Abel Salgado Romero

Looking at the code, it seems the issue is that it's setting the "conditional" mode by default. Forcing the `standard` works `./gradlew -Pagent=standard nativeTest`. But base on other [docs](https://graalvm.github.io/native-build-tools/latest/gradle-plugin.html#agent-support), it...

Analogous configurations for what is [supported on the server side](https://github.com/spring-projects/spring-boot/blob/934b601c884b6da333407f557c6e6e7568425023/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/netty/NettyReactiveWebServerFactory.java#L187) could be added for client site. Right now, only H2 is supported because ssl is assumed https://github.com/spring-cloud/spring-cloud-gateway/blob/be2abff70ea68b2bc7a1bd75bc6e0af74f45e9b2/spring-cloud-gateway-server/src/main/java/org/springframework/cloud/gateway/config/HttpClientFactory.java#L86.

Right now it is not possible to know with certainty the locale in use if more than one is present (https://issues.apache.org/jira/browse/DOXIA-755). But the same as for https://github.com/asciidoctor/asciidoctor-maven-plugin/pull/969, we can support...