try {
            MultivaluedMap<String, Object> head = new MultivaluedHashMap<String, Object>();
            head.add("Gtw-Transaction-Id", this.jobExecutionContext.getGtwTransactionId());
            head.add("Gtw-Sec-User-Token", this.jobExecutionContext.getLoginToken());
            head.add("Content-Type", "application/json");

            response = this.restClient.target(new URI(this.endpoint + resource))
                    .request()
                    .headers(head)
                    .get();

        } catch (Exception ex) {
            response = null;
        }