WebLogic发布点Activate Changes时候出错：java.lang.LinkageError: loader constraint violation: loader

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我是靠谱客的博主善良云朵，最近开发中收集的这篇文章主要介绍WebLogic发布点Activate Changes时候出错：java.lang.LinkageError: loader constraint violation: loader，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

环境：Linux+WebLogic10.3.0.0
在项目的WEB-INF目录下，有如下weblogic.xml文件

<?xml version="1.0" encoding="UTF-8"?>  
<weblogic-web-app  
	xmlns="http://www.bea.com/ns/weblogic/weblogic-web-app"
    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/ejb-jar_3_0.xsd">  
     <container-descriptor>
        <prefer-web-inf-classes>true</prefer-web-inf-classes>
    </container-descriptor>
</weblogic-web-app>

WebLogic里发布，如果在Linux命令行下发布，停止再启动就正常。
如果在控制台里发布，点update后，最后在点Activate Changes时候，出错，Log如下：

<2016-3-29 下午06时08分55秒 CST> <Warning> <HTTP> <BEA-101162> <User defined listener org.springframework.web.context.ContextLoaderListener failed: org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from file [/opt/bea/user_projects/domains/domain7006/CEACCSVR/WEB-INF/classes/applicationContext-cxf.xml]; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of weblogic/utils/classloaders/ChangeAwareClassLoader) previously initiated loading for a different type with name "org/w3c/dom/UserDataHandler".
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from file [/opt/bea/user_projects/domains/domain7006/CEACCSVR/WEB-INF/classes/applicationContext-cxf.xml]; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of weblogic/utils/classloaders/ChangeAwareClassLoader) previously initiated loading for a different type with name "org/w3c/dom/UserDataHandler"
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:420)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
	Truncated. see log file for complete stacktrace
java.lang.LinkageError: loader constraint violation: loader (instance of weblogic/utils/classloaders/ChangeAwareClassLoader) previously initiated loading for a different type with name "org/w3c/dom/UserDataHandler"
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
	at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:335)
	at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:288)
	Truncated. see log file for complete stacktrace

毫无疑问又是包冲突了，我查找下我的jar包里哪个含有“org/w3c/dom/UserDataHandler”，最后找到了jaxen-1.1.2.jar，删除后再点Activate Changes，就OK了