open-telemetry / open-telemetry/opentelemetry-java-instrumentation

URLClassLoader previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"

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Description

I don't have a local repro that can be used to debug, so was curious if anyone has thoughts / leads on what might be the issue here? Thanks!

Exception:

Error creating bean with name 'otelAutoDispatcherFilter': Instantiation of bean failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"

full stack trace 
02-Jan-2025 14:34:13.659 SEVERE [main] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'otelAutoDispatcherFilter': Instantiation of bean failed; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1334)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1232)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:399)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:278)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4007)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4448)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:599)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:571)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:603)
        at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1175)
        at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1888)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
        at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1086)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1584)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
        at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:385)
        at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:332)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:776)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:721)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1203)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1193)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:749)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:211)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:415)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:878)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:735)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)
    Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.parseAndCacheMh(OpenTelemetryHandlerMappingFilter.java:190)
        at org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.<clinit>(OpenTelemetryHandlerMappingFilter.java:45)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1326)
        ... 54 more

Same exception (with slightly different stack trace) occurs as well when running under -Dotel.javaagent.experimental.indy=true:

(cc @JonasKunz @SylvainJuge)

full stack trace 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'otelAutoDispatcherFilter': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter]: Constructor threw exception; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1334)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1232)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:399)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:278)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4018)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4460)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:599)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:571)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:603)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1175)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1888)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
    at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1086)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1584)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
    at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:389)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:336)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:776)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:721)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1203)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1193)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:749)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:211)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:415)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:874)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:739)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:473)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter]: Constructor threw exception; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1326)
    ... 54 more
Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of java/net/URLClassLoader) previously initiated loading for a different type with name "org/springframework/http/server/RequestPath"
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:756)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at io.opentelemetry.javaagent.tooling.instrumentation.indy.InstrumentationModuleClassLoader.tryLoad(InstrumentationModuleClassLoader.java:263)
    at io.opentelemetry.javaagent.tooling.instrumentation.indy.InstrumentationModuleClassLoader.loadClass(InstrumentationModuleClassLoader.java:235)
    at io.opentelemetry.javaagent.tooling.instrumentation.indy.InstrumentationModuleClassLoader.loadClass(InstrumentationModuleClassLoader.java:205)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.parseAndCacheMh(OpenTelemetryHandlerMappingFilter.java:190)
    at org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.<clinit>(OpenTelemetryHandlerMappingFilter.java:45)
    at sun.misc.Unsafe.allocateInstance(Native Method)
    at java.lang.invoke.DirectMethodHandle.allocateInstance(DirectMethodHandle.java:439)
    at org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.<init>(Unknown Source)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
    ... 56 more

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with org.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter, especially parseAndCacheMh at line 190 and the static initializer at line 45 in the stack trace. Investigate the URLClassLoader constraint violation in both normal startup and with -Dotel.javaagent.experimental.indy=true; done means identifying and resolving the failure despite the missing local reproduction.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spring
Domain
backend
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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