In unit tests: GlobalOpenTelemetry.set has already been called.

[BrianSetz]

I have a very strange problem where I get an exception that only happens in unit tests. When I run the application normally, the exception does not show up. This behaviour only shows up after adding a guard rail (either input or output, both will trigger this behaviour) to my application.

I am aware this all sounds very vague, my apologies for that. I'm trying to make a small reproducer but I haven't succeeded yet. Perhaps someone could point me in the right direction that could trigger this kind of unit test exclusive behaviour?

Full stack trace:

java.lang.AssertionError: 1 expectation failed.
Expected status code <200> but was <500>.

	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
	at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:73)
	at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:108)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:57)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:263)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:277)
	at io.restassured.internal.ResponseSpecificationImpl$HamcrestAssertionClosure.validate(ResponseSpecificationImpl.groovy:512)
	at io.restassured.internal.ResponseSpecificationImpl$HamcrestAssertionClosure$validate$1.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
	at io.restassured.internal.ResponseSpecificationImpl.forceValidateResponse(ResponseSpecificationImpl.groovy:682)
	at io.restassured.module.kotlin.extensions.RestAssuredKotlinExtensionsKt.Then$lambda$1(RestAssuredKotlinExtensions.kt:61)
	at io.restassured.module.kotlin.extensions.RestAssuredKotlinExtensionsKt.doIfValidatableResponseImpl$lambda$2(RestAssuredKotlinExtensions.kt:80)
	at io.restassured.module.kotlin.extensions.RestAssuredKotlinExtensionsKt.Then(RestAssuredKotlinExtensions.kt:60)
	at nl.rug.digitallab.rag.resources.RagResourceTest.Inferring a question should succeed(RagResourceTest.kt:18)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at io.quarkus.test.junit.QuarkusTestExtension.runExtensionMethod(QuarkusTestExtension.java:999)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:847)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	Suppressed: io.quarkiverse.langchain4j.runtime.aiservice.GuardrailException: Error creating synthetic bean [Le6zQbzkojAYO_OiKIQWJf4lGa4]: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
		at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardrails(GuardrailsSupport.java:55)
		at io.quarkiverse.langchain4j.runtime.aiservice.AiServiceMethodImplementationSupport.doImplement(AiServiceMethodImplementationSupport.java:266)
		at io.quarkiverse.langchain4j.runtime.aiservice.AiServiceMethodImplementationSupport.implement(AiServiceMethodImplementationSupport.java:154)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$1.apply(MethodImplementationSupportProducer.java:31)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$1.apply(MethodImplementationSupportProducer.java:28)
		at io.quarkiverse.langchain4j.runtime.aiservice.SpanWrapper.wrap(SpanWrapper.java:32)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:40)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:37)
		at io.quarkiverse.langchain4j.runtime.aiservice.MetricsTimedWrapper$2.get(MetricsTimedWrapper.java:42)
		at io.micrometer.core.instrument.composite.CompositeTimer.record(CompositeTimer.java:69)
		at io.quarkiverse.langchain4j.runtime.aiservice.MetricsTimedWrapper.wrap(MetricsTimedWrapper.java:39)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:40)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:37)
		at io.quarkiverse.langchain4j.runtime.aiservice.MetricsCountedWrapper.wrap(MetricsCountedWrapper.java:22)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:40)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:37)
		at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1.implement(MethodImplementationSupportProducer.java:46)
		at nl.rug.digitallab.rag.langchain.StudentAssistantAiService$$QuarkusImpl.answerQuestion(Unknown Source)
		at nl.rug.digitallab.rag.langchain.StudentAssistantAiService$$QuarkusImpl_ClientProxy.answerQuestion(Unknown Source)
		at nl.rug.digitallab.rag.managers.RagManager.infer(RagManager.kt:54)
		at nl.rug.digitallab.rag.managers.RagManager_ClientProxy.infer(Unknown Source)
		at nl.rug.digitallab.rag.resources.RagResource.infer(RagResource.kt:48)
		at nl.rug.digitallab.rag.resources.RagResource$quarkusrestinvoker$infer_6641116d0c2682d92ecd97ca0b8d6e6696d93692.invoke(Unknown Source)
		at org.jboss.resteasy.reactive.server.handlers.InvocationHandler.handle(InvocationHandler.java:29)
		at io.quarkus.resteasy.reactive.server.runtime.QuarkusResteasyReactiveRequestContext.invokeHandler(QuarkusResteasyReactiveRequestContext.java:141)
		at org.jboss.resteasy.reactive.common.core.AbstractResteasyReactiveContext.run(AbstractResteasyReactiveContext.java:147)
		at io.quarkus.vertx.core.runtime.VertxCoreRecorder$15.runWith(VertxCoreRecorder.java:637)
		at org.jboss.threads.EnhancedQueueExecutor$Task.doRunWith(EnhancedQueueExecutor.java:2651)
		at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2630)
		at org.jboss.threads.EnhancedQueueExecutor.runThreadBody(EnhancedQueueExecutor.java:1622)
