严重: A web application created a ThreadLocal with key of type...
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
这个监听给关了
如果还解决不了，重启一下机器试试。
PS:http://wiki.apache.org/tomcat/MemoryLeakProtection
