Support for graalvm

Start by tracing how PluginLoader loads ModuleImportPlugin and how GraalVM native-image configuration handles that class; the issue provides a Spring Modulith reproduction and a startup stack trace, but names no source files or tests. Reproduce the native-image failure, then verify the application starts without the ClassNotFoundException.

Hello!

I’m working with Spring Modulith (https://github.com/spring-projects/spring-modulith), which depends on ArchUnit. I built it as a native image using GraalVM 25.0.1, and when I start the application, I encounter the following error:

2026-04-15T10:19:48.531Z  INFO 1 --- [calc-fp] [cTaskExecutor-1] [                                                 ] c.t.a.c.PluginLoader                     : Detected Java version 25.0.2
2026-04-15T10:19:48.531Z DEBUG 1 --- [calc-fp] [cTaskExecutor-1] [                                                 ] c.t.a.c.PluginLoader                     : Current Java version is compatible to JAVA_9 => Loading Plugin com.tngtech.archunit.core.importer.ModuleImportPlugin
2026-04-15T10:19:48.531Z  WARN 1 --- [calc-fp] [           main] [                                                 ] .r.c.ReactiveWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'healthEndpointGroupsBeanPostProcessor': java.lang.ExceptionInInitializerError
Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'healthEndpointGroupsBeanPostProcessor': java.lang.ExceptionInInitializerError
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:610)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:525)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:333)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:371)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:331)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:201)
	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:277)
	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:812)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:605)
	at org.springframework.boot.web.server.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:69)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:756)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1365)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354)
	at ru.alfabank.app.ApplicationKt.main(Application.kt:15)
	at [email protected]/java.lang.invoke.LambdaForm$DMH/sa346b79c.invokeStaticInit(LambdaForm$DMH)
Caused by: java.util.concurrent.CompletionException: java.lang.ExceptionInInitializerError
	at [email protected]/java.util.concurrent.CompletableFuture.wrapInCompletionException(CompletableFuture.java:323)
	at [email protected]/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:359)
	at [email protected]/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:364)
	at [email protected]/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1791)
	at [email protected]/java.lang.Thread.runWith(Thread.java:1487)
	at [email protected]/java.lang.VirtualThread.run(VirtualThread.java:456)
	at [email protected]/java.lang.VirtualThread$VThreadContinuation$1.run(VirtualThread.java:248)
Caused by: java.lang.ExceptionInInitializerError
	at com.tngtech.archunit.core.importer.ClassFileImporter.lambda$importPackages$1(ClassFileImporter.java:212)
	at [email protected]/java.util.stream.ReferencePipeline$7$1FlatMap.accept(ReferencePipeline.java:288)
	at [email protected]/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1716)
	at [email protected]/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:570)
	at [email protected]/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:560)
	at [email protected]/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
	at [email protected]/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:265)
	at [email protected]/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:723)
	at com.tngtech.archunit.core.importer.ClassFileImporter.importPackages(ClassFileImporter.java:213)
	at org.springframework.modulith.core.ApplicationModules.<init>(ApplicationModules.java:134)
	at org.springframework.modulith.core.ApplicationModules.<init>(ApplicationModules.java:96)
	at org.springframework.modulith.core.ApplicationModules.lambda$of$20(ApplicationModules.java:699)
	at [email protected]/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1724)
	at org.springframework.modulith.core.ApplicationModules.of(ApplicationModules.java:696)
	at org.springframework.modulith.core.ApplicationModules.of(ApplicationModules.java:237)
	at org.springframework.modulith.core.ApplicationModules.of(ApplicationModules.java:219)
	at org.springframework.modulith.runtime.autoconfigure.SpringModulithRuntimeAutoConfiguration$ApplicationModulesBootstrap.initializeApplicationModules(SpringModulithRuntimeAutoConfiguration.java:238)
	at org.springframework.modulith.runtime.autoconfigure.SpringModulithRuntimeAutoConfiguration$ApplicationModulesBootstrap.lambda$new$0(SpringModulithRuntimeAutoConfiguration.java:202)
	at org.springframework.util.concurrent.FutureUtils.lambda$toSupplier$0(FutureUtils.java:74)
	at [email protected]/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1789)
	... 3 more
Caused by: com.tngtech.archunit.core.PluginLoader$PluginLoadingFailedException: Couldn't load plugin of type com.tngtech.archunit.core.importer.ModuleImportPlugin
	at com.tngtech.archunit.core.PluginLoader$PluginSupplier.create(PluginLoader.java:91)
	at com.tngtech.archunit.core.PluginLoader$PluginSupplier.get(PluginLoader.java:74)
	at com.tngtech.archunit.thirdparty.com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:198)
	at com.tngtech.archunit.core.PluginLoader.load(PluginLoader.java:51)
	at com.tngtech.archunit.core.importer.ImportPlugin$Loader.loadForCurrentPlatform(ImportPlugin.java:40)
	at com.tngtech.archunit.core.importer.Locations.<clinit>(Locations.java:43)
	... 23 more
Caused by: java.lang.ClassNotFoundException: com.tngtech.archunit.core.importer.ModuleImportPlugin
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.hub.ClassForNameSupport.forName(ClassForNameSupport.java:327)
	at org.graalvm.nativeimage.builder/com.oracle.svm.core.hub.ClassForNameSupport.forName(ClassForNameSupport.java:297)
	at [email protected]/java.lang.Class.forName(DynamicHub.java:1708)
	at [email protected]/java.lang.Class.forName(DynamicHub.java:1654)
	at [email protected]/java.lang.Class.forName(DynamicHub.java:1641)
	at com.tngtech.archunit.core.PluginLoader$PluginSupplier.create(PluginLoader.java:85)
	... 28 more