struts2.0配置问题，求大神帮助
问题如下：
  配置完成：出现如下错误：
  严重: Exception starting filter struts2
  java.lang.AbstractMethodError: org.apache.xerces.dom.DocumentImpl.setXmlVersion(Ljava/lang/String;)V
   
我的配置如下：
  用了5个jar包：
  commons-loggin-1.1.jar
  freemarker-2.3.13.jar
  ognl-2.6.11.jar
  struts2-core-2.1.6.jar
  xwork-2.1.2.jar
 其中web.xml文件的内容如下：
 <?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<!-- struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>

  其他的还没有写，就出现了上面的错误，请大神指教，小弟在此谢过。
   




------解决方案--------------------
少了很多jar包
------解决方案--------------------
网上有一个解答：
 
The reason was in JVM version. Platforms where deployment was successful used JVM 1.5 but problematical one had JVM 1.6. SAX2DOM class from Java 1.6 has a call to DocumentImpl::setXmlVersion() from its setDocumentInfo(). The version of xerces library I used doesn't have this method - it's a real reason of exception. So after I downloaded the latest version of xerces everything works fine.

引用 http://coffeef.iteye.com/blog/445442