SpringBoot Factory method 'resourceHandlerMapping' threw exception with message: Uncaught exception during scan

Bug report: When upgrade Spring boot 2.7.2 to 3.2.4 , throw exceptions. And launch failed. Following is the exception trace and more details is in the attachment.

2024-05-14 11:49:43.234 [main] ERROR o.s.b.SpringApplication [TRACEID:] - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'resourceHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception with message: Uncaught exception during scan
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:648)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1335)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1165)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:562)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:522)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:975)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:962)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:624)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:456)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:334)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343)
    at com.wealth.MbAccountServiceApplication.main(MbAccountServiceApplication.java:19)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.springframework.boot.loader.launch.Launcher.launch(Launcher.java:91)
    at org.springframework.boot.loader.launch.Launcher.launch(Launcher.java:53)
    at org.springframework.boot.loader.launch.JarLauncher.main(JarLauncher.java:58)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'resourceHandlerMapping' threw exception with message: Uncaught exception during scan
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:177)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:644)
    ... 24 common frames omitted
Caused by: io.github.classgraph.ClassGraphException: Uncaught exception during scan
    at io.github.classgraph.ClassGraph.scan(ClassGraph.java:1558)
    at io.github.classgraph.ClassGraph.scan(ClassGraph.java:1575)
    at io.github.classgraph.ClassGraph.scan(ClassGraph.java:1588)
    at org.webjars.WebJarAssetLocator.scanForWebJars(WebJarAssetLocator.java:188)
    at org.webjars.WebJarAssetLocator.<init>(WebJarAssetLocator.java:210)
    at org.webjars.WebJarAssetLocator.<init>(WebJarAssetLocator.java:194)
    at org.springframework.web.servlet.resource.WebJarsResourceResolver.<init>(WebJarsResourceResolver.java:63)
    at org.springframework.web.servlet.config.annotation.ResourceChainRegistration.getResourceResolvers(ResourceChainRegistration.java:114)
    at org.springframework.web.servlet.config.annotation.ResourceHandlerRegistration.getRequestHandler(ResourceHandlerRegistration.java:235)
    at org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry.getRequestHandler(ResourceHandlerRegistry.java:178)
    at org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry.getHandlerMapping(ResourceHandlerRegistry.java:168)
    at org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport.resourceHandlerMapping(WebMvcConfigurationSupport.java:589)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
    at java.base/java.lang.reflect.Method.invoke(Method.java:580)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:140)
    ... 25 common frames omitted
Caused by: java.lang.UnsupportedOperationException: Unable to resolve nested path
    at org.springframework.boot.loader.nio.file.NestedPath.resolve(NestedPath.java:130)
    at java.base/java.nio.file.Path.resolve(Path.java:516)
    at io.github.classgraph.Scanner$2.newInstance(Scanner.java:479)
    at io.github.classgraph.Scanner$2.newInstance(Scanner.java:388)
    at nonapi.io.github.classgraph.concurrency.SingletonMap.get(SingletonMap.java:189)
    at io.github.classgraph.Scanner$3.processWorkUnit(Scanner.java:583)
    at io.github.classgraph.Scanner$3.processWorkUnit(Scanner.java:574)
    at nonapi.io.github.classgraph.concurrency.WorkQueue.runWorkLoop(WorkQueue.java:246)
    at nonapi.io.github.classgraph.concurrency.WorkQueue.runWorkQueue(WorkQueue.java:161)
    at io.github.classgraph.Scanner.processWorkUnits(Scanner.java:342)
    at io.github.classgraph.Scanner.openClasspathElementsThenScan(Scanner.java:1057)
    at io.github.classgraph.Scanner.call(Scanner.java:1156)
    at io.github.classgraph.Scanner.call(Scanner.java:83)
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
    at java.base/java.lang.Thread.run(Thread.java:1583)

debug.log

Comment From: philwebb

I think this is a duplicate of #38636. Please upgrade to the latest release of classgraph. If you're still facing an issue after that can you please provide a sample application that we can run and debug.

Comment From: AresTung

Yes, When update the classgraph to version 4.8.171, it works well. Thanks a lot.