I have noticed these messages too and would like to know if there is anything 
that can be done about them

Tim



On 29/05/2012, at 23:31, Ron Lift <rpgi...@gmail.com> wrote:

> At work we are migrating from RHEL 5 to RHEL 6 and also upgrading to Tomcat 
> 6. When I deploy the current application that is running on Tomcat 5.5 to 
> tomcat 6, I see the following messages in the catalina.out when I either 
> deploy the app, start/ stop the app or the tomcat instance.  I do not have 
> these messages in my tomcat 5.5 log files. Is there some setting that I am 
> missing?  Any help will be greatly appreciated
> Eclipse 3.6.1 , WOLips 3.6. MSSQL 2008R2 Database.
>  
> The last 2 messages repeat multiple times
>  
>  
> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader 
> clearReferencesJdbc
> SEVERE: The web application [/CoopApp] registered the JDBC driver 
> [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it 
> when the web application was stopped. To prevent a memory leak, the JDBC 
> Driver has been forcibly unregistered.
>  
> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader 
> clearThreadLocalMap
> SEVERE: The web application [/CoopApp] created a ThreadLocal with key of type 
> [er.extensions.eof.ERXEC$1] (value [er.extensions.eof.ERXEC$1@1083964f]) and 
> a value of type [java.util.Vector] (value [[]]) but failed to remove it when 
> the web application was stopped. This is very likely to create a memory leak.
>  
> May 29, 2012 8:59:00 AM org.apache.catalina.loader.WebappClassLoader 
> clearThreadLocalMap
> SEVERE: The web application [/CoopApp] created a ThreadLocal with key of type 
> [er.extensions.foundation.ERXThreadStorage.ERXThreadStorageCloneableThreadLocal]
>  (value 
> [er.extensions.foundation.ERXThreadStorage$ERXThreadStorageCloneableThreadLocal@2f012501])
>  and a value of type [java.util.HashMap] (value [{}]) but failed to remove it 
> when the web application was stopped. This is very likely to create a memory 
> leak.
>  
> Ron Lift
> C-E
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