protected volatile boolean throwException = false;

  protected final ListenableFutureTask<Integer> task =
      ListenableFutureTask.create(
          new Callable<Integer>() {
            @Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");

  protected volatile boolean throwException = false;

  protected final ListenableFutureTask<Integer> task =
      ListenableFutureTask.create(
          new Callable<Integer>() {
            @Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");

        }

        public void setThrowException(boolean throwException) {
            this.throwException = throwException;
        }

        public void reset() {
            transformCallCount = 0;
            lastResponseData = null;
            returnedResultData = null;
            throwException = false;
        }
    }

    /**

        private boolean throwExceptionOnConvert = false;

        public void setThrowExceptionOnInit(boolean throwException) {
            this.throwExceptionOnInit = throwException;
        }

        public void setThrowExceptionOnConvert(boolean throwException) {
            this.throwExceptionOnConvert = throwException;
        }

        @Override
        public void init() throws IOException {

    try {
      try {
        throw thrownException;
      } catch (Throwable e) {
        throw closer.rethrow(thrownException, IOException.class);
      } finally {
        assertThat(thrownException.getSuppressed()).isEmpty();
        closer.close();
      }
    } catch (IOException expected) {
      assertSame(thrownException, expected);
    }

    assertTrue(c1.isClosed());

    try {
      try {
        throw thrownException;
      } catch (Throwable e) {
        throw closer.rethrow(thrownException, IOException.class);
      } finally {
        assertThat(thrownException.getSuppressed()).isEmpty();
        closer.close();
      }
    } catch (IOException expected) {
      assertSame(thrownException, expected);
    }

    assertTrue(c1.isClosed());

            doThrow(testException).when(mockSession).close();

            Exception thrownException = assertThrows(Exception.class, mockSession::close, "close() should propagate exceptions");
            assertEquals("Test close exception", thrownException.getMessage());
        }
    }

    @Nested
    @DisplayName("Configuration Access Tests")
    class ConfigurationAccessTest {

        when(mockDelegate.getResponseTimeout()).thenThrow(testException);

        // When & Then
        RuntimeException thrownException = assertThrows(RuntimeException.class, () -> {
            delegatingConfig.getResponseTimeout();
        });

        assertSame(testException, thrownException, "Should propagate exception from delegate");
        verify(mockDelegate).getResponseTimeout();
    }

    @Test