Getting Can not find io.netty.resolver.dns.macos.MacOSDnsServerAddressStreamProvider in the classpath, fallback to system defaults. Whne using WebClient.

[javadevmtl]

Hi using Vertx gradle plugin with Java 11 and Vertx 4.0.3

I'm trying to write some sample code and getting:

Can not find io.netty.resolver.dns.macos.MacOSDnsServerAddressStreamProvider in the classpath, fallback to system defaults. This may result in incorrect DNS resolutions on MacOS.

public void doSomething(RoutingContext rc) {
WebClient client = WebClient.create(vertx);

client
.post("foo.bar", "/foo/bar.json")
.ssl(true)
.as(BodyCodec.jsonObject())
.sendJsonObject(new JsonObject()
.put("first_name", "John")
.put("last_name", "Smith")
.put("phone", "15555555555")
.put("verified_email", true)
)
.onComplete(result -> {
if(result.succeeded())
rc.response().end(result.result().bodyAsBuffer());
else
rc.fail(result.cause());
});
}

[Thomas SEGISMONT]

Hi

See this comment from Julien on GH https://github.com/netty/netty/issues/11020#issuecomment-781511365

--
You received this message because you are subscribed to the Google Groups "vert.x" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vertx+un...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/vertx/30a95683-4bc0-461c-a191-64f272c176e4n%40googlegroups.com.

[javadevmtl]

Why so? I guess dependencies changed for Netty and Vertx 4.x? Also I assume if I leave the resolver in the dependencies. If i build for docker and run it in alpine or something it won't matter because Netty will figure out to use the Linux one right? So we don't need to do anything fancy conditional regarding Os in our build scripts?

[Julien Viet]

Actually this was also happening before this update but was not logged.

We need to update the documentation I think about this.

To view this discussion on the web, visit https://groups.google.com/d/msgid/vertx/95309149-3ca4-4490-bfce-1cbfd69451c8n%40googlegroups.com.