Kohsuke,

A VMware Host machine can only support a finite number of running virtual machines.

Need a way to ensure that all the builds of multiple projects do not try and
start too many virtual machines on each VMware Host that Hudson is controlling.

Need a way to ensure that multiple projects do not try to stop and start the
same Virtual Machine at the same time.

The Queue/Resource mechanism seems to be the way to do this. How would I get a
BuildWrapper to hook into this.