Hello,

Settting a document to trash only update the ecm:isTrashed propertty value but doesn't have an impact on the URL. This allows you to easily untrash a documentt (and consequenttly, not ot regenerate an URL). For this use case, it probably needs to implement a custom secutiry policy (https://doc.nuxeo.com/nxdoc/security-policy-service/ ).

With something like this in your checkPermission method:

Boolean isTrashed = Optional.ofNullable((Boolean) doc.getValue("ecm:isTrashed"))
                    .orElse(Boolean.FALSE);
            if (isTrashed) {
                return Access.DENY;
            }
         else {
         return Access.UNKNOWN
            }