assertThat(logged.get(0).getThrown()).hasMessageThat().isEqualTo("You can't fire me, I quit.");
  }

  private static final class CancelPanickingFuture<V> extends AbstractFuture<V> {
    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
      setException(new Error("You can't fire me, I quit."));
      return false;
    }
  }

    assertThat(logged.get(0).getThrown()).hasMessageThat().isEqualTo("You can't fire me, I quit.");
  }

  private static final class CancelPanickingFuture<V> extends AbstractFuture<V> {
    @Override
    public boolean cancel(boolean mayInterruptIfRunning) {
      setException(new Error("You can't fire me, I quit."));
      return false;
    }
  }