ListenableFuture<Object> input =
        UncheckedThrowingFuture.throwingRuntimeException(new SomeUncheckedException());

    // We'd catch only SomeUncheckedException.class here, but then the test won't compile under GWT.
    ListenableFuture<Object> output =
        catching(input, Throwable.class, identity(), directExecutor());
    assertThat(getDone(output)).isInstanceOf(SomeUncheckedException.class);
  }

    ListenableFuture<Object> input =
        UncheckedThrowingFuture.throwingRuntimeException(new SomeUncheckedException());

    // We'd catch only SomeUncheckedException.class here, but then the test won't compile under GWT.
    ListenableFuture<Object> output =
        catching(input, Throwable.class, identity(), directExecutor());
    assertThat(getDone(output)).isInstanceOf(SomeUncheckedException.class);
  }

 */
// TODO(dpb): Consider reusing one CloseableList for the entire pipeline, modulo combinations.
@DoNotMock("Use ClosingFuture.from(Futures.immediate*Future)")
@J2ktIncompatible
@GwtIncompatible // TODO(dpb): GWT compatibility.
public final class ClosingFuture<V extends @Nullable Object> {

  private static final LazyLogger logger = new LazyLogger(ClosingFuture.class);

  /**