static Stream<Arguments> portSpecs() {
        return Stream.of(
                // spec, expectedPort
                Arguments.of("smb://server/share", SmbConstants.DEFAULT_PORT), Arguments.of("smb://server:445/share", 445),
                Arguments.of("smb://server:139/share", 139));
    }

    @ParameterizedTest(name = "parseURL: {0} -> port {1}")
    @MethodSource("portSpecs")

                    long threadStart = System.nanoTime();
                    for (int i = 0; i < operationsPerThread; i++) {
                        try {
                            String shareName = "share" + (threadId % 5); // Use 5 different shares

                            // Test concurrent tree operations (should be thread-safe with CopyOnWriteArrayList)
                            long opStart = System.nanoTime();

    public int pathConsumed;
    /** Time to live for this referral in seconds */
    public long ttl;
    /** Target server for this referral */
    public String server; // Server
    /** Target share for this referral */
    public String share; // Share
    /** The complete UNC path link */
    public String link;
    /** Path relative to tree from which this referral was thrown */

        void testGetShare() {
            // Act & Assert
            assertEquals("share", smbFile.getShare());
        }

        @Test
        void testGetUncPath() {
            // Arrange
            doReturn("\\localhost\share\file.txt").when(smbFile).getUncPath();

            // Act & Assert
            assertEquals("\\localhost\share\file.txt", smbFile.getUncPath());
        }
    }

    @Nested

    private final List<StackTraceElement[]> releases;

    private DfsReferralData treeReferral;

    SmbTreeImpl(final SmbSessionImpl session, final String share, final String service) {
        this.session = session.acquire();
        this.share = share.toUpperCase();
        if (service != null && !service.startsWith("??")) {
            this.service = service;
        }
        this.service0 = this.service;

        t1.url = "smb://server1/share/file.txt";

        t2.numThreads = 5;
        t2.url = "smb://server2/share/file.txt";

        // Verify independence
        assertEquals(2, t1.numThreads, "t1 should have its own numThreads value");
        assertEquals(5, t2.numThreads, "t2 should have its own numThreads value");
        assertEquals("smb://server1/share/file.txt", t1.url, "t1 should have its own URL");

            throw new SmbException("Invalid server name in UNC path");
        }

        // Validate share name
        String share = parts[1];
        if (share.isEmpty() || share.endsWith("$") && share.length() == 1) {
            throw new SmbException("Invalid share name in UNC path");
        }
    }

    /**
     * Validate individual path components
     */

                () -> new SmbFileHandleImpl(cfg, new byte[] { 1, 2 }, null, "//server/share", 0, 0, 0, 0, 0L));
    }

    @Test
    @DisplayName("Constructor with null cfg throws NPE")
    void constructor_nullCfg_throwsNPE() {
        stubValidTree(7L, true, true);
        assertThrows(NullPointerException.class, () -> new SmbFileHandleImpl(null, 42, tree, "//server/share", 0, 0, 0, 0, 0L));
    }

    @Test

        @ParameterizedTest
        @DisplayName("Should calculate correct size for various path lengths")
        @CsvSource({ "'', 4", "'a', 6", "'\\\\', 8", "'\\\\server', 20", "'\\\\server\\share', 32", "'\\\\server\\share\\path', 42",
                "'\\\\server\\share\\very\\long\\path\\with\\many\\segments', 100" })
        void testSizeCalculation(String path, int expectedSize) {
            buffer = new DfsReferralRequestBuffer(path, 3);

    private int pathConsumed;
    private long ttl;
    private String server; // Server
    private String share; // Share
    private String link;
    private String path; // Path relative to tree from which this referral was thrown

    private long expiration;
    private int rflags;

    private boolean resolveHashes;

    private DfsReferralDataImpl next;