hi my friends .
i want to deploy my spring + hibernate portlet . but on deploy time give below error :
Apr 12, 2015 6:32:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/Student-portlet] 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.
Apr 12, 2015 6:32:50 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/Student-portlet] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.
im deleted mysql library and moved to tomcat lib's folder . but there was no effect;
please help me.
