Threads are going to be renewed over time to try and avoid a probable memory leak.

created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@d84431]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@64fcc9]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.

一月 14, 2014 9:04:20 下午 org.apache.catalina.startup.HostConfig checkResources
信息: Reloading context [/SSH_20140113_Registeration_5]
一月 14, 2014 9:04:20 下午 org.apache.catalina.core.StandardContext reload
信息: Reloading Context with name [/SSH_20140113_Registeration_5] has started
一月 14, 2014 9:04:20 下午 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
严重: The web application [/SSH_20140113_Registeration_5] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@d84431]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@64fcc9]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
一月 14, 2014 9:04:20 下午 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
严重: The web application [/SSH_20140113_Registeration_5] created a ThreadLocal with key of type [com.opensymphony.xwork2.inject.ContainerImpl$10] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@d84431]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@1782f86]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
一月 14, 2014 9:04:22 下午 org.apache.catalina.core.StandardContext reload
信息: Reloading Context with name [/SSH_20140113_Registeration_5] is completed

这个问题怎么解决？