myeclipse关闭tomcat7时提示错误

[辣不甜]

严重: The web application [/StockManager] registered the JDBC driver [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
九月 24, 2013 8:16:31 上午 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
严重: The web application [/StockManager] created a ThreadLocal with key of type [com.microsoft.sqlserver.jdbc.ActivityCorrelator$1] (value [com.microsoft.sqlserver.jdbc.ActivityCorrelator$1@1e792e9]) and a value of type [com.microsoft.sqlserver.jdbc.ActivityId] (value [d8cd0a5e-076a-428f-89f8-b031e4323b63-1]) 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.

求解答

[花谢尊前不敢香]

这个是tomcat7的安全性策略造成的，可以不理会。

[辣不甜]

感谢，只是看到有个错误，想找个明白