private static void ensureNonPooledObject(AggregatedHttpResponse response) {
        checkArgument(!response.content().isPooled(),
                      "Cannot create an %s with the pooled content: %s (expected: a non-pooled content)",
                      InvalidHttpResponseException.class.getSimpleName(), response);
    }
Returns the {@link AggregatedHttpResponse} which triggered this exception.
core/src/main/java/com/linecorp/armeria/client/InvalidHttpResponseException.java