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 itwhen the web application was stopped. To prevent a memory leak,
theThreadLocal has been forcibly removed.
看看老外的这篇，好像就是在讲这个问题，原因大概是说tomcat6.025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<ListenerclassName="org.apache.catalina.core.JreMemoryLeakPreventionL