private void onPendingRequestHandled() {
        int count = pendingRequestCount.decrementAndGet();
        if (count == 0) {
            Runnable handler = onAllRequestsHandled;
            if (handler != null) {
                handler.run();
            }
        }
    }
The method ensures serviceRequestBuffer will be released by 1
turms-gateway/src/main/java/im/turms/gateway/access/client/common/ClientRequestDispatcher.java