关于java.lang.AbstractMethodError: org.apache.xerces.dom.DocumentImpl.setXmlVersion问题的解决

在学习《struts2.0权威指南》的时候遇见了如下错误：

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>

最终解决方案：
来源于博客
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
itssetDocumentInfo().
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.

我英语不太好：大致翻译了一下：大概是jvm中版本问题，jvm中没有jar包可以解析itsetDocumnetInfo()方法，缺少解析的jar包，到网上下载了个xerces.jar包，问题解决
struts2.0正常解析启动。