}

    @Test
    public void testReconnectHandleFailure() throws Exception {
        when(mockManager.getHandleForReconnect("/test/file.txt")).thenReturn(testHandle);

        // Create a test reconnector that fails
        TestHandleReconnector testReconnector = new TestHandleReconnector(mockManager, false);

        CompletableFuture<HandleInfo> future = testReconnector.reconnectHandle("/test/file.txt", new IOException("Network error"));

     * @throws UnknownHostException if the host cannot be resolved
     * @throws MalformedURLException if the URL is malformed
     * @throws DcerpcException if DCERPC initialization fails
     */
    public DcerpcPipeHandle(String url, final NtlmPasswordAuthentication auth)
            throws UnknownHostException, MalformedURLException, DcerpcException {
        binding = DcerpcHandle.parseBinding(url);

     * @param supplier Function to execute the batch of requests
     * @return List of results corresponding to the input requests
     * @throws BatchRequestException if any request in the batch fails
     */
    <REQ extends Request<?>, REP extends Result<REQ>> List<REP> requests(
            List<REQ> req, Function<List<REQ>, List<REP>> supplier);

    assertEquals("x", HostAndPort.fromString("x").requireBracketsForIPv6().getHost());
    assertEquals("x", HostAndPort.fromString("x:80").requireBracketsForIPv6().getHost());

    // Non-bracketed IPv6 fails.
    assertThrows(
        IllegalArgumentException.class,
        () -> HostAndPort.fromString("::1").requireBracketsForIPv6());
  }

  public void testToString() {
    // With ports.

    assertEquals("x", HostAndPort.fromString("x").requireBracketsForIPv6().getHost());
    assertEquals("x", HostAndPort.fromString("x:80").requireBracketsForIPv6().getHost());

    // Non-bracketed IPv6 fails.
    assertThrows(
        IllegalArgumentException.class,
        () -> HostAndPort.fromString("::1").requireBracketsForIPv6());
  }

  public void testToString() {
    // With ports.

        assertFalse(channelManager.isUseMultiChannel());

        try {
            channelManager.initializeMultiChannel();
            // Should not throw exception even if initialization fails
        } catch (Exception e) {
            // Expected in test environment without proper server setup
        }

        assertDoesNotThrow(() -> channelManager.shutdown());
    }

    @Test

   * this method should cause a call to {@link #notifyStarted()}, either during this method's run,
   * or after it has returned. If startup fails, the invocation should cause a call to {@link
   * #notifyFailed(Throwable)} instead.
   *
   * <p>This method should return promptly; prefer to do work on a different thread where it is

                if (logger.isDebugEnabled()) {
                    logger.debug("Silent token refresh failed: {}", e.getMessage());
                }
            }
            // For MSAL4J, if silent refresh fails, return true if token is still valid
            // Actual refresh will happen during next authentication request
            return true;
        }

        /**
         * Gets the Entra ID authentication result.

        UnsupportedOperationException.class,
        () -> collection.removeAll(MinimalCollection.of(e0())));
    expectUnchanged();
    assertTrue(collection.contains(e0()));
  }

  /*
   * AbstractCollection fails the removeAll(null) test when the subject
   * collection is empty, but we'd still like to test removeAll(null) when we
   * can. We split the test into empty and non-empty cases. This allows us to
   * suppress only the former.

        return new DisniMemoryRegion(buffer, access, endpoint);
    }

    /**
     * Initialize DiSNI components if not already initialized
     *
     * @throws IOException if initialization fails
     */
    private void ensureInitialized() throws IOException {
        if (!initialized) {
            try {
                // In a real implementation, this would initialize DiSNI: