Tomcat迁移后出错，头大大，请问如何解决？！！

SEVERE: The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1] but h as failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:31 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2] but h as failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:31 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [MySQL Statement Cancellation Timer] but has failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:31 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [Dispatch-Thread-for-com.mchange.v2.async.ThreadPerTaskAsynchronousRunn er@d420eb] but has failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:31 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [Task-Thread-for-com.mchange.v2.async.ThreadPerTaskAsynchronousRunner@d 420eb] but has failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:31 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [] appears to have started a thread named [Task-Thread-for-com.mchange.v2.async.ThreadPerTaskAsynchronousRunner@d 420eb] but has failed to stop it. This is very likely to create a memory leak. May 28, 2014 5:48:33 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor host-manager.xml May 28, 2014 5:48:33 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor manager.xml May 28, 2014 5:48:33 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory examples May 28, 2014 5:48:33 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory docs May 28, 2014 5:48:33 PM org.apache.coyote.http11.Http11AprProtocol start SEVERE: Error starting endpoint