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

【问题标题】：Stackoverflow error in Spring's (3.2.0) ConfigurationClassEnhancer after upgrading to Java 7升级到 Java 7 后 Spring (3.2.0) ConfigurationClassEnhancer 中的 Stackoverflow 错误
【发布时间】：2014-07-18 20:44:52
【问题描述】：

我们有几个 @Configuration 注释类，应用程序在 sun-jdk-6 上运行良好，但在升级到 oracle-jdk-7 后发生 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。

默认代理模式是“否”。这个类没有什么花哨的：

@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？

【问题讨论】：

什么版本的 Spring？您可以从该堆栈跟踪中发布更多信息（可能是两次重复）吗？还有一些相关的代码。
@AndreiStefan - 版本在标题中，添加了更多堆栈跟踪和有问题的类
在 Spring JIRA 上找不到类似的报告。我建议使用更新版本的 Spring。此外，如果您可以在一个更简单的独立项目中重现它，那就太好了（也许还会创建一个 JIRA 问题）。
@AndreiStefan - 升级 spring 现在不是一个选项，我想提交一个错误是要走的路
补一个bug，但如果你的测试用例尽可能完整会更有帮助。而且，如果这个测试用例是针对 Spring 的最新版本之一进行的，它具有更高的可信度。

标签： java spring configuration java-7 spring-annotations

【解决方案1】：

好的，所以这肯定是 Spring 中的一个错误。

要解决此问题，请删除 Provider<> 接口，然后将 get() 方法设置为常规方法而不被覆盖（似乎是 Provider 接口弄乱了内部 Spring 管道，而不是方法本身是覆盖）。让你的依赖 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);    
    }
}

有效！

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

【讨论】：