private static AggregatedHttpResponse copyResponse(AggregatedHttpResponse res) {
        return AggregatedHttpResponse.of(res.informationals(),
                                         res.headers(),
                                         HttpData.copyOf(res.content().array()),
                                         res.trailers());
    }
Make a copy just in case the content is modified by the caller or is backed by ByteBuf.
core/src/main/java/com/linecorp/armeria/server/healthcheck/HealthCheckServiceBuilder.java