Tomcat 6.0.24では(22あたりから?)、clearReferenceまわりの処理が強化したのか、以下のようなエラーログがでるようになってしまった。これはどうすれば良いのかね。Tomcatのコードをよく読まんとわからん…。
2010/02/09 6:26:01 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 致命的: A web application registered the JBDC driver [org.h2.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 2010/02/09 6:26:01 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 致命的: A web application registered the JBDC driver [org.h2.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 2010/02/09 6:26:01 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 致命的: A web application appears to have started a thread named [Seasar2-TimeoutManager] but has failed to stop it. This is very likely to create a memory leak. 2010/02/09 6:26:01 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads 致命的: A web application appears to have started a thread named [H2 Log Writer FESS] but has failed to stop it. This is very likely to create a memory leak. ...