    default OptionalLong contentLength() {
        Optional<Long> optional = getFirst(HttpHeaders.CONTENT_LENGTH, Long.class);
        return optional.map(OptionalLong::of).orElseGet(OptionalLong::empty);
    }
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.