@Override
                        public void completed(final AsyncConnectionEndpoint connectionEndpoint) {
                            endpointRef.set(connectionEndpoint);
                            if (log.isDebugEnabled()) {
                                log.debug("{} acquired endpoint {}", id, ConnPoolSupport.getId(connectionEndpoint));
                            }
                            callback.completed(InternalHttpAsyncExecRuntime.this);
                        }
@deprecated TLS should be configured by the connection manager
httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/InternalHttpAsyncExecRuntime.java