try {
                        final long timeout = getResponseTimeout(chain);
                        if (params.contains(RequestParam.NO_TIMEOUT)) {
                            this.credits.acquire(cost);
                        } else if (!this.credits.tryAcquire(cost, timeout, TimeUnit.MILLISECONDS)) {

                response.clearReceived();
                response.setExtendedSecurity(this.extendedSecurity);
            }

            try {
                if (params.contains(RequestParam.NO_TIMEOUT)) {
                    this.expiration = -1;
                } else {
                    this.expiration = System.currentTimeMillis() + this.transportContext.getConfig().getSoTimeout();
                }