java.lang.LinkageError: loader constraint violation解决

深藏阁楼爱情的钟 2022-04-12 11:44 927阅读 0赞

### 环境 ###

JBoss 6.0 + MyEclipse 8.6 + MySQL 5.1 + Struts 2.3 + EJB 3.0

### 问题 ###

启动JBoss出现如下异常：

[ClassLoaderManager] Unexpected error during load of:org.w3c.dom.TypeInfo: java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) previously initiated loading for a different type with name "org/w3c/dom/TypeInfo"

### 解决 ###

包冲突，检查Struts Jar包版本是否正确。

我的项目使用JAR包如下图：

![EJB使用JAR包][EJB_JAR]

### 参考资料 ###

[http://somebody-hjh.iteye.com/blog/778883][http_somebody-hjh.iteye.com_blog_778883]

[http://blog.sina.com.cn/s/blog\_938d86e90100z7vj.html][http_blog.sina.com.cn_s_blog_938d86e90100z7vj.html]

[http://stackoverflow.com/questions/5638191/jboss-5-classloader-and-multiple-class-instances][http_stackoverflow.com_questions_5638191_jboss-5-classloader-and-multiple-class-instances]

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[EJB_JAR]: https://img-my.csdn.net/uploads/201301/07/1357521874_6899.jpg
[http_somebody-hjh.iteye.com_blog_778883]: http://somebody-hjh.iteye.com/blog/778883
[http_blog.sina.com.cn_s_blog_938d86e90100z7vj.html]: http://blog.sina.com.cn/s/blog_938d86e90100z7vj.html
[http_stackoverflow.com_questions_5638191_jboss-5-classloader-and-multiple-class-instances]: http://stackoverflow.com/questions/5638191/jboss-5-classloader-and-multiple-class-instances