Use of autoinstrumentation-java with chainguard/jre:latest

[itsmaneesh]

I was using bellsoft/liberica-openjre-alpine:17.0.5-8 as base image to create our microservice image that uses ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-java:1.26.0 for the auto-instrumentation. When I run the image then the service come up and instrumentation was working as well.

But, since the Chainguard Image images are free of CVEs, I am trying to use this cgr.dev/chainguard/jre:latest as base image to create our microservice image that uses ghcr.io/open-telemetry/opentelemetry-operator/autoinstrumentation-java:1.26.0 for the auto-instrumentation. But, when I run this image, I see, OpenTelemetry Javaagent failed to start error with the below details:

NOTE: Chainguard jre latest image has OpenJDK24.

Error:
java.lang.ExceptionInInitializerError at io.opentelemetry.javaagent.tooling.muzzle.AgentTooling.<clinit>(AgentTooling.java:23) at io.opentelemetry.javaagent.tooling.AgentInstaller.installBytebuddyAgent(AgentInstaller.java:144) at io.opentelemetry.javaagent.tooling.AgentInstaller.installBytebuddyAgent(AgentInstaller.java:98) at io.opentelemetry.javaagent.tooling.AgentStarterImpl.start(AgentStarterImpl.java:98) at io.opentelemetry.javaagent.bootstrap.AgentInitializer$1.run(AgentInitializer.java:53) at io.opentelemetry.javaagent.bootstrap.AgentInitializer$1.run(AgentInitializer.java:47) at io.opentelemetry.javaagent.bootstrap.AgentInitializer.execute(AgentInitializer.java:64) at io.opentelemetry.javaagent.bootstrap.AgentInitializer.initialize(AgentInitializer.java:46) at io.opentelemetry.javaagent.OpenTelemetryAgent.startAgent(OpenTelemetryAgent.java:57) at io.opentelemetry.javaagent.OpenTelemetryAgent.premain(OpenTelemetryAgent.java:45) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(Unknown Source) at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(Unknown Source) Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.findLoadedClass(java.lang.String) accessible: module java.base does not "opens java.lang" to unnamed module @5a39699c at java.base/java.lang.reflect.AccessibleObject.throwInaccessibleObjectException(Unknown Source) at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source)

In order to resolve it, I tried to pass the jvmFlags as shown below but i see ClassNotFoundException

jvmFlags = ['--add-opens=java.base/java.lang=ALL-UNNAMED']

Exception:

ERROR [http-nio-8093-exec-1]: org.apache.catalina.core.ContainerBase.[Tomcat-1].[localhost].[/].[dispatcherServletRegistration] {}, [] - Servlet.service() for servlet [dispatcherServletRegistration] in context with path [] threw exception [Handler dispatch failed: java.lang.NoClassDefFoundError: io/opentelemetry/javaagent/instrumentation/grpc/v1_6/GrpcSingletons with root cause java.lang.ClassNotFoundException: io.opentelemetry.javaagent.instrumentation.grpc.v1_6.GrpcSingletons at jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source) ~[?:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?] at io.grpc.Context.storage(Context.java:106) ~[grpc-api-1.57.1.jar:1.57.1] at io.grpc.Context.current(Context.java:172) ~[grpc-api-1.57.1.jar:1.57.1] at io.grpc.internal.ManagedChannelImpl$RealChannel.newCall(ManagedChannelImpl.java:988) ~[grpc-core-1.57.1.jar:1.57.1]

Do you guys see anything conflicting / other issue with this OpenJDK24 and autoinstrumentation-java:1.26.0 combinations? If so, can you please let me know the correct version that you recommend for this case?

Thanks

[laurit]

1.26.0 is more than 2 years old and was never test with java 24.