2014-9-16 10:25:26 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc严重: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.2014-9-16 10:25:26 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads严重: The web application [] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak.