Component scan fails to find bean candidates in the embedded jar file in META-INF/context.xml for embedded Tomcat application #34446
Description
Description
Component Scan can't find annotated beans in the Web application if beans are located in the embedded .jar file.
Reproducer
A small sample application for the issue has been created: GitHub Repository (Java 17, Gradle).
Exception Stack Trace:
21:42:59.048 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory -- Creating shared instance of singleton bean 'localizationController' 21:42:59.070 [main] WARN org.springframework.web.context.support.XmlWebApplicationContext -- Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'localizationController': Unsatisfied dependency expressed through field 'langPackageLoader': No qualifying bean of type 'com.my.app.localization.LangPackageLoader' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 21:42:59.076 [main] ERROR org.springframework.web.context.ContextLoader -- Context initialization failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'localizationController': Unsatisfied dependency expressed through field 'langPackageLoader': No qualifying bean of type 'com.my.app.localization.LangPackageLoader' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:788) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:768) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:146) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:509) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1445) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:600) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:339) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:346) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.support.DefaultListableBeanFactory.instantiateSingleton(DefaultListableBeanFactory.java:1155) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton(DefaultListableBeanFactory.java:1121) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1056) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:987) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:627) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:394) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:274) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:126) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4008) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4436) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1203) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1193) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:749) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:772) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1203) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1193) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:749) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:203) 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:870) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:437) at com.test.app.runner.AppRunner.run(AppRunner.java:42) at com.test.app.runner.AppRunner.main(AppRunner.java:131) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) at org.springframework.boot.loader.Launcher.launch(Launcher.java:95) at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) at com.test.app.runner.JarLauncher.main(JarLauncher.java:38) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.my.app.localization.LangPackageLoader' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:2177) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1627) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1552) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:785) ... 52 common frames omitted How to reproduce
Clone https://github.com/osnsergey/Spring62TestWebApp2, use README.md commands to run the sample.
Bean definitions can't be found in the following jar:
spring62webapp.jar!\WEB-INF\lib\localization.jar!\