MockCallback callback = new MockCallback(e);
    addCallback(f, callback, directExecutor());
  }

  public void testOnSuccessThrowsRuntimeException() throws Exception {
    RuntimeException exception = new RuntimeException();
    String result = "result";
    SettableFuture<String> future = SettableFuture.create();
    int[] successCalls = new int[1];
    int[] failureCalls = new int[1];

    void testFallbackWhenOpen() throws Exception {
        // Open the circuit
        circuitBreaker.tripBreaker();

        String result = circuitBreaker.call(() -> "primary", () -> "fallback");

        assertEquals("fallback", result);
    }

    @Test
    @DisplayName("Test transition to HALF_OPEN after timeout")
    void testTransitionToHalfOpen() throws Exception {
        // Open the circuit

    /**
     * Test concurrent name changes
     */
    public void test_concurrentNameChanges() throws Exception {
        final int threadCount = 10;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final List<Exception> exceptions = new ArrayList<>();

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

  }

  public void testEvilFuture_setFuture() throws Exception {
    RuntimeException exception = new RuntimeException("you didn't say the magic word!");
    AbstractFuture<String> evilFuture =
        new AbstractFuture<String>() {
          @Override
          public void addListener(Runnable r, Executor e) {
            throw exception;
          }
        };

    }

    public void test_loginPaths() throws Exception {
        // Test login-related paths
        assertEquals("/login/index.jsp", FessHtmlPath.path_Login_IndexJsp.getRoutingPath());
        assertEquals("/login/newpassword.jsp", FessHtmlPath.path_Login_NewpasswordJsp.getRoutingPath());
    }

    public void test_configPaths() throws Exception {
        // Test configuration paths

    }
  }
  if (exception != null) {
    throw exception
  }
}

internal fun <E> MutableList<E>.addIfAbsent(element: E) {
  if (!contains(element)) add(element)
}

internal fun Exception.withSuppressed(suppressed: List<Exception>): Throwable =
  apply {
    for (e in suppressed) addSuppressed(e)
  }

internal inline fun <T> Iterable<T>.filterList(predicate: T.() -> Boolean): List<T> {

    assertEquals(key, result.get(1));
    assertEquals(key + suffix, cache.getUnchecked(key));
  }

  static <T> Callable<T> throwing(Exception exception) {
    return new Callable<T>() {
      @Override
      public T call() throws Exception {
        throw exception;
      }
    };
  }

        when(response.getHeaderStart()).thenReturn(0);

        SMBProtocolDecodingException exception = assertThrows(SMBProtocolDecodingException.class,
                () -> response.readBytesWireFormat(buffer, bufferIndex), "Should throw exception for unknown quota info class");

        assertTrue(exception.getMessage().contains("Unknown quota info class"));
    }

    @Test

  }

  /** Records thrown exception information. */
  private static final class RecordingSubscriberExceptionHandler
      implements SubscriberExceptionHandler {
    private SubscriberExceptionContext context;
    private Throwable exception;

    @Override
    public void handleException(Throwable exception, SubscriberExceptionContext context) {
      this.exception = exception;
      this.context = context;
    }

        void readNullArrayThrows() throws Exception {
            SmbFileInputStream in = newStream();
            assertThrows(NullPointerException.class, () -> in.read(null));
        }

        @Test
        @DisplayName("readDirect with len <= 0 returns 0")
        void readDirectZeroLen() throws Exception {
            SmbFileInputStream in = newStream();