异常1

严重: End event threw exception
java.lang.IllegalArgumentException: Can't convert argument: null
 at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:976)
 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:1058)
 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$FragmentContentDispatcher.dispatch(Unknown Source)
 at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
 at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
 at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1562)
 at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:369)
 at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1062)
 at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.StandardContext.start(StandardContext.java:4239)
 at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1105)
 at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1203)
 at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)
 at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
 at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
 at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
 at java.lang.Thread.run(Unknown Source)
2010-3-21 11:55:01 org.apache.catalina.startup.ContextConfig applicationWebConfig