I have a situation where I'm retrofitting
some old code to use the PropertyHelper delegates that where added in Ant
1.8; in particular I need to limit that scope to which a certain delegate
I know how to add a delegate but there
doesn't seem to be any way of removing a delegate once it's no longer needed:
they seem to persist forever. As a stop-gap I've added a way to "deactivate"
my delegate such that it will always return the proper values so that the
next delegate will be invoked, but that seems like a poor work around.