		at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1589)
		at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:11)
		at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:11)
		at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
		at java.base/java.lang.Thread.run(Thread.java:1583)
	Caused by: jakarta.enterprise.inject.CreationException: Error creating synthetic bean [Le6zQbzkojAYO_OiKIQWJf4lGa4]: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.doCreate(Unknown Source)
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.create(Unknown Source)
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.create(Unknown Source)
		at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
		at io.quarkus.arc.impl.LazyValue.get(LazyValue.java:32)
		at io.quarkus.arc.impl.ComputingCache.computeIfAbsent(ComputingCache.java:69)
		at io.quarkus.arc.impl.ComputingCacheContextInstances.computeIfAbsent(ComputingCacheContextInstances.java:19)
		at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.get(Unknown Source)
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.get(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.doCreate(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.create(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.get(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.get(Unknown Source)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Subclass.<init>(Unknown Source)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.doCreate(Unknown Source)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.create(Unknown Source)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.create(Unknown Source)
		at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
		at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.c15(Unknown Source)
		at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.computeIfAbsent(Unknown Source)
		at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
		at io.quarkus.arc.impl.ClientProxies.getApplicationScopedDelegate(ClientProxies.java:23)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_ClientProxy.arc$delegate(Unknown Source)
		at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_ClientProxy.validate(Unknown Source)
		at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.guardrailResult(GuardrailsSupport.java:198)
		at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardRails(GuardrailsSupport.java:188)
		at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardrails(GuardrailsSupport.java:50)
		... 34 more
	Caused by: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
		at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.build(AutoConfiguredOpenTelemetrySdkBuilder.java:527)
		at io.quarkus.opentelemetry.runtime.OpenTelemetryRecorder$2.apply(OpenTelemetryRecorder.java:102)
		at io.quarkus.opentelemetry.runtime.OpenTelemetryRecorder$2.apply(OpenTelemetryRecorder.java:88)
		at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.createSynthetic(Unknown Source)
		... 66 more
	Caused by: java.lang.IllegalStateException: GlobalOpenTelemetry.set has already been called. GlobalOpenTelemetry.set must be called only once before any calls to GlobalOpenTelemetry.get. If you are using the OpenTelemetrySdk, use OpenTelemetrySdkBuilder.buildAndRegisterGlobal instead. Previous invocation set to cause of this exception.
		at io.opentelemetry.api.GlobalOpenTelemetry.set(GlobalOpenTelemetry.java:107)
		at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.maybeSetAsGlobal(AutoConfiguredOpenTelemetrySdkBuilder.java:594)
		at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.build(AutoConfiguredOpenTelemetrySdkBuilder.java:508)
		... 69 more
	Caused by: java.lang.Throwable
		at io.opentelemetry.api.GlobalOpenTelemetry.set(GlobalOpenTelemetry.java:115)
		at io.opentelemetry.api.GlobalOpenTelemetry.get(GlobalOpenTelemetry.java:85)
		at io.opentelemetry.api.GlobalOpenTelemetry.getTracer(GlobalOpenTelemetry.java:134)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer.getTracer(TracerProducer.java:33)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.doCreate(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.create(Unknown Source)
		at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.create(Unknown Source)
		at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
		at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
		at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.c27(Unknown Source)
		at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.computeIfAbsent(Unknown Source)
		at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
		at io.quarkus.arc.impl.ClientProxies.getApplicationScopedDelegate(ClientProxies.java:23)
		at io.opentelemetry.api.trace.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_ClientProxy.arc$delegate(Unknown Source)
		at io.opentelemetry.api.trace.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_ClientProxy.spanBuilder(Unknown Source)
		at io.quarkiverse.langchain4j.runtime.aiservice.SpanWrapper.wrap(SpanWrapper.java:30)
		... 29 more

[geoand]

Very interesting indeed. I'm afraid that without a reproducer, we can't offer much help.
FWIW, this is likely a timing bug on our side, so if you are able to add a reproducer at some point, we'll make sure to fix it.

