在RCP应用程序中从Spring 3.0.5升级到3.2.1之后的ClassNotFoundException

时间：2014-02-05 18:26:14

标签： spring eclipse-plugin osgi eclipse-rcp spring-dm

我有一个带有数百个捆绑的RCP应用程序，它与Spring dm连接。在升级到Spring 3.2.1之后，我现在在几个包中得到以下异常。起初我以为它可能是由dm中的一些魔法引起的，但是在通过初始化没有dm的bundle（仅以编程方式启动ApplicationContext）测试该理论之后，我仍然遇到了相同的异常。

堆栈跟踪： 

Exception in thread "SpringOsgiExtenderThread-130" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'FileSystemsStackViewControlFactory' defined in OSGi resource[classpath:spring/filesystem-ui.xml|bnd.id=176|bnd.sym=filesystem.ui]: Instantiation of bean failed; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1011)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:957)
    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.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:69)
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:355)
    at org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:320)
    at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:132)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237)
    at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
    at org.springframework.cglib.proxy.Enhancer.create(Enhancer.java:285)
    at org.springframework.beans.factory.support.CglibSubclassingInstantiationStrategy$CglibSubclassCreator.instantiate(CglibSubclassingInstantiationStrategy.java:117)
    at org.springframework.beans.factory.support.CglibSubclassingInstantiationStrategy.instantiateWithMethodInjection(CglibSubclassingInstantiationStrategy.java:69)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:91)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1004)
    ... 15 more
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:384)
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:219)
    ... 21 more
Caused by: java.lang.NoClassDefFoundError: org/springframework/cglib/proxy/Factory
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    ... 26 more
Caused by: java.lang.ClassNotFoundException: org.springframework.cglib.proxy.Factory
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 29 more

原始清单是Require-Bundle和Package-Import的混合，所以我尝试完全删除Require-Bundle。不要指望这会改变任何事情，但绝望的时候会采取绝望的措施，我是对的，仍然没有。

作为最后的手段，我也尝试添加这个属性，但仍然没有变化。

DynamicImport-Package: *

我知道Spring在3.1版本中改变了对cglib的使用，将cglib和asm嵌入到他们的核心jar中，但是我已经为所有cglib和asm包添加了导入无效。

清单： 

Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: File System UI
Bundle-SymbolicName: com.mycorp.filesystem.ui;singleton:=true
Bundle-Version: 15.7.0.qualifier
Bundle-Activator: com.mycorp.filesystem.ui.internal.Activator
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Bundle-ActivationPolicy: lazy
Import-Package: com.mycorpcse.utils.eclipse,
 com.mycorp.common.ui,
      :
   Many other in house dependencies
      :
 com.mycorp.core,
 org.eclipse.core.commands,
      :
   Many other eclipse dependencies
      :
 org.eclipse.ui.views.properties,
 org.osgi.framework;version="1.7.0",
 org.springframework.asm;version="3.2.1.RELEASE",
 org.springframework.asm.commons;version="3.2.1.RELEASE",
 org.springframework.asm.signature;version="3.2.1.RELEASE",
 org.springframework.asm.util;version="3.2.1.RELEASE",
 org.springframework.beans;version="3.0.5.RELEASE",
 org.springframework.beans.factory.annotation,
 org.springframework.cglib;version="3.2.1.RELEASE",
 org.springframework.cglib.beans;version="3.2.1.RELEASE",
 org.springframework.cglib.core;version="3.2.1.RELEASE",
 org.springframework.cglib.proxy;version="3.2.1.RELEASE",
 org.springframework.cglib.reflect;version="3.2.1.RELEASE",
 org.springframework.cglib.transform;version="3.2.1.RELEASE",
 org.springframework.cglib.transform.impl;version="3.2.1.RELEASE",
 org.springframework.cglib.util;version="3.2.1.RELEASE"
 Export-Package: com.mycorp.filesystem.ui,
 com.mycorp.filesystem.ui.columns,
 com.mycorp.filesystem.ui.model

更新：我现在意识到只有在使用lookup method injection时才会导致这种特殊情况。由于我仍然不知道如何修复它，我不得不改变配置以不使用此功能。

2 个答案:

答案 0 :(得分：0)

我们通过将org.springframework.cglib等的import-package添加到org.springframework.transaction包来解决了类似的问题。

答案 1 :(得分：0)

在Spring 3.2中，他们似乎改变了内部类结构。使用默认的OSGI包，无法找到这些clib类。因此，您必须在MANIFEST.MF中明确指定您需要在上下文中加载的那些包。

您可以在jar文件中编辑MANIFEST.MF文件。在Import-Package部分中，添加以下3个包：

'org.springframework.cglib.core','org.springframework.cglib.proxy','org.springframework.beans.factory'

或者，如果您使用的是gradle，则可以执行以下操作（假设您已启用osgi插件）

jar { manifest { instruction 'Import-Package', 'org.springframework.cglib.core', 'org.springframework.cglib.proxy', 'org.springframework.beans.factory', '*' } }

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