Question

我们有几个@Configuration注释类，应用程序在sun-jdk-6上工作正常，但在升级到oracle-jdk-7之后发生了SO错误。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cacheManagerPeerProviderFactory' defined in class path resource [com/egnyte/filestore/cache/CacheManagerPeerProviderConfigurationProvider.class]: Instantiation of bean failed; nested exception is 
org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public java.lang.Object com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider.get()] threw exception; nested exception is java.lang.StackOverflowError
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:181)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:570)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1029)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:925)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:490)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:297)
    at com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.get(<generated>)
    at com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider.get(CacheManagerPeerProviderConfigurationProvider.java:22)
    at com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.CGLIB$get$0(<generated>)
    at com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9$$FastClassByCGLIB$$1a8904d5.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:285)
    at com.egnyte.filestore.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.get(<generated>)
    at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
[SNAP...]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:160)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:570)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1029)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:925)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:490)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:297)
    at foo.bar.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.get(<generated>)
    at foo.bar.cache.CacheManagerPeerProviderConfigurationProvider.get(CacheManagerPeerProviderConfigurationProvider.java:22)
    at foo.bar.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.CGLIB$get$0(<generated>)
    at foo.bar.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9$$FastClassByCGLIB$$1a8904d5.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:285)
    at foo.bar.cache.CacheManagerPeerProviderConfigurationProvider$$EnhancerByCGLIB$$6b65bac9.get(<generated>)
    at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:160)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:570)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1029)

请注意，foo.bar.cache.CacheManagerPeerProviderConfigurationProvider.get（CacheManagerPeerProviderConfigurationProvider.java:22）指向带有@Configuration注释的代码行，而不是实际的get()实现。

默认代理模式为“否”。这堂课没有什么花哨的东西：

@Configuration
class CacheManagerPeerProviderConfigurationProvider implements Provider<Foo<?>> { 

    @Inject
    private List<Pair<String, Integer>> peers;

    @Override
    @Bean(name = CACHE_MANAGER_PEER_PROVIDER_FACTORY)
    public Foo<?> get() { 
        return new Foo(peers);    
    }
}

这是Spring中的错误吗？是否可以禁用增强器？

Answer 1

好的，所以这肯定是Spring中的一个错误。

要解决这个问题，请删除Provider<>界面，然后使get()方法成为常规方法而不是覆盖（似乎是提供商界面正在弄乱内部Spring管道，而不是本身的覆盖方法）。非常适合使你的依赖jsr-330兼容。

@Configuration
class CacheManagerPeerProviderConfigurationProvider 
  //implements Provider<Foo<?>> 
    { 

    @Inject
    private List<Pair<String, Integer>> peers;

    //@Override
    @Bean(name = CACHE_MANAGER_PEER_PROVIDER_FACTORY)
    public Foo<?> get() { 
        return new Foo(peers);    
    }
}

作品！

作为替代解决方案，将@Configuration更改为@Component或@Named

@Named
class CacheManagerPeerProviderConfigurationProvider implements Provider<Foo<?>> 
    { 

    @Inject
    private List<Pair<String, Integer>> peers;

    @Override
    @Bean(name = CACHE_MANAGER_PEER_PROVIDER_FACTORY)
    public Foo<?> get() { 
        return new Foo(peers);    
    }
}

已解决in SPR-11830

升级到Java 7后，Spring（3.2.0）ConfigurationClassEnhancer中的Stackoverflow错误

1 个答案: