containing DFS referral entries */
    Map map;
    /** The cache key for this referral */
    String key = null;

    /**
     * Constructs a new DfsReferral instance
     */
    public DfsReferral() {
        this.next = this;
    }

    void append(final DfsReferral dr) {
        dr.next = next;
        next = dr;
    }

 *
 *
 * <p>This class is intended for internal use.</p>
 */
public class DfsReferral extends SmbException {

    /**
     *
     */
    private static final long serialVersionUID = 1486630733410281686L;

    /** The underlying DFS referral data */
    private final DfsReferralData data;

    /**
     * Constructs a DfsReferral with the specified referral data
     *
     * @param data the DFS referral data

        // Given
        DfsReferral referral = new DfsReferral();

        // When / Then
        assertNotNull(referral, "The DfsReferral object should not be null.");
        assertEquals(referral, referral.next, "The 'next' property should point to the object itself.");
    }

    /**
     * Tests the append method of the DfsReferral class.

        when(mockData.toString()).thenReturn(expectedToString);

        // Create a DfsReferral instance with the mock data
        DfsReferral dfsReferral = new DfsReferral(mockData);

        // Verify that toString() returns the expected string from the mock data object
        assertEquals(expectedToString, dfsReferral.toString(),

class DfsTest {

    @Mock
    private NtlmPasswordAuthentication auth;

    @Mock
    private SmbTransport smbTransport;

    @Mock
    private UniAddress uniAddress;

    @Mock
    private DfsReferral dfsReferral;

    private Dfs dfs;
    private TestDfs testDfs;

    private MockedStatic<LogStream> logStreamMockedStatic;
    private MockedStatic<UniAddress> uniAddressMockedStatic;

            return canonical;
        }

        @Override
        public DfsReferralData getDfsReferral() {
            return dfsReferral;
        }

        public void setDfsReferral(DfsReferralData dfsReferral) {
            this.dfsReferral = dfsReferral;
        }

        @Override
        public String getUNCPath() {
            return null;
        }

        @Override