自从我将 web.xml 从 Java-EE-5 迁移到 Java-EE-6 后，我的应用程序出现问题。这是我部署应用程序时得到的堆栈跟踪:

24 août 2011 14:10:45 org.apache.catalina.startup.HostConfig deployDescriptor
GRAVE: Erreur lors du déploiement du descripteur de configuration ROOT.xml
java.lang.IllegalAccessError: class javax.xml.parsers.SecuritySupport12 cannot access its superclass javax.xml.parsers.SecuritySupport
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2818)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1148)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1643)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at org.apache.catalina.startup.ContextConfig.checkHandlesTypes(ContextConfig.java:1948)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:1911)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1800)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1768)
    at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1754)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1266)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:316)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5103)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:607)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:633)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:525)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1377)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
    at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1436)
    at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:856)
    at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:353)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:572)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
24 août 2011 14:10:47 org.apache.catalina.startup.HostConfig deployDescriptor

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
      version="3.0"> 

1 Câu trả lời

This blog post (在@balteo上面的评论中)有答案:

在 web.xml 中添加 metadata-complete="true"以覆盖注释的默认属性 3.0。默认情况下，Tomcat 7 将扫描所有类文件以查找注释，并尝试部署使用它理解的 Web 描述符找到的任何类。设置 metadata-complete 告诉 tomcat web.xml 和其他描述 rune 件是完整的，不要打扰注释。

这个解决方案似乎有效，但它并没有真正让我满意，因为我一直在多个 tomcat 7 服务器上部署相同的 war 没有问题，但是当我们最终部署到生产时，我们得到了这个错误。我仍然不确定为什么我们的生产服务器与测试服务器有什么不同。

关于jakarta-ee - 将 web.xml 从 Java EE 5 迁移到 Java EE 6 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7175250/