Converts a @see \io\vertx\jphp\ext\web\client\predicate\ResponsePredicateResult to a <code>Throwable</code> describing the error.
A predicate on .
By default, a Vert.x Web Client request ends with an error only if something wrong happens at the network level. In other words, a 404 Not Found response, or a response with the wrong content type, are NOT considered as failures.
404 Not Found
Represents the outcome of a @see \io\vertx\jphp\ext\web\client\predicate\ResponsePredicate applied to an .