if (throwable instanceof MultiCauseException) {
            return ((MultiCauseException) throwable).getCauses();
        } else {
            List<? extends Throwable> causes = tryExtractMultiCauses(throwable);
            if (causes != null) {
                return causes;
            }
            Throwable causeTmp;
            try {
                causeTmp = throwable.getCause();