Appfoundation Memory Problem

I seem to have a Problem with the Appfoundation Add On as it causes my server to complain about memory leaks
I am using Apache Tomcat/7.0.14 and the error it gives is :

The following web applications were stopped (reloaded, undeployed), but their
classes from previous runs are still loaded in memory, thus causing a memory
leak (use a profiler to confirm):
/reisefuehrer

I found a description here:
http://wiki.apache.org/tomcat/MemoryLeakProtection

under [quote]
Webapp class instance indirectly held through a ThreadLocal value
[/quote]
but how can i fix it? Do i have to unload these threads in some way? How?

Thanks,
Niklas

AppFoundation uses the
ThreadLocal pattern
. All ThreadLocal references are cleared at the end of the HTTP-session, so the warning shouldn’t be a problem nor should AppFoundation cause any memory leaks.