Errors in cataling.out log confluence can't set it up to work.
Asked by Isaac Montes:

----------This was the start up log--------------------

INFO: Initialization processed in 614 ms

May 25, 2012 7:47:15 PM org.apache.catalina.core.StandardService start

INFO: Starting service Tomcat-Standalone

May 25, 2012 7:47:15 PM org.apache.catalina.core.StandardEngine start

INFO: Starting Servlet Engine: Apache Tomcat/6.0.32

2012-05-25 19:47:17,624 INFO \[main\] \[com.atlassian.confluence.lifecycle\] contextInitialized Starting Confluence 4.2.3 (build #3280)

May 25, 2012 7:47:28 PM org.apache.coyote.http11.Http11Protocol start

INFO: Starting Coyote HTTP/1.1 on http-8090

May 25, 2012 7:47:28 PM org.apache.catalina.startup.Catalina start

INFO: Server startup in 13518 ms

----------This this is the log when I stop it-------------------  
May 25, 2012 8:00:12 PM org.apache.coyote.http11.Http11Protocol pause  
INFO: Pausing Coyote HTTP/1.1 on http-8090  
May 25, 2012 8:00:13 PM org.apache.catalina.core.StandardService stop  
INFO: Stopping service Tomcat-Standalone  
May 25, 2012 8:00:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc  
SEVERE: The web application \[\] registered the JDBC driver \[org.hsqldb.jdbc.JDBCDriver\] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.  
May 25, 2012 8:00:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc  
SEVERE: 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.  
May 25, 2012 8:00:13 PM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc  
SEVERE: The web application \[\] registered the JDBC driver \[org.postgresql.Driver\] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.  
May 25, 2012 8:00:13 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap  
SEVERE: The web application \[\] created a ThreadLocal with key of type \[java.lang.ThreadLocal\] (value \[java.lang.ThreadLocal@63b34ca\]) and a value of type \[org.dom4j.DocumentFactory\] (value \[org.dom4j.DocumentFactory@1906bcf8\]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.  
log4j:ERROR LogMananger.repositorySelector was null likely due to error in class reloading, using NOPLoggerRepository.  
May 25, 2012 8:00:14 PM org.apache.coyote.http11.Http11Protocol destroy  
INFO: Stopping Coyote HTTP/1.1 on http-8090  
May 25, 2012 8:00:44 PM org.apache.tomcat.util.digester.SetPropertiesRule begin  
WARNING: \[SetPropertiesRule\]{Server} Setting property 'debug' to '0' did not find a matching property.  
May 25, 2012 8:00:45 PM org.apache.tomcat.util.digester.SetPropertiesRule begin  
WARNING: \[SetPropertiesRule\]{Server/Service/Engine} Setting property 'debug' to '0' did not find a matching property.  
May 25, 2012 8:00:45 PM org.apache.tomcat.util.digester.SetPropertiesRule begin  
WARNING: \[SetPropertiesRule\]{Server/Service/Engine/Host} Setting property 'debug' to '0' did not find a matching property.  
May 25, 2012 8:00:45 PM org.apache.tomcat.util.digester.SetPropertiesRule begin  
WARNING: \[SetPropertiesRule\]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.


Answers:
author: Colin Goudie
body: I don't believe these are major issues. The errors on shutdown are to do with the deregistration of the JDBC drivers. Some info from SO

<http://stackoverflow.com/questions/3320400/to-prevent-a-memory-leak-the-jdbc-driver-has-been-forcibly-unregistered>

TBH I have ignored these in installations myself but I'm interested to know if others have a better solution to :)