AmbiguousResolutionException for Providers on clean project from code.quarkus.io

[GregJohnStewart]

I just made a new clean project from code.quarkus.io, and get the following error when running ./gradlew verify:

java.lang.RuntimeException: io.quarkus.builder.BuildException: Build failure: Build failed due to errors
	[error]: Build step io.quarkus.arc.deployment.ArcProcessor#validate threw an exception: jakarta.enterprise.inject.spi.DeploymentException: jakarta.enterprise.inject.AmbiguousResolutionException: Ambiguous dependencies for type jakarta.ws.rs.ext.Providers and qualifiers [@Default]
	- java member: io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter():providers
	- declared on CLASS bean [types=[jakarta.ws.rs.ext.MessageBodyWriter<java.lang.Object>, org.jboss.resteasy.reactive.server.spi.ServerMessageBodyWriter$AllWriteableMessageBodyWriter, org.jboss.resteasy.reactive.common.types.AllWriteableMarker, io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter, org.jboss.resteasy.reactive.server.spi.ServerMessageBodyWriter<java.lang.Object>, java.lang.Object], qualifiers=[@Default, @Any], target=io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter]
	- available beans:
		- PRODUCER METHOD bean [types=[java.lang.Object, jakarta.ws.rs.ext.Providers], qualifiers=[@Default, @Any], target=jakarta.ws.rs.ext.Providers providers(), declaringBean=io.quarkus.resteasy.reactive.server.runtime.QuarkusContextProducers]
		- PRODUCER METHOD bean [types=[java.lang.Object, jakarta.ws.rs.ext.Providers], qualifiers=[@Default, @Any], target=jakarta.ws.rs.ext.Providers providers(), declaringBean=org.jboss.resteasy.cdi.ContextProducers]
	at io.quarkus.arc.processor.BeanDeployment.processErrors(BeanDeployment.java:1395)
	at io.quarkus.arc.processor.BeanDeployment.init(BeanDeployment.java:305)
	at io.quarkus.arc.processor.BeanProcessor.initialize(BeanProcessor.java:156)
	at io.quarkus.arc.deployment.ArcProcessor.validate(ArcProcessor.java:526)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:577)
	at io.quarkus.deployment.ExtensionLoader$3.execute(ExtensionLoader.java:909)
	at io.quarkus.builder.BuildContext.run(BuildContext.java:282)
	at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18)
	at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2513)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1538)
	at java.base/java.lang.Thread.run(Thread.java:833)
	at org.jboss.threads.JBossThread.run(JBossThread.java:501)
Caused by: jakarta.enterprise.inject.AmbiguousResolutionException: Ambiguous dependencies for type jakarta.ws.rs.ext.Providers and qualifiers [@Default]
	- java member: io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter():providers
	- declared on CLASS bean [types=[jakarta.ws.rs.ext.MessageBodyWriter<java.lang.Object>, org.jboss.resteasy.reactive.server.spi.ServerMessageBodyWriter$AllWriteableMessageBodyWriter, org.jboss.resteasy.reactive.common.types.AllWriteableMarker, io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter, org.jboss.resteasy.reactive.server.spi.ServerMessageBodyWriter<java.lang.Object>, java.lang.Object], qualifiers=[@Default, @Any], target=io.quarkus.resteasy.reactive.jackson.runtime.serialisers.FullyFeaturedServerJacksonMessageBodyWriter]
	- available beans:
		- PRODUCER METHOD bean [types=[java.lang.Object, jakarta.ws.rs.ext.Providers], qualifiers=[@Default, @Any], target=jakarta.ws.rs.ext.Providers providers(), declaringBean=io.quarkus.resteasy.reactive.server.runtime.QuarkusContextProducers]
		- PRODUCER METHOD bean [types=[java.lang.Object, jakarta.ws.rs.ext.Providers], qualifiers=[@Default, @Any], target=jakarta.ws.rs.ext.Providers providers(), declaringBean=org.jboss.resteasy.cdi.ContextProducers]
	at io.quarkus.arc.processor.Beans.resolveInjectionPoint(Beans.java:492)
	at io.quarkus.arc.processor.BeanInfo.init(BeanInfo.java:590)
	at io.quarkus.arc.processor.BeanDeployment.init(BeanDeployment.java:293)
	... 11 more

Any thoughts? Just selected the quarkus-resteasy-reactive, quarkus-resteasy-reactive-jackson, and quarkus-keycloak-admin-client extensions

[GregJohnStewart]

It appears that this only happens when quarkus-keycloak-admin-client is included...

https://github.com/GregJohnStewart/quarkus-proofs/blob/61f38a14273edaeccd3a6c00f1b58ac7d21c773c/34027-keycloak/build.gradle#L19

[gsmet]

That's expected.

quarkus-keycloak-admin-client uses RESTEasy Classic which is not compatible with RESTEasy Reactive.

Use quarkus-keycloak-admin-client-reactive instead.