Tomcat startup: Java. Lang. illegalargumentexception: Can't convert argument: NULL

An error occurred when Tomcat was started today.

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 (abstractsaxparser. Java: 601)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl. scanendelement (xmldocumentfragmentscannerimpl. Java: 1774)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl $ fragmentcontentdriver. Next (xmldocumentfragmentscannerimpl. Java: 2930)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentscannerimpl. Next (xmldocumentscannerimpl. Java: 648)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl. scandocument (xmldocumentfragmentscannerimpl. Java: 510)
At com.sun.org. Apache. xerces. Internal. parsers. xml11configuration. parse (xml11configuration. Java: 807)
At com.sun.org. Apache. xerces. Internal. parsers. xml11configuration. parse (xml11configuration. Java: 737)
At com.sun.org. Apache. xerces. Internal. parsers. xmlparser. parse (xmlparser. Java: 107)
At com.sun.org. Apache. xerces. Internal. parsers. abstractsaxparser. parse (abstractsaxparser. Java: 1205)
At com.sun.org. Apache. xerces. Internal. JAXP. saxparserimpl $ jaxpsaxparser. parse (saxparserimpl. Java: 522)
At org. Apache. tomcat. util. digester. digester. parse (digester. Java: 1644)
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: 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. deploydirectory (hostconfig. Java: 924)
At org. Apache. Catalina. startup. hostconfig. deploydirectories (hostconfig. Java: 887)
At org. Apache. Catalina. startup. hostconfig. deployapps (hostconfig. Java: 492)
At org. Apache. Catalina. startup. hostconfig. Start (hostconfig. Java: 1147)
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 (nativemethodaccessorimpl. Java: 39)
At sun. Reflect. delegatingmethodaccessorimpl. Invoke (delegatingmethodaccessorimpl. Java: 25)
At java. Lang. Reflect. method. Invoke (method. Java: 597)
At org. Apache. Catalina. startup. Bootstrap. Start (Bootstrap. Java: 288)
At org. Apache. Catalina. startup. Bootstrap. Main (Bootstrap. Java: 413)
9:53:54 org. Apache. Catalina. startup. contextconfig applicationwebconfig
Severe: Parse error in Application Web. xml file at JNDI:/localhost/accept/WEB-INF/Web. xml
Java. Lang. illegalargumentexception: Can't convert argument: NULL
At org. Apache. tomcat. util. digester. digester. createsaxexception (digester. Java: 2808)
At org. Apache. tomcat. util. digester. digester. createsaxexception (digester. Java: 2834)
At org. Apache. tomcat. util. digester. digester. endelement (digester. Java: 1143)
At com.sun.org. Apache. xerces. Internal. parsers. abstractsaxparser. endelement (abstractsaxparser. Java: 601)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl. scanendelement (xmldocumentfragmentscannerimpl. Java: 1774)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl $ fragmentcontentdriver. Next (xmldocumentfragmentscannerimpl. Java: 2930)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentscannerimpl. Next (xmldocumentscannerimpl. Java: 648)
At com.sun.org. Apache. xerces. Internal. impl. xmldocumentfragmentscannerimpl. scandocument (xmldocumentfragmentscannerimpl. Java: 510)
At com.sun.org. Apache. xerces. Internal. parsers. xml11configuration. parse (xml11configuration. Java: 807)
At com.sun.org. Apache. xerces. Internal. parsers. xml11configuration. parse (xml11configuration. Java: 737)
At com.sun.org. Apache. xerces. Internal. parsers. xmlparser. parse (xmlparser. Java: 107)
At com.sun.org. Apache. xerces. Internal. parsers. abstractsaxparser. parse (abstractsaxparser. Java: 1205)
At com.sun.org. Apache. xerces. Internal. JAXP. saxparserimpl $ jaxpsaxparser. parse (saxparserimpl. Java: 522)
At org. Apache. tomcat. util. digester. digester. parse (digester. Java: 1644)
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: 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. deploydirectory (hostconfig. Java: 924)
At org. Apache. Catalina. startup. hostconfig. deploydirectories (hostconfig. Java: 887)
At org. Apache. Catalina. startup. hostconfig. deployapps (hostconfig. Java: 492)
At org. Apache. Catalina. startup. hostconfig. Start (hostconfig. Java: 1147)
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 (nativemethodaccessorimpl. Java: 39)
At sun. Reflect. delegatingmethodaccessorimpl. Invoke (delegatingmethodaccessorimpl. Java: 25)
At java. Lang. Reflect. method. Invoke (method. Java: 597)
At org. Apache. Catalina. startup. Bootstrap. Start (Bootstrap. Java: 288)
At org. Apache. Catalina. startup. Bootstrap. Main (Bootstrap. Java: 413)
9:53:54 org. Apache. Catalina. startup. contextconfig applicationwebconfig
Severe: occurred at line 783 Column 18
9:53:54 org. Apache. Catalina. startup. contextconfig start
Severe: marking this application unavailable due to previous error (s)
2013-7-16 9:53:54 org. Apache. Catalina. Core. standardcontext start
Severe: Error getconfigured
2013-7-16 9:53:54 org. Apache. Catalina. Core. standardcontext start
Severe: context [/accept] startup failed due to previous errors
9:53:54 org. Apache. Coyote. http11.http11protocol start
Information: Starting coyote HTTP/1.1 on http-8081
9:53:54 org. Apache. JK. Common. channelsocket init
Information: JK: ajp13 listening on/0.0.0.0: 8099
9:53:54 org. Apache. JK. server. jkmain start
Description: JK running id = 0 time = 0/25 Config = NULL
9:53:54 org. Apache. Catalina. startup. Catalina start
Information: server startup in 3342 MS

Due to the Eclipse plug-in jetty run that has been used during the test, it is normal to start normally. Today, moving it to Tomcat makes an error, and the project cannot be re-compiled several times,

Later I found that the Web. XML in it is not the same as the previous one.

The generated

<Web-app xmlns: javaee = "http://java.sun.com/xml/ns/javaee" xmlns: Web = "http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<Javaee: Display-Name> archetype created web application </javaee: Display-Name>
<Filter>
<Filter-Name> jfinal </filter-Name>
<Filter-class> com. jfinal. Core. jfinalfilter </filter-class>
<Init-param>
<Javaee: param-Name> configclass </javaee: param-Name>
<Javaee: param-value> com. Fly. Core. initconfig </javaee: param-value>
</Init-param>
</Filter>
<Filter-mapping>
<Filter-Name> jfinal </filter-Name>
<URL-pattern>/index/* </url-pattern>
</Filter-mapping>

Previous

<Web-app version = "2.5"
Xmlns = "http://java.sun.com/xml/ns/javaee"
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_2_5.xsd>
<Filter>
<Filter-Name> jfinal </filter-Name>
<Filter-class> com. jfinal. Core. jfinalfilter </filter-class>
<Init-param>
<Param-Name> configclass </param-Name>
<Param-value> com. Fly. Core. initconfig </param-value>
</Init-param>
</Filter>
<Filter-mapping>
<Filter-Name> jfinal </filter-Name>
<URL-pattern>/index/* </url-pattern>
</Filter-mapping>

The generated header is different, and the javaee logo is added. It seems that the problem is here. After Changing Web. XML to the same as before, start Tomcat again.

I searched the internet and found that many people encountered this problem. The cause of this problem is:

When the Jee project name is restructured under eclipse, eclipse automatically updates the deployment file web. XML, re-generate the header Declaration of the XML file, add a new javaee namespace (Original: http://tchen8.iteye.com/blog/1041067 ),

The solution is to remove javaee from it: