resteasy-reactive: ParamConverter+Kotlin+ResteasyReactice+List<SomeClass> leads to java.lang.ClassNotFoundException on startup (Regression since 2.12)

[mschorsch]

Describe the bug

Regression Quarkus 2.11 -> Quarkus 2.12

The following example leads to an error on startup (reproducer attached):

@Provider
class XyzConverterProvider : ParamConverterProvider {

    override fun <T> getConverter(
        rawType: Class<T>,
        genericType: Type,
        annotations: Array<Annotation>
    ): ParamConverter<T>? {
        return null
    }
}

enum class MyEnum {
    A, B
}

@Path("/hello")
class GreetingResource {

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    fun hello(
        @QueryParam("value") values: List<MyEnum>
    ) = values.toString()
}

2022-09-13 10:01:31,055 ERROR [io.qua.run.boo.StartupActionImpl] (Quarkus Main Thread) Error running Quarkus: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at io.quarkus.runner.bootstrap.StartupActionImpl$1.run(StartupActionImpl.java:103)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.ExceptionInInitializerError
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at java.base/java.lang.Class.newInstance(Class.java:584)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:66)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:41)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:120)
	at io.quarkus.runner.GeneratedMain.main(Unknown Source)
	... 6 more
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.<clinit>(Unknown Source)
	... 15 more
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: ? extends org.acme.MyEnum
	at org.jboss.resteasy.reactive.common.util.DeploymentUtils.loadClass(DeploymentUtils.java:43)
	at org.jboss.resteasy.reactive.server.core.startup.RuntimeResourceDeployment.smartInitParameterConverter(RuntimeResourceDeployment.java:506)
	at org.jboss.resteasy.reactive.server.core.startup.RuntimeResourceDeployment.buildResourceMethod(RuntimeResourceDeployment.java:349)
	at org.jboss.resteasy.reactive.server.core.startup.RuntimeDeploymentManager.deploy(RuntimeDeploymentManager.java:116)
	at io.quarkus.resteasy.reactive.server.runtime.ResteasyReactiveRecorder.createDeployment(ResteasyReactiveRecorder.java:174)
	at io.quarkus.deployment.steps.ResteasyReactiveProcessor$setupDeployment1557341086.deploy_0(Unknown Source)
	at io.quarkus.deployment.steps.ResteasyReactiveProcessor$setupDeployment1557341086.deploy(Unknown Source)
	... 16 more
Caused by: java.lang.ClassNotFoundException: ? extends org.acme.MyEnum
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:490)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:440)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:490)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:440)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:398)
	at org.jboss.resteasy.reactive.common.util.DeploymentUtils.loadClass(DeploymentUtils.java:41)
	... 22 more

Expected behavior

No response

Actual behavior

No response

How to Reproduce?

reproducer.zip

Output of uname -a or ver

No response

Output of java -version

Java 11

GraalVM version (if different from Java)

No response

Quarkus version or git rev

Quarkus 2.12.1.Final

Build tool (ie. output of mvnw --version or gradlew --version)

Maven

Additional information

The roblem was introduced with #27529.

[quarkus-bot]

/cc @FroMage, @evanchooly, @geoand, @stuartwdouglas