AI services that could not be resolved by interface name

[aldettinger]

Bug description

When trying to user a Quarkus LangChain4j AI service by interface type as below:

@RegisterAiService
@ApplicationScoped
public interface MyAiService {

    @UserMessage("My Prompt")
    @Handler
    String chat(String question);
}
...
@Override
public void configure() {
  from("...")
    .bean(MyAiService.class);
}

Then, the stack trace below is produced:

java.lang.RuntimeException: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.test.junit.QuarkusTestExtension.throwBootFailureException(QuarkusTestExtension.java:628)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestClassConstructor(QuarkusTestExtension.java:712)
	at java.base/java.util.Optional.orElseGet(Optional.java:364)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
Caused by: java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source)
	at io.quarkus.runtime.Application.start(Application.java:101)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at io.quarkus.runner.bootstrap.StartupActionImpl.run(StartupActionImpl.java:305)
	at io.quarkus.test.junit.QuarkusTestExtension.doJavaStart(QuarkusTestExtension.java:241)
	at io.quarkus.test.junit.QuarkusTestExtension.ensureStarted(QuarkusTestExtension.java:595)
	at io.quarkus.test.junit.QuarkusTestExtension.beforeAll(QuarkusTestExtension.java:645)
	... 1 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: org.apache.camel.FailedToCreateRouteException: Failed to create route route2 at: >>> Bean[org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface] <<< in route: Route(route2)[From[direct:ai-service-should-be-resolvable-by... because of The bean is an interface type: interface org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface. Interfaces are only supported to lookup in the Camel registry for a single instance of such type. Otherwise the bean must be a class type.
	at org.apache.camel.quarkus.core.CamelBootstrapRecorder.start(CamelBootstrapRecorder.java:49)
	at io.quarkus.deployment.steps.CamelBootstrapProcessor$boot548544167.deploy_0(Unknown Source)
	at io.quarkus.deployment.steps.CamelBootstrapProcessor$boot548544167.deploy(Unknown Source)
	... 8 more
Caused by: java.lang.RuntimeException: org.apache.camel.FailedToCreateRouteException: Failed to create route route2 at: >>> Bean[org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface] <<< in route: Route(route2)[From[direct:ai-service-should-be-resolvable-by... because of The bean is an interface type: interface org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface. Interfaces are only supported to lookup in the Camel registry for a single instance of such type. Otherwise the bean must be a class type.
	at org.apache.camel.quarkus.main.CamelMainRuntime.start(CamelMainRuntime.java:65)
	at org.apache.camel.quarkus.core.CamelBootstrapRecorder.start(CamelBootstrapRecorder.java:47)
	... 10 more
Caused by: org.apache.camel.FailedToCreateRouteException: Failed to create route route2 at: >>> Bean[org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface] <<< in route: Route(route2)[From[direct:ai-service-should-be-resolvable-by... because of The bean is an interface type: interface org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface. Interfaces are only supported to lookup in the Camel registry for a single instance of such type. Otherwise the bean must be a class type.
	at org.apache.camel.reifier.RouteReifier.doCreateRoute(RouteReifier.java:235)
	at org.apache.camel.reifier.RouteReifier.createRoute(RouteReifier.java:86)
	at org.apache.camel.impl.DefaultModelReifierFactory.createRoute(DefaultModelReifierFactory.java:49)
	at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:726)
	at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:592)
	at org.apache.camel.impl.engine.AbstractCamelContext.doInit(AbstractCamelContext.java:2433)
	at org.apache.camel.quarkus.core.FastCamelContext.doInit(FastCamelContext.java:195)
	at org.apache.camel.support.service.BaseService.init(BaseService.java:85)
	at org.apache.camel.impl.engine.AbstractCamelContext.init(AbstractCamelContext.java:2068)
	at org.apache.camel.support.service.BaseService.start(BaseService.java:115)
	at org.apache.camel.impl.engine.AbstractCamelContext.start(AbstractCamelContext.java:2087)
	at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:211)
	at org.apache.camel.quarkus.main.CamelMain.doStart(CamelMain.java:91)
	at org.apache.camel.support.service.BaseService.start(BaseService.java:123)
	at org.apache.camel.quarkus.main.CamelMain.startEngine(CamelMain.java:137)
	at org.apache.camel.quarkus.main.CamelMainRuntime.start(CamelMainRuntime.java:49)
	... 11 more
Caused by: java.lang.IllegalArgumentException: The bean is an interface type: interface org.apache.camel.quarkus.component.langchain.it.AiServiceResolvedByInterface. Interfaces are only supported to lookup in the Camel registry for a single instance of such type. Otherwise the bean must be a class type.
	at org.apache.camel.component.bean.DefaultBeanProcessorFactory.createBeanProcessor(DefaultBeanProcessorFactory.java:161)
	at org.apache.camel.reifier.BeanReifier.createProcessor(BeanReifier.java:49)
	at org.apache.camel.reifier.ProcessorReifier.makeProcessor(ProcessorReifier.java:893)
	at org.apache.camel.reifier.ProcessorReifier.addRoutes(ProcessorReifier.java:629)
	at org.apache.camel.reifier.RouteReifier.doCreateRoute(RouteReifier.java:231)
	... 26 more