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

错误报告：

SEVERE: End event threw exception
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.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)

原因：eclipse项目重构后更改web.xml配置头文件，生成

            <javaee:display-name>XX项目名</javaee:display-name>

将其删除即可。