As part of my attempt to "solve" the problem of centralized scheduling (see http://forums.opensymphony.com/thread.jspa?messageID=167954 ), I created this ZeroSizeThreadPool.

It is basically a very simple implementation of ThreadPool which does not actually do anything, as you can see if you look at the code. Please read the forum post above to get a better understanding of why this might be a useful thing to add to the project.