@Streaming(false)
        @Produces(MediaTypeNames.OCTET_STREAM)
        @Get("/httpDataOctetStream")
        public HttpData httpDataOctetStream() {
            return HttpData.ofUtf8("httpDataOctetStream");
        }
A mock service for testing {@link ByteArrayResponseConverterFunction}.
core/src/test/java/com/linecorp/armeria/internal/server/annotation/ResponseStreamingTest.java