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Description
Description
Updating log4j from 2.22.1 to 2.23.0 or 2.23.1 causes a long list of warnings with exception traces for ClassNotFound exceptions for various class files.
Configuration
Version: 2.23.1 (latest)
Operating system: Linux 6.9.12-200.fc40.x86_64 (Fedora 40)
JDK: OpenJDK Runtime Environment Corretto-21.0.4.7.1 (build 21.0.4+7-LTS)
Logs
2024-08-12T20:55:04.848574234Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AbstractAsyncExceptionHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/ExceptionHandler at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) at org.apache.logging.log4j.core.config.plugins.util.ResolverUtil.addIfMatching(ResolverUtil.java:462) at org.apache.logging.log4j.core.config.plugins.util.ResolverUtil.loadImplementationsInJar(ResolverUtil.java:357) at org.apache.logging.log4j.core.config.plugins.util.ResolverUtil.findInPackage(ResolverUtil.java:236) at org.apache.logging.log4j.core.config.plugins.util.PluginRegistry.loadFromPackage(PluginRegistry.java:224) at org.apache.logging.log4j.core.config.plugins.util.PluginManager.collectPlugins(PluginManager.java:162) at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:242) at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:313) at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:631) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:713) at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:735) at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:260) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:154) at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:46) at org.apache.logging.log4j.LogManager.getContext(LogManager.java:197) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:611) at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:597) at LoggingTest.test(LoggingTest.java:4) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:728) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:218) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:214) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:139) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1596) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:124) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:99) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:94) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:63) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) at java.base/java.lang.reflect.Method.invoke(Method.java:580) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:92) at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:198) at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:130) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:101) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:61) at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:69) at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) Caused by: java.lang.ClassNotFoundException: com.lmax.disruptor.ExceptionHandler at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ... 106 more I could not paste in the full log due to GitHub issue description restrictions, but this same exception trace continues for 36 other classes:
2024-08-12T20:55:04.848574234Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AbstractAsyncExceptionHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/ExceptionHandler 2024-08-12T20:55:04.863010652Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AsyncLogger.class java.lang.NoClassDefFoundError: com/lmax/disruptor/EventTranslatorVararg 2024-08-12T20:55:04.876041935Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AsyncLoggerConfigDefaultExceptionHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/ExceptionHandler 2024-08-12T20:55:04.888450291Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/EventHandler 2024-08-12T20:55:04.897193640Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler3.class java.lang.NoClassDefFoundError: com/lmax/disruptor/SequenceReportingEventHandler 2024-08-12T20:55:04.905696861Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/AsyncLoggerDefaultExceptionHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/ExceptionHandler 2024-08-12T20:55:04.920293618Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/JCToolsBlockingQueueFactory$MpscBlockingQueue.class java.lang.NoClassDefFoundError: org/jctools/queues/MpscArrayQueue 2024-08-12T20:55:04.927522991Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/RingBufferLogEvent$Factory.class java.lang.NoClassDefFoundError: com/lmax/disruptor/EventFactory 2024-08-12T20:55:04.934415933Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/RingBufferLogEventHandler.class java.lang.NoClassDefFoundError: com/lmax/disruptor/SequenceReportingEventHandler 2024-08-12T20:55:04.940426224Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/RingBufferLogEventHandler4.class java.lang.NoClassDefFoundError: com/lmax/disruptor/EventHandler 2024-08-12T20:55:04.945727999Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/RingBufferLogEventTranslator.class java.lang.NoClassDefFoundError: com/lmax/disruptor/EventTranslator 2024-08-12T20:55:04.950998911Z Test worker WARN Could not examine class org/apache/logging/log4j/core/async/TimeoutBlockingWaitStrategy.class java.lang.NoClassDefFoundError: com/lmax/disruptor/WaitStrategy 2024-08-12T20:55:05.019943924Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ContextDataAsEntryListDeserializer$1.