* returns the expected data.
   *
   * @throws Throwable if the listener isn't called or if it resulted in a throwable or if the
   *     result doesn't match the expected value.
   */
  public void assertSuccess(Object expectedData) throws Throwable {
    // Verify that the listener executed in a reasonable amount of time.
    Assert.assertTrue(countDownLatch.await(1L, SECONDS));

    }

    /**
     * Test method for
     * {@link org.codelibs.core.exception.ClUnsupportedOperationException#SUnsupportedOperationException(java.lang.String, java.lang.Throwable)}
     * .
     */
    @Test
    public void testSUnsupportedOperationExceptionStringThrowable() {
        final ClUnsupportedOperationException clUnsupportedOperationException =

    assertThat(s2).isNotInstanceOf(Subscriber.SynchronizedSubscriber.class);
  }

  public void testInvokeSubscriberMethod_basicMethodCall() throws Throwable {
    Method method = getTestSubscriberMethod("recordingMethod");
    Subscriber subscriber = Subscriber.create(bus, this, method);

    subscriber.invokeSubscriberMethod(FIXTURE_ARGUMENT);

        return errcode + "";
    }

    /** The SMB error status code */
    private int status;
    /** The root cause exception */
    private Throwable rootCause;

    SmbException() {
    }

    SmbException(final int errcode, final Throwable rootCause) {
        super(getMessageByCode(errcode));
        status = getStatusByCode(errcode);
        this.rootCause = rootCause;
    }

      wrapAndThrowRuntimeExecutionExceptionOrError(e.getCause());
      throw new AssertionError();
    }
  }

  private static Exception throwCause(Exception e, boolean combineStackTraces) throws Exception {
    Throwable cause = e.getCause();
    if (cause == null) {
      throw e;
    }
    if (combineStackTraces) {
      StackTraceElement[] combined =

        assertNull(exception.getCause());
    }

    public void test_constructor_withNullCause() {
        // Test with null cause
        DataStoreException exception = new DataStoreException((Throwable) null);

        assertNotNull(exception);
        assertNull(exception.getCause());
        assertNull(exception.getMessage());
    }

    public void test_constructor_withNullMessageAndCause() {

        assertEquals("Top level SSO error", exception.getMessage());

        // Verify the exception chain
        Throwable cause1 = exception.getCause();
        assertNotNull(cause1);
        assertTrue(cause1 instanceof IOException);
        assertEquals("Level 1 error", cause1.getMessage());

        Throwable cause2 = cause1.getCause();
        assertNotNull(cause2);
        assertTrue(cause2 instanceof IllegalStateException);

 */
@Tag("Slowish")
class TaskRunnerRealBackendTest {
  private val log = LinkedBlockingDeque<String>()

  private val loggingUncaughtExceptionHandler =
    UncaughtExceptionHandler { _, throwable ->
      log.put("uncaught exception: $throwable")
    }

  private val threadFactory =
    ThreadFactory { runnable ->
      Thread(runnable, "TaskRunnerRealBackendTest").apply {
        isDaemon = true

   */
  public UncheckedExecutionException(@Nullable String message, @Nullable Throwable cause) {
    super(message, cause);
  }

  /**
   * Creates a new instance with {@code null} as its detail message and the given cause. Prefer to
   * provide a non-nullable {@code cause}, as many users expect to find one.
   */
  public UncheckedExecutionException(@Nullable Throwable cause) {
    super(cause);
  }

   * returns {@code true}. Calling {@code get()} will immediately throw the provided {@code
   * Throwable} wrapped in an {@code ExecutionException}.
   */
  public static <V extends @Nullable Object> ListenableFuture<V> immediateFailedFuture(
      Throwable throwable) {
    checkNotNull(throwable);
    return new ImmediateFailedFuture<>(throwable);
  }

  /**