}

    @Test
    void testNullStreamHandling() {
        // Test that passing null to setInstance throws NullPointerException
        // This is expected behavior as PrintStream doesn't accept null
        assertThrows(NullPointerException.class, () -> {
            LogStream.setInstance(null);
        });
    }

    @Test
    void testPrintStreamDelegation() {

     *
     * @param file the SMB file to test for inclusion
     * @return true if the file should be included, false otherwise
     * @throws SmbException if an error occurs while accessing the file
     */
    boolean accept(SmbFile file) throws SmbException;

     * @param name the resource name to test
     * @return whether the given filename should be included
     * @throws CIFSException if an error occurs while accessing the resource
     */
    boolean accept(SmbResource parent, String name) throws CIFSException;

* Обробка даних:
    * Наприклад, якщо отримано файл, який потрібно обробити довготривалим процесом, можна повернути відповідь "Accepted" ("Прийнято", HTTP 202) і виконати обробку файлу у фоні.

## Використання `BackgroundTasks`

* `allow_headers` - A list of HTTP request headers that should be supported for cross-origin requests. Defaults to `[]`. You can use `['*']` to allow all headers. The `Accept`, `Accept-Language`, `Content-Language` and `Content-Type` headers are always allowed for <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests" class="external-link" rel="noopener" target="_blank">simple CORS requests</a>.

    AtomicInteger deliveries = new AtomicInteger();
    EventBus bus = new EventBus();
    bus.register(
        new Object() {
          @Subscribe
          public void accept(String str) {
            holder.set(str);
            deliveries.incrementAndGet();
          }
        });

    String EVENT = "Hello!";
    bus.post(EVENT);

            - cookies
            - client
            - state
            - url_for
            - client_state
            - application_state
            - receive
            - send
            - accept
            - receive_text
            - receive_bytes
            - receive_json
            - iter_text
            - iter_bytes
            - iter_json
            - send_text
            - send_bytes

            if (nt != -1) {
                consumer.accept(dos, nt);
            }
        }

        // Assert: consumer called exactly for the 3 known codes, with the right arguments
        ArgumentCaptor<Integer> dosCaptor = ArgumentCaptor.forClass(Integer.class);
        ArgumentCaptor<Integer> ntCaptor = ArgumentCaptor.forClass(Integer.class);
        verify(consumer, times(3)).accept(dosCaptor.capture(), ntCaptor.capture());

final class Platform {
  static boolean isInstanceOfThrowableClass(Throwable t, Class<? extends Throwable> expectedClass) {
    /*
     * This method is used only by CatchingFuture, and CatchingFuture accepts only Throwable.class
     * under GWT.
     */
    return true;
  }

  static void restoreInterruptIfIsInterruptedException(Throwable t) {}

  static void interruptCurrentThread() {}

    @Test
    public void testHeaderMethod() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        CurlRequest result = request.header("Content-Type", "application/json").header("Accept", "application/json");

        assertSame(request, result); // Fluent API
    }

    @Test
    public void testThreadPoolMethod() {