java - JBoss 中 Spring Objenesis 中的 NoClassDefFoundError

Question

我很抱歉前面的长篇文章，但我认为正确理解问题是必需的

语境

我在 Jboss EAP 上使用 Spring Multi Module 应用程序以及 Jboss 模块（共享库）中的所有依赖项 jar：

<dependencies> <module name="com.etcbase.sharedlib" slot="4.3.14" export="true" meta-inf="export" /> <module name="org.jboss.jts" /> </dependencies>

除此之外，我正在使用Hotswap-Agent，它使用弹簧对象来实现其功能，如下面的方法为热交换创建弹簧代理：

private Method getProxyCreationMethod(Object bean) throws CannotCompileException, NotFoundException {
    if (getCp(loader).find("org.springframework.cglib.proxy.MethodInterceptor") != null) {
        if (createSpringProxy == null) {
            synchronized (springLock) {
                if (createSpringProxy == null) {

                    ClassPool cp = getCp(loader);

                    springCallback = buildProxyCallbackClass(SPRING_PACKAGE, cp);
                    springNamingPolicy = buildNamingPolicyClass(SPRING_PACKAGE, cp);

                    springProxy = buildProxyCreaterClass(SPRING_PACKAGE, springCallback, springNamingPolicy, cp);

                    createSpringProxy = springProxy.getDeclaredMethods()[0];

                }
            }
        }
        return createSpringProxy;

现在在创建 SpringProxy 之后，它在下面的 java 反射中使用它：

private Object doCreate(Object beanFactry, Object bean, Class<?>[] paramClasses, Object[] paramValues) {
    try {
        Method proxyCreater = getProxyCreationMethod(bean);
        if (proxyCreater == null) {
            return bean;
        } else {
            return proxyCreater.invoke(null,beanFactry, bean, paramClasses, paramValues);
        }
    } catch (IllegalArgumentException | InvocationTargetException e) {


        LOGGER.warning("Can't create proxy for " + bean.getClass().getSuperclass()
                + " because there is no default constructor,"
                + " which means your non-singleton bean created before won't get rewired with new props when update class.");
        return bean;
    } catch (IllegalAccessException | CannotCompileException | NotFoundException e) {
        LOGGER.error("Creating a proxy failed", e);
        throw new RuntimeException(e);
    }
}

因此，在 proxyCreater（来自 SpringProxy 方法）尝试使用调用功能之后。然后它抛出 InvocationTargetException 并打印警告说它不能热交换 bean，因为它没有默认构造函数。

问题：调试后问题的根本原因是：

Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.springframework.objenesis.instantiator.util.UnsafeUtils

从上面完成调试日志：

    HOTSWAP AGENT: 10:49:35.672 ERROR (org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater) - Can't create proxy for class com.etcbase.sfc.util.IdManagerImpl because there is no default constructor, which means your non-singleton bean created before won't get rewired with new props when update class.
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19) HOTSWAP AGENT: 10:49:35.673 WARNING (org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater) - error
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19) java.lang.reflect.InvocationTargetException
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at sun.reflect.GeneratedMethodAccessor143.invoke(Unknown Source)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.lang.reflect.Method.invoke(Method.java:498)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.doCreate(EnhancerProxyCreater.java:114)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.create(EnhancerProxyCreater.java:83)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.hotswap.agent.plugin.spring.getbean.EnhancerProxyCreater.createProxy(EnhancerProxyCreater.java:79)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.hotswap.agent.plugin.spring.getbean.ProxyReplacer.register(ProxyReplacer.java:85)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1316)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1282)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
10:49:35,673 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
10:49:35,675 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
10:49:35,676 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:443)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:325)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:205)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:174)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:239)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:99)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:81)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
10:49:35,677 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at java.lang.Thread.run(Thread.java:748)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.jboss.threads.JBossThread.run(JBossThread.java:320)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19) Caused by: org.springframework.objenesis.ObjenesisException: java.lang.NoClassDefFoundError: Could not initialize class org.springframework.objenesis.instantiator.util.UnsafeUtils
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.objenesis.SpringObjenesis.newInstantiatorOf(SpringObjenesis.java:149)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.objenesis.SpringObjenesis.newInstance(SpringObjenesis.java:100)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at HotswapAgentSpringBeanProxy_1796692748.create(HotswapAgentSpringBeanProxy_1796692748.java)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   ... 92 more
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19) Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.springframework.objenesis.instantiator.util.UnsafeUtils
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.objenesis.instantiator.sun.UnsafeFactoryInstantiator.<init>(UnsafeFactoryInstantiator.java:43)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.objenesis.strategy.StdInstantiatorStrategy.newInstantiatorOf(StdInstantiatorStrategy.java:98)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   at org.springframework.objenesis.SpringObjenesis.newInstantiatorOf(SpringObjenesis.java:125)
10:49:35,678 INFO  [stdout] (ServerService Thread Pool -- 19)   ... 94 more

从上面看来，Jboss的当前类加载器（这里似乎是JbossModuleLoader）无法访问spring obejenisis Unsafe utils，除此之外，我检查了Jboss模块内部的相应jar中的UnsafeUtils对于所有罐子。

我将链接我在 github 上创建的问题，因为它可能会有所帮助，但这就是我所知道的全部。

有没有办法通过另一个类加载器找到 unsafeutils 或者这是另一个问题？

对此的 Github 问题

标签： javaspringspring-mvcjbossjvm

Answer 1

解决方案

要解决“无法初始化类 org.springframework.objenesis.instantiator.util.UnsafeUtils”问题，请将以下内容添加到您的 jboss module.xml 文件中。UnsafeUtils 类有一个引用 sun.misc.Unsafe 的静态初始化块。

<dependencies>
        ....
        <module name="sun.jdk" export="true" >
            <imports>
                       <include path="sun/misc/Unsafe" />
            </imports>
        </module>
 </dependencies>
</module>