由于：java.lang.NoClassDefFoundError：无法初始化类net.sf.cglib.proxy.Enhancer

Question

当我自动装载request.session范围的bean，我得到这个错误。我使用Spring 3与休眠。 我必须围绕concerete类创建代理，所以我必须使用cglib选项。 自动装配的问题可以通过设计模式来解决，如方法注入，工厂模式，但是我必须自动装配大量的bean，以便解决代理问题。

Caused by: java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.proxy.Enhancer 
at org.springframework.aop.framework.Cglib2AopProxy.createEnhancer(Cglib2AopProxy.java:228) 
at org.springframework.aop.framework.Cglib2AopProxy.getProxy(Cglib2AopProxy.java:170) 
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:112) 
at org.springframework.aop.scope.ScopedProxyFactoryBean.setBeanFactory(ScopedProxyFactoryBean.java:109) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1422) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1391) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) 
... 43 more 

这里是我的需要自动装配的bean的应用程序上下文代码。

<bean name="registerBean" class="com.ClickToShop.Beans.RegisterBean" scope="request"> 
<aop:scoped-proxy proxy-target-class="true" /> 
</bean> 

这里是我的控制器代码

@Autowired 
@Qualifier("registerBean") 
public void setRegisterBean(RegisterBean registerBean) { 
this.registerBean = registerBean; 
} 

我按照以下提到的步骤，但没有解决方案。 1.added cglib-nodep-2.2.3.jar。它没有解决问题。 2.发现那个春天有org.springsource.net.sf.cglib其中包含增强类，但不知道为什么它不采取这一点。

完整的堆栈跟踪

相关原因：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'registerBean' defined in BeanDefinition defined in ServletContext resource [/WEB-INF/Conf/ClickToShop.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.proxy.Enhancer 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getTypeForFactoryBean(AbstractBeanFactory.java:1301) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:672) 
at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:486) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:305) 
at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:185) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:810) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:767) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:685) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:559) 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1055) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:443) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:459) 
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:340) 
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:307) 
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127) 
at javax.servlet.GenericServlet.init(GenericServlet.java:212) 
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161) 
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
at java.lang.Thread.run(Thread.java:619) 




Caused by: java.lang.NoClassDefFoundError: Could not initialize class net.sf.cglib.proxy.Enhancer 
at org.springframework.aop.framework.Cglib2AopProxy.createEnhancer(Cglib2AopProxy.java:228) 
at org.springframework.aop.framework.Cglib2AopProxy.getProxy(Cglib2AopProxy.java:170) 
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:112) 
at org.springframework.aop.scope.ScopedProxyFactoryBean.setBeanFactory(ScopedProxyFactoryBean.java:109) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1422) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1391) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) 
... 43 more 
Aug 20, 2013 2:51:07 AM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Allocate exception for servlet MyDispatcherServlet 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.ClickToShop.Beans.RegisterBean] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {} 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:901) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:770) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:685) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:559) 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84) 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1055) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290) 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287) 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189) 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562) 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871) 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:443) 
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:459) 
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:340) 
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:307) 
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127) 
at javax.servlet.GenericServlet.init(GenericServlet.java:212) 
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161) 
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
at java.lang.Thread.run(Thread.java:619) 

Answer 1

问题得到了与Spring 3.2.2罐更换弹簧3.0罐子后解决。 如果使用Spring 3.2罐子，则不需要添加任何其他外部罐子。

Answer 2

我在MuleSoft的MUnit测试遇到了同样的问题，而这个知识库文章帮助 https://support.mulesoft.com/s/article/ka434000000TRBZAA4/Fixing-MUnit-s-error-The-message-processor-XX-could-not-be-mocked

它给人的暗示，这也可能会涉及到多个CGLIB在测试阶段已经发现因此明确exlude他们在maven插件配置是一个替代解决方案