org.springframework.beans.factory.BeanCreationException

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  • Hi, I believe I found an issue with autowiring and generics. I attached a simple eclipse example project to show you the issue. Here is my "application-context.xml" file: {code:xml|title=application-context.xml|borderStyle=solid} <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> <context:annotation-config/> <bean class="spring.test.generics.GenericInterface1Impl" factory-method="create"/> <bean class="spring.test.generics.GenericInterface2Impl"/> </beans> {code} I have 2 classes: "GenericInterface1Impl" and "GenericInterface2Impl". "GenericInterface1Impl" depends on an implementation of "GenericInterface2". {code:title=GenericInterface1Impl.java|borderStyle=solid} public class GenericInterface1Impl<T> implements GenericInterface1<T>{ @Autowired private GenericInterface2<T> gi2; @Override public String doSomethingGeneric(T o) { return gi2.doSomethingMoreGeneric(o) + "_somethingGeneric_" + o; } /** * Factory Method * @return an instance of <code>GenericInterface1<String></code> */ public static GenericInterface1<String> create(){ return new GenericInterface1Impl<>(); } } {code} {code:title=GenericInterface2Impl.java|borderStyle=solid} public class GenericInterface2Impl implements GenericInterface2<String>{ @Override public String doSomethingMoreGeneric(String o) { return "somethingMoreGeneric_" + o; } } {code} "GenericInterface1Impl" has a factory method that creates an instance of "GenericInterface1<String>". The issue is: spring can't find a qualifying bean for the attribute "GenericInterface1.gi2" even though there's a suitable "GenericInterface2<String>" implementation (GenericInterface2Impl) in the application context. The exact same code works perfectly with spring version 3.2.8 but fails with spring version 4.0.2. You can easily change the spring version to 3.2.8 in "pom.xml" to verify that. Here's the exception stack trace: {noformat} Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spring.test.generics.GenericInterface1Impl#0': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private spring.test.generics.GenericInterface2 spring.test.generics.GenericInterface1Impl.gi2; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at spring.test.generics.App.main(App.java:13) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private spring.test.generics.GenericInterface2 spring.test.generics.GenericInterface1Impl.gi2; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289) ... 13 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1100) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480) ... 15 more {noformat} Thanks, Jair Jr
    via by Jair da Silva Ferreira Júnior,
  • Hi, I believe I found an issue with autowiring and generics. I can't really tell if this issue is a duplicate of [SPR-11471|https://jira.springsource.org/browse/SPR-11471], so I decided to report it anyway. The main diference with this issue is that I use the @Service annotation instead of a factory method to create the GenericInterface1Impl spring bean. I attached a simple eclipse example project to show you the issue. Here is my "application-context.xml" file: {code:xml|title=application-context.xml|borderStyle=solid} <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> <context:component-scan base-package="spring.test.generics2"/> </beans> {code} I have 2 classes: "GenericInterface1Impl" and "GenericInterface2Impl". "GenericInterface1Impl" depends on an implementation of "GenericInterface2". {code:title=GenericInterface1Impl.java|borderStyle=solid} @Service public class GenericInterface1Impl<T> implements GenericInterface1<T>{ @Autowired private GenericInterface2<T> gi2; @Override public String doSomethingGeneric(T o) { return gi2.doSomethingMoreGeneric(o) + "_somethingGeneric_" + o; } } {code} {code:title=GenericInterface2Impl.java|borderStyle=solid} @Service public class GenericInterface2Impl implements GenericInterface2<String>{ @Override public String doSomethingMoreGeneric(String o) { return "somethingMoreGeneric_" + o; } } {code} The issue is: spring can't find a qualifying bean for the attribute "GenericInterface1Impl.gi2" even though there's a suitable "GenericInterface2" implementation (GenericInterface2Impl) in the application context. The exact same code works perfectly with spring version 3.2.8 but fails with spring version 4.0.2. You can easily change the spring version to 3.2.8 in "pom.xml" to verify that. Here's the exception stack trace: {noformat} Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'genericInterface1Impl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private spring.test.generics2.GenericInterface2 spring.test.generics2.GenericInterface1Impl.gi2; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics2.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at spring.test.generics2.App.main(App.java:13) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private spring.test.generics2.GenericInterface2 spring.test.generics2.GenericInterface1Impl.gi2; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics2.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289) ... 13 more Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [spring.test.generics2.GenericInterface2] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1100) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480) ... 15 more {noformat}
    via by Jair da Silva Ferreira Júnior,
    • org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.integration.config.ServiceActivatorFactoryBean#0': Cannot resolve reference to bean 'HelloServiceImpl' while setting bean property 'targetObject'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'HelloServiceImpl' is defined at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:591) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:469) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at com.hello.main.App.main(App.java:10) Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'HelloServiceImpl' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:553) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1095) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:277) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) ... 15 more

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