严重: A web application created a ThreadLocal with key of type [null] (value [com.sun.faces.config.Con

严重: A web application created a ThreadLocal with key of type [null] (value [com.sun.faces.config.ConfigureListener$1@1c4e792]) and a value of type [null] (value [null]) but failed to remove it when the web application was stopped. To prevent a memory leak,
the ThreadLocal has been forcibly removed. http://confluence.atlassian.com/pages/viewpage.action?pageId=218275753 看看老外的这篇，好像就是在讲这个问题，原因大概是说tomcat 6.025之后引入了一种内存泄露的检查机制，会把不能垃圾收集的对像做日志

第一种解决办法：

使用低于6版本的tomcat

第二种解决办法：

在tomcat的server.xml文件中把
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>

这个监听给关了

如果还解决不了，重启一下机器试试