Description of problem:
See:

https://www.redhat.com/archives/redhat-ccm-list/2004-February/msg00029.html

<quote>
Recently we have been doing stress testing and it seems that there is
a major scalability issue
com.arsdigita.sitenode.BasePresentationManager. If you have say for
example 100 sitenodes and each site node has a pretty complex xsl. 
BasePresentationManager will eat up a lot of ram. In our case its 20mb
of xsl on the custom package we have developed.
</quote>

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Create many (100's) SiteNode <-> Stylesheet mappings with  same XSL
file path
2. Visit all the sitenodes
3.
  
Actual results:
Out of memory exception

Expected results:
No OOM exception

Additional info:

No longer an issue for Rickshaw out-of-the-box, but should still be
applied for legacy users who upgrade.