zero down time with tc server and parallel deployment

[Julien ROTT]

Hi,

I'm trying to use the parallel deployment feature of tc server in order to
have zero down time.

In my tests, this works fine, but after a few deployments the server
crashes with memory errors.

I ran the server with the -XX:+HeapDumpOnOutOfMemoryError option to create
a dump and used Eclipse Memory Analyzer Tool to analyze the dump.

It appears that there are as many instances of
*org.apache.catalina.loader.WebappClassLoader
*as the number of versions of my app I deployed.

What can I do to be sure that my app is completely undeployed when a new
version is deployed ?