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/type/TypeReference 2024-08-12T20:55:05.024074847Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ContextDataAsEntryListDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdDeserializer 2024-08-12T20:55:05.027251789Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ContextDataAsEntryListSerializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/StdSerializer 2024-08-12T20:55:05.030348787Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ContextDataDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdDeserializer 2024-08-12T20:55:05.033280449Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ContextDataSerializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/StdSerializer 2024-08-12T20:55:05.038999610Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ListOfMapEntryDeserializer$1.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/type/TypeReference 2024-08-12T20:55:05.041876744Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ListOfMapEntryDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdDeserializer 2024-08-12T20:55:05.044439136Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ListOfMapEntrySerializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/StdSerializer 2024-08-12T20:55:05.046922512Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jJsonModule.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/module/SimpleModule 2024-08-12T20:55:05.049423181Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jJsonObjectMapper.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper 2024-08-12T20:55:05.052247462Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jStackTraceElementDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdScalarDeserializer 2024-08-12T20:55:05.055034067Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jXmlModule.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/dataformat/xml/JacksonXmlModule 2024-08-12T20:55:05.057853644Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jXmlObjectMapper.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/dataformat/xml/XmlMapper 2024-08-12T20:55:05.060703167Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jYamlModule.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/module/SimpleModule 2024-08-12T20:55:05.063480087Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/Log4jYamlObjectMapper.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/dataformat/yaml/YAMLMapper 2024-08-12T20:55:05.069304136Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/MessageSerializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/StdScalarSerializer 2024-08-12T20:55:05.072218547Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/MutableThreadContextStackDeserializer$1.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/type/TypeReference 2024-08-12T20:55:05.075429779Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/MutableThreadContextStackDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdDeserializer 2024-08-12T20:55:05.078320940Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/ObjectMessageSerializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/std/StdScalarSerializer 2024-08-12T20:55:05.080930354Z Test worker WARN Could not examine class org/apache/logging/log4j/core/jackson/SimpleMessageDeserializer.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/deser/std/StdScalarDeserializer 2024-08-12T20:55:05.097624264Z Test worker WARN Could not examine class org/apache/logging/log4j/core/layout/JacksonFactory$Log4jXmlPrettyPrinter.class java.lang.NoClassDefFoundError: com/fasterxml/jackson/dataformat/xml/util/DefaultXmlPrettyPrinter 2024-08-12T20:55:05.118612683Z Test worker WARN Could not examine class org/apache/logging/log4j/core/net/SmtpManager$SMTPManagerFactory$1.class java.lang.NoClassDefFoundError: javax/mail/Authenticator 2024-08-12T20:55:05.129174092Z Test worker WARN Could not examine class org/apache/logging/log4j/core/osgi/Activator.class java.lang.NoClassDefFoundError: org/osgi/framework/SynchronousBundleListener 2024-08-12T20:55:05.197387855Z Test worker WARN Could not examine class org/apache/logging/log4j/util/Activator.class java.lang.NoClassDefFoundError: org/osgi/framework/BundleActivator 2024-08-12T20:55:05.203295573Z Test worker WARN Could not examine class org/apache/logging/log4j/util/ProviderActivator.class java.lang.NoClassDefFoundError: org/osgi/framework/BundleActivator Reproduction
I have a very small reproducer for this
build.gradle
plugins { id 'java' } repositories { mavenCentral() } dependencies { testImplementation 'org.apache.logging.log4j:log4j-core:2.23.1' testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.10.3' } test { useJUnitPlatform() }src/test/resources/log4j2-test.properties
status = info packages = org.apache.logging.log4j appender.console.type = Console appender.console.name = console rootLogger = info, consolesrc/test/java/LoggingTest.java
public class LoggingTest { @org.junit.jupiter.api.Test void test() { org.apache.logging.log4j.LogManager.getLogger(); } }Execute with ./gradlew test -i --rerun or in you IDE.
I have noticed the following:
- If I downgrade to 2.22.1 the problem goes away
- If I remove
packagesfrom thelog4j2-test.propertiesfile the problem also goes away
However, there is a reason, why I still use packages for some plugins, various annotation processors configured used to cause issues and I was never able to make log4j plugin discovery work without the packages configuration. But that is a separate issue, packages is still supported in 2.23.x, so this should still work the same way it did on 2.22.x, IMO. As a workaround, I can just downgrade to 2.22.1 for now.