[BrianSetz]

Hi @geoand here is a reproducer: https://github.com/BrianSetz/quarkus-langchain4j-reproducer-otel running SimpleTest should result in a GlobalOpenTelemetry.set has already been called

It is even more strange (to me anyway) than I expected:

Whenever the combination of

• io.quarkus:quarkus-config-yaml
• io.quarkus:quarkus-opentelemetry

is present, the bug manifest. Whenever disabling either one of those, the bug disappears. (Removing the guard rails also stops the bug from manifesting)

[geoand]

Thanks a lot!

I'll have a look later on today or on Monday

[geoand]

This happens because when you add quarkus-config-yaml in your case, quarkus.otel.sdk.disabled gets set to true.

@brunobat What's the expected semantic here? Asking because quarkus.otel.sdk.disabled=true seems to break a whole lot of stuff. In the reproducer in question on gets:

io.quarkiverse.langchain4j.runtime.aiservice.GuardrailException: Error creating synthetic bean [Le6zQbzkojAYO_OiKIQWJf4lGa4]: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
	at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardrails(GuardrailsSupport.java:55)
	at io.quarkiverse.langchain4j.runtime.aiservice.AiServiceMethodImplementationSupport.doImplement(AiServiceMethodImplementationSupport.java:266)
	at io.quarkiverse.langchain4j.runtime.aiservice.AiServiceMethodImplementationSupport.implement(AiServiceMethodImplementationSupport.java:154)
	at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$1.apply(MethodImplementationSupportProducer.java:31)
	at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$1.apply(MethodImplementationSupportProducer.java:28)
	at io.quarkiverse.langchain4j.runtime.aiservice.SpanWrapper.wrap(SpanWrapper.java:32)
	at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:40)
	at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1$2.apply(MethodImplementationSupportProducer.java:37)
	at io.quarkiverse.langchain4j.runtime.aiservice.MethodImplementationSupportProducer$1.implement(MethodImplementationSupportProducer.java:46)
	at nl.rug.digitallab.rag.langchain.StudentAssistantAiService$$QuarkusImpl.answerQuestion(Unknown Source)
	at nl.rug.digitallab.rag.langchain.StudentAssistantAiService$$QuarkusImpl_ClientProxy.answerQuestion(Unknown Source)
	at nl.rug.digitallab.rag.SimpleTest.testInference(SimpleTest.kt:16)
	at java.base@23.0.1/java.lang.reflect.Method.invoke(Method.java:580)
	at io.quarkus.test.junit.QuarkusTestExtension.runExtensionMethod(QuarkusTestExtension.java:1000)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:848)
	at java.base@23.0.1/java.util.ArrayList.forEach(ArrayList.java:1597)
	at java.base@23.0.1/java.util.ArrayList.forEach(ArrayList.java:1597)
Caused by: jakarta.enterprise.inject.CreationException: Error creating synthetic bean [Le6zQbzkojAYO_OiKIQWJf4lGa4]: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.doCreate(Unknown Source)
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.create(Unknown Source)
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.create(Unknown Source)
	at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
	at io.quarkus.arc.impl.LazyValue.get(LazyValue.java:32)
	at io.quarkus.arc.impl.ComputingCache.computeIfAbsent(ComputingCache.java:69)
	at io.quarkus.arc.impl.ComputingCacheContextInstances.computeIfAbsent(ComputingCacheContextInstances.java:19)
	at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.get(Unknown Source)
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.get(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.doCreate(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.create(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.get(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.WithSpanInterceptor_Bean.get(Unknown Source)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Subclass.<init>(Unknown Source)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.doCreate(Unknown Source)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.create(Unknown Source)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_Bean.create(Unknown Source)
	at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
	at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.c4(Unknown Source)
	at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.computeIfAbsent(Unknown Source)
	at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
