} catch (Exception e) {
            // Find the root cause - it should be related to unregistered class
            Throwable rootCause = e;
            while (rootCause.getCause() != null && rootCause.getCause() != rootCause) {
                rootCause = rootCause.getCause();
            }
            String message = rootCause.getMessage();
            assertTrue("Exception message should mention unregistered class: " + message,

     */
    public int getErrorCode() {
        return this.error;
    }

    /**
     *
     * @return the root cause
     * @deprecated use {@link #getCause()}
     */
    @Deprecated
    public Throwable getRootCause() {
        return getCause();
    }

    } catch (IllegalAccessException e) {
      throw new Error("Method became inaccessible: " + event, e);
    } catch (InvocationTargetException e) {
      if (e.getCause() instanceof Error) {
        throw (Error) e.getCause();
      }
      throw e;
    }
  }

  /** Gets the context for the given event. */
  private SubscriberExceptionContext context(Object event) {

        assertEquals(message, exception.getMessage());
        assertNotNull(exception.getStackTrace());
        assertTrue(exception.getStackTrace().length > 0);
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withNullMessage() {
        // Test with null message
        ResultOffsetExceededException exception = new ResultOffsetExceededException(null);

        } catch (java.lang.reflect.InvocationTargetException e) {
            // We expect this to fail, but it should be a CIFSException, not a NullPointerException
            assertTrue(e.getCause() instanceof CIFSException);
            assertTrue(e.getCause().getMessage().contains("Failed to create multi-channel transport"));
        }
    }

    @Test
    @DisplayName("MultiChannelManager should shutdown cleanly")
    void testShutdown() {

    Assert.assertTrue(countDownLatch.await(1L, SECONDS));

    try {
      Assert.assertEquals(expectedData, future.get());
    } catch (ExecutionException e) {
      throw e.getCause();
    }
  }

  /**
   * Verify that the listener completes in a reasonable amount of time, and Asserts that the future
   * throws an {@code ExecutableException} and that the cause of the {@code ExecutableException} is

        // When
        SmbException finalException = new SmbException("Final error", intermediateCause);

        // Then
        assertEquals(intermediateCause, finalException.getCause());
        assertEquals(rootCause, finalException.getCause().getCause());
    }

    @Test
    @DisplayName("Should handle null message gracefully")
    void testNullMessage() {
        // When/Then
        assertDoesNotThrow(() -> {

  }

  @GwtIncompatible // getCauseAs(Throwable, Class)
  public void testGetCauseAs() {
    SomeCheckedException cause = new SomeCheckedException();
    SomeChainingException thrown = new SomeChainingException(cause);

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

    WrapperException(Throwable t) {
      super(t);
    }
  }

  private static void rethrow(ExecutionException e) throws ExecutionException {
    Throwable wrapper = e.getCause();
    if (wrapper instanceof WrapperException) {
      Throwable cause = wrapper.getCause();
      if (cause instanceof RuntimeException) {
        throw (RuntimeException) cause;
      } else if (cause instanceof Error) {
        throw (Error) cause;
      }

    }

    @Override
    public <T> Optional<T> lookupOptional(Class<T> type) {
        try {
            return Optional.of(container.lookup(type));
        } catch (ComponentLookupException e) {
            if (e.getCause() instanceof NoSuchElementException) {
                return Optional.empty();
            }
            throw new LookupException(e);
        }
    }

    @Override