@Override
        public void channelActive(ChannelHandlerContext ctx) throws Exception {
            timingsBuilder.tlsHandshakeStart();
            super.channelActive(ctx);
            handshakeFuture().addListener(future -> timingsBuilder.tlsHandshakeEnd());
        }
A handler that collects the ssl related metric.
core/src/main/java/com/linecorp/armeria/client/HttpClientPipelineConfigurator.java