org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null

Spring JIRA | Benoit Lacelle | 2 years ago
  1. 0

    Hello, If one has a BeanPostProcessor which returns null, then the laoding of the application contact would break with an exception not clear before knowing the actual issue. Running the following test, : {code} @Configuration public static class ConfigA { @Bean public String string() { return "gogo"; } } @Configuration public static class ConfigB { @Bean public BeanPostProcessor beanPostProcessor() { return new BeanPostProcessor() { @Override public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { return null; } @Override public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { return null; } }; } } @Test public void testInvalidConfig() { try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ConfigA.class, ConfigB.class)) { } } {code} one would get {code} org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) 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:703) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84) at blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy.testInvalidConfig(TestApexSourceConfigAutonomy.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) {code} This seems trivial, but I got an equivalent issue while using Mockito to mock an interface, which I was unaware to be a BeanPostProcessor: Mockito returned null on postProcessBeforeInitialization, leading to this issue but the error message (and even debugging) took me a few hours to understand what was happening. Instead of "Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null", I would have expected something like "BeanPostProcessor named "beanPostProcessor" returned null for 'testApexSourceConfigAutonomy.ConfigA'" Thanks

    Spring JIRA | 2 years ago | Benoit Lacelle
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null
  2. 0

    Hello, If one has a BeanPostProcessor which returns null, then the laoding of the application contact would break with an exception not clear before knowing the actual issue. Running the following test, : {code} @Configuration public static class ConfigA { @Bean public String string() { return "gogo"; } } @Configuration public static class ConfigB { @Bean public BeanPostProcessor beanPostProcessor() { return new BeanPostProcessor() { @Override public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { return null; } @Override public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { return null; } }; } } @Test public void testInvalidConfig() { try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ConfigA.class, ConfigB.class)) { } } {code} one would get {code} org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) 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:703) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84) at blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy.testInvalidConfig(TestApexSourceConfigAutonomy.java:118) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) {code} This seems trivial, but I got an equivalent issue while using Mockito to mock an interface, which I was unaware to be a BeanPostProcessor: Mockito returned null on postProcessBeforeInitialization, leading to this issue but the error message (and even debugging) took me a few hours to understand what was happening. Instead of "Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null", I would have expected something like "BeanPostProcessor named "beanPostProcessor" returned null for 'testApexSourceConfigAutonomy.ConfigA'" Thanks

    Spring JIRA | 2 years ago | Benoit Lacelle
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null
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    Stack Overflow | 1 year ago | user3181365
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aspect' defined in Config: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [aspect.MyAspect]: Factory method 'aspect' threw exception; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'aspect': Requested bean is currently in creation: Is there an unresolvable circular reference?
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    freebsd.org | 1 year ago
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'int' defined in class com.ubnt.oOOO.new: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public com.ubnt.oOOO.D.D com.ubnt.oOOO.new.int()] threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'class' defined in class com.ubnt.oOOO.new: Invocation of init method failed; nested exception is java.io.FileNotFoundException: /common/local/share/java/unifi/data/db/version (No such file or directory)
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    Stack Overflow | 8 months ago | delucasvb
    org.springframework.beans.factory.BeanCreationException: Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'Server': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private MyClass Server.myClass; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [MyClass] 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)}

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Root Cause Analysis

  1. org.springframework.beans.factory.BeanCreationException

    Error creating bean with name 'string' defined in class blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy$ConfigA: factory-bean 'testApexSourceConfigAutonomy.ConfigA' returned null

    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod()
  2. Spring Beans
    DefaultListableBeanFactory.preInstantiateSingletons
    1. org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372)
    2. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
    3. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
    4. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    5. org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    6. org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
    7. org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    8. org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
    9. org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
    10. org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
    10 frames
  3. Spring Context
    AnnotationConfigApplicationContext.<init>
    1. org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
    2. org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    3. org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:84)
    3 frames
  4. blasd.apex.server
    TestApexSourceConfigAutonomy.testInvalidConfig
    1. blasd.apex.server.config.spring.autonomy.TestApexSourceConfigAutonomy.testInvalidConfig(TestApexSourceConfigAutonomy.java:118)
    1 frame
  5. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    4. java.lang.reflect.Method.invoke(Method.java:606)
    4 frames
  6. JUnit
    ParentRunner.run
    1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    4. org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    5. org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    6. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    7. org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    8. org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    9. org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    10. org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    11. org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    12. org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    13. org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    13 frames
  7. JUnit4 Runner
    JUnit4TestReference.run
    1. org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    1 frame
  8. JUnit3 Runner
    RemoteTestRunner.main
    1. org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    2. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    3. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    4. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    5. org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
    5 frames