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From Rakesh Vidyadharan <rak...@sptci.com>
Subject ThreadLocal errors logged in Tomcat 6.0.24
Date Sat, 13 Feb 2010 03:07:49 GMT
I upgraded to Tomcat 6.0.24 earlier today and started noticing the following messages on Tomcat
shutdown.  The deployed web app is the same (not the JR webapp, but my own) and does not generate
any of these messages on 6.0.20.

12-Feb-2010 14:23:20 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: A web application registered the JBDC driver [org.apache.derby.jdbc.AutoloadedDriver]
but failed to unregister it when the web application was stopped. To prevent a memory leak,
the JDBC Driver has been forcibly unregistered.
12-Feb-2010 14:23:20 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [Timer-1] but has failed
to stop it. This is very likely to create a memory leak.
12-Feb-2010 14:23:20 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [ObservationManager] but
has failed to stop it. This is very likely to create a memory leak.
12-Feb-2010 14:23:20 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: A web application appears to have started a thread named [jackrabbit-pool-1] but has
failed to stop it. This is very likely to create a memory leak.
12-Feb-2010 14:23:20 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value
[java.lang.ThreadLocal@8244f74]) and a value of type [org.apache.jackrabbit.core.query.lucene.PerQueryCache]
(value [org.apache.jackrabbit.core.query.lucene.PerQueryCache@7dc4cd9]) but failed to remove
it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been
forcibly removed.


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