Worklight 适配器SAX2 driver not found异常

今天在windows server 2003+jdk7.0环境下部署Worklight项目时，发现一个诡异的异常：

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通过http适配器解析soap时，解析失败，服务器抛出异常：

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org.xml.sax.SAXException: SAX2 driver class org.apache.xerces.parsers.SAXParser not found
java.lang.ClassNotFoundException: org.apache.xerces.parsers.SAXParser
Caused by: org.xml.sax.SAXException: SAX2 driver class org.apache.xerces.parsers.SAXParser not found
java.lang.ClassNotFoundException: org.apache.xerces.parsers.SAXParser

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研究了半天发现，org.apache.xerces.parsers.SAXParser在jdk7.0里不存在，倒是有个

com.sun.org.apache.xerces.internal.parsers.SAXParser

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于是在Eclipse启动配置文件eclipse.ini中加入一行

-Dorg.xml.sax.driver=com.sun.org.apache.xerces.internal.parsers.SAXParser

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重启Eclipse，搞定