}
    }

    /**
     * Opens a connection to the specified URL.
     *
     * @param u the URL
     * @return the HttpURLConnection
     * @throws IOException if an I/O exception occurs
     */
    protected HttpURLConnection open(final URL u) throws IOException {
        final HttpURLConnection connection = (HttpURLConnection) (proxy != null ? u.openConnection(proxy) : u.openConnection());

        when(mockSid.unwrap(sid_t.class)).thenReturn(mockSidT);
        testSids = new jcifs.SID[] { mockSid };

        // Act & Assert - Constructor accepts null, no exception thrown
        assertDoesNotThrow(() -> {
            new MsrpcLookupSids(null, testSids);
        });
    }

    @Test
    void constructor_shouldThrowExceptionWithNullSids() {

            // Assert - should not throw exception when file exists
        }
    }

    @Nested
    class WhenHandlingConnections {

        @Test
        void testConnect() throws IOException {
            // Arrange
            doNothing().when(smbFile).connect();

            // Act
            smbFile.connect();

            // Assert - should not throw exception
        }

        indexUpdater.interrupt();
        indexUpdater.join(2000);

        // Test passes if no exception is thrown and thread terminates properly
        assertFalse("Thread should have terminated", indexUpdater.isAlive());
    }

    // Test run with component not available
    public void test_run_componentNotAvailable() throws Exception {
        final List<String> sessionIdList = Arrays.asList("session1");

    handler: Handler,
    length: Int,
    flags: Int,
    streamId: Int,
  ) {
    if (length != 5) throw IOException("TYPE_PRIORITY length: $length != 5")
    if (streamId == 0) throw IOException("TYPE_PRIORITY streamId == 0")
    readPriority(handler, streamId)
  }

  @Throws(IOException::class)
  private fun readPriority(
    handler: Handler,
    streamId: Int,
  ) {
    val w1 = source.readInt()

    void testGetByNameWithLocalhost() throws UnknownHostException {
        // When
        Address address = nameServiceClient.getByName("localhost");

        // Then
        assertNotNull(address, "Should return address for localhost");
    }

    @Test
    @DisplayName("Should handle IP address in getByName")
    void testGetByNameWithIPAddress() throws UnknownHostException {
        // When

    void ensureDFSResolved_throws() throws Exception {
        // Arrange: configure the mock to throw
        doThrow(new CIFSException("DFS resolution failed")).when(handle).ensureDFSResolved();

        // Act + Assert: exception is propagated with message
        CIFSException ex = assertThrows(CIFSException.class, () -> handle.ensureDFSResolved());

    void parseSetsMechanismToken() throws IOException {
        TestSpnegoToken t = new TestSpnegoToken();
        byte[] raw = new byte[] { 5, 6 };
        t.parse(raw);
        assertTrue(t.isParsed(), "parse should mark parsed");
        assertArrayEquals(raw, t.getMechanismToken(), "parse should set mechanismToken");
    }

    @Test
    @DisplayName("parse throws IOException on null input")
    void parseThrowsOnNull() {

     * Establish RDMA connection
     */
    public abstract void connect() throws IOException;
    
    /**
     * Send data using RDMA
     */
    public abstract void send(ByteBuffer data, RdmaMemoryRegion region) throws IOException;
    
    /**
     * Receive data using RDMA  
     */
    public abstract ByteBuffer receive(int timeout) throws IOException;
    
    /**
     * Perform RDMA read operation

    SomeCheckedException cause = new SomeCheckedException();
    SomeChainingException thrown = new SomeChainingException(cause);

    assertThat(thrown).hasCauseThat().isSameInstanceAs(cause);
    assertThat(getCauseAs(thrown, SomeCheckedException.class)).isSameInstanceAs(cause);
    assertThat(getCauseAs(thrown, Exception.class)).isSameInstanceAs(cause);

    ClassCastException expected =
        assertThrows(