java.lang.IllegalArgumentException: Can't convert argument: null-白红宇

java.lang.IllegalArgumentException: Can't convert argument: null

阅读量：6967 次

发布时间：2019-06-27

本文共 3617 字，大约阅读时间需要 12 分钟。

java.lang.IllegalArgumentException: Can't convert argument: null

at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:999)

at org.apache.tomcat.util.digester.CallMethodRule.end(CallMethodRule.java:523)

at org.apache.tomcat.util.digester.Rule.end(Rule.java:229)

at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1140)

at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)

at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)

at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)

at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)

at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)

at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)

at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)

at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1644)

at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)

at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1066)

at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:4252)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)

at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:627)

at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)

at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)

at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)

at org.apache.catalina.core.StandardService.start(StandardService.java:516)

at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)

at org.apache.catalina.startup.Catalina.start(Catalina.java:578)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

问题是由于在Eclipse下重构JEE项目名时，Eclipse自动更新了部署文件web.xml,重新生成了xml文件的头部声明，新增加了javaee的命名空间：如下


        
     
      MessageBrokerServlet
         
     
      MessageBrokerServlet
         
     
      flex.messaging.MessageBrokerServlet
         
           
      
       services.configuration.file
            
      
       /WEB-INF/flex/services-config.xml
          
         
     
      1