	at io.quarkus.arc.impl.ClientProxies.getApplicationScopedDelegate(ClientProxies.java:23)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_ClientProxy.arc$delegate(Unknown Source)
	at nl.rug.digitallab.rag.langchain.inference.BasicInputGuardrail_ClientProxy.validate(Unknown Source)
	at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.guardrailResult(GuardrailsSupport.java:198)
	at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardRails(GuardrailsSupport.java:188)
	at io.quarkiverse.langchain4j.runtime.aiservice.GuardrailsSupport.invokeInputGuardrails(GuardrailsSupport.java:50)
	... 16 more
Caused by: io.opentelemetry.sdk.autoconfigure.spi.ConfigurationException: Unexpected configuration error
	at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.build(AutoConfiguredOpenTelemetrySdkBuilder.java:527)
	at io.quarkus.opentelemetry.runtime.OpenTelemetryRecorder$2.apply(OpenTelemetryRecorder.java:102)
	at io.quarkus.opentelemetry.runtime.OpenTelemetryRecorder$2.apply(OpenTelemetryRecorder.java:88)
	at io.opentelemetry.api.OpenTelemetry_Le6zQbzkojAYO_OiKIQWJf4lGa4_Synthetic_Bean.createSynthetic(Unknown Source)
	... 48 more
Caused by: java.lang.IllegalStateException: GlobalOpenTelemetry.set has already been called. GlobalOpenTelemetry.set must be called only once before any calls to GlobalOpenTelemetry.get. If you are using the OpenTelemetrySdk, use OpenTelemetrySdkBuilder.buildAndRegisterGlobal instead. Previous invocation set to cause of this exception.
	at io.opentelemetry.api.GlobalOpenTelemetry.set(GlobalOpenTelemetry.java:107)
	at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.maybeSetAsGlobal(AutoConfiguredOpenTelemetrySdkBuilder.java:594)
	at io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdkBuilder.build(AutoConfiguredOpenTelemetrySdkBuilder.java:508)
	... 51 more
Caused by: java.lang.Throwable
	at io.opentelemetry.api.GlobalOpenTelemetry.set(GlobalOpenTelemetry.java:115)
	at io.opentelemetry.api.GlobalOpenTelemetry.get(GlobalOpenTelemetry.java:85)
	at io.opentelemetry.api.GlobalOpenTelemetry.getTracer(GlobalOpenTelemetry.java:134)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer.getTracer(TracerProducer.java:33)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.doCreate(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.create(Unknown Source)
	at io.quarkus.opentelemetry.runtime.tracing.cdi.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_Bean.create(Unknown Source)
	at io.quarkus.arc.impl.AbstractSharedContext.createInstanceHandle(AbstractSharedContext.java:119)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:38)
	at io.quarkus.arc.impl.AbstractSharedContext$1.get(AbstractSharedContext.java:35)
	at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.c5(Unknown Source)
	at io.quarkus.arc.generator.Default_jakarta_enterprise_context_ApplicationScoped_ContextInstances.computeIfAbsent(Unknown Source)
	at io.quarkus.arc.impl.AbstractSharedContext.get(AbstractSharedContext.java:35)
	at io.quarkus.arc.impl.ClientProxies.getApplicationScopedDelegate(ClientProxies.java:23)
	at io.opentelemetry.api.trace.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_ClientProxy.arc$delegate(Unknown Source)
	at io.opentelemetry.api.trace.TracerProducer_ProducerMethod_getTracer_2WbgLITcyJ8m3eLEKU0XTuO1Xs4_ClientProxy.spanBuilder(Unknown Source)
	at io.quarkiverse.langchain4j.runtime.aiservice.SpanWrapper.wrap(SpanWrapper.java:30)
	... 11 more

which happens because OTel has not been initialized

[brunobat]

This happens because OpenTelemetry has been initialized before the synthetic bean with the OpenTelemetry Autoconfiguration has been instantiated by the extension.

The method doing the call at GuardrailsSupport:55 is a public static one. Something it uses required OpenTelemetry and OpenTelemetry must not be used in a static context at startup because it must be used through CDI.

[geoand]

Tempting as that explanation may be, unfortunately that is not what is happening here. The guardrail is being executed as part of CDI request handling, so in other words, a completely normal scenario.

The problem exists because with the use of quarkus.otel.sdk.disabled=true, InstrumentationRecorder#setupVertxTracer exits very early, which in turns means that OpenTelemetry openTelemetry = beanContainer.beanInstance(OpenTelemetry.class); is not invoked - which then causes all sorts of problems.

I have an idea of how this can be fixed, but I need to check.

[geoand]

@brunobat quarkusio/quarkus#48887 is a quick fix