TomEE – 无法为Web模块创建注释扫描程序：null
对于问题标题的模糊性我很抱歉，但我不完全确定我问的问题是什么。 我正在尝试部署我在TomEE上使用GWT构建的示例应用程序，但由于某种原因部署失败。 我有一个堆栈跟踪，但那个文本墙对我来说完全没有意义。 我知道注释扫描仪是什么，但我不知道为什么tomee无法创建一个或如何与我必须做的任何事情相关联来解决它。 该应用程序基本上是StockWatcher一个。 我除了把gwt输出放在我的战争的根目录上之外什么都没做，然后像这样添加一个web.xml（我不是那个有实际客户端服务器通信的部分，所以我只添加默认的servlet到服务静态内容）（在linux下运行，使用oracle jdk 1.7）
default org.apache.catalina.servlets.DefaultServlet debug 0 listings true 1 default /
这是catalina.out的最后一个输出
Apr 07, 2014 9:45:39 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive /home/hannes/apps/apache-tomee-plus-1.6.0/webapps/web.war Apr 07, 2014 9:45:39 PM org.apache.tomee.catalina.TomcatWebAppBuilder init INFO: ------------------------- localhost -> /web Apr 07, 2014 9:45:39 PM org.apache.openejb.util.JarExtractor extract INFO: Extracting jar: /home/hannes/apps/apache-tomee-plus-1.6.0/webapps/web.war Apr 07, 2014 9:45:39 PM org.apache.openejb.util.JarExtractor extract INFO: Extracted path: /home/hannes/apps/apache-tomee-plus-1.6.0/webapps/web Apr 07, 2014 9:45:39 PM org.apache.catalina.core.ContainerBase addChildInternal SEVERE: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/web]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:983) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:548) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1468) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1447) at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:303) at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:210) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:213) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: org.apache.tomee.catalina.TomEERuntimeException: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module web: null at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2049) at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1091) at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1051) at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:127) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 44 more Caused by: org.apache.openejb.OpenEJBException: Unable to create annotation scanner for web module web: null at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:838) at org.apache.openejb.config.DeploymentLoader.load(DeploymentLoader.java:219) at org.apache.tomee.catalina.TomcatWebAppBuilder.loadApplication(TomcatWebAppBuilder.java:2047) ... 51 more Caused by: java.lang.IllegalArgumentException at org.apache.xbean.asm4.ClassReader.(Unknown Source) at org.apache.xbean.asm4.ClassReader.(Unknown Source) at org.apache.xbean.asm4.ClassReader.(Unknown Source) at org.apache.xbean.finder.AnnotationFinder.readClassDef(AnnotationFinder.java:1120) at org.apache.xbean.finder.AnnotationFinder.(AnnotationFinder.java:139) at org.apache.xbean.finder.AnnotationFinder.(AnnotationFinder.java:152) at org.apache.xbean.finder.AsynchronousInheritanceAnnotationFinder.(AsynchronousInheritanceAnnotationFinder.java:43) at org.apache.openejb.config.FinderFactory.newFinder(FinderFactory.java:114) at org.apache.openejb.config.FinderFactory.create(FinderFactory.java:68) at org.apache.openejb.config.FinderFactory.createFinder(FinderFactory.java:57) at org.apache.openejb.config.DeploymentLoader.addWebModule(DeploymentLoader.java:830) ... 53 more Apr 07, 2014 9:45:39 PM org.apache.catalina.startup.HostConfig deployWAR SEVERE: Error deploying web application archive /home/hannes/apps/apache-tomee-plus-1.6.0/webapps/web.war java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/web]] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:904) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:983) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:548) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1468) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1447) at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:303) at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:210) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:213) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724)
再说一遍，对不起这不是一个更具体的问题，但我实际上并不了解这一点，实际上可以说明错误。
Caused by: java.lang.IllegalArgumentException at org.apache.xbean.asm4.ClassReader.(Unknown Source)
您是否尝试使用Java 8编译的类？ AFAICT，ASM4仅支持Java 7字节码（或旧版本），您需要ASM5 for Java 8。
尝试重新编译面向Java 7的类。