Changing location of Clover instrumented classes

I'm using Clover 2.5 and I've got a target that will package up the binary files. However, at the moment, it seems that the Clover instrumented classes are being generated in the same output directory as the un-instrumented classes that I wish to package up in a jar.

How do I go about creating a jar so that the instrumented classes are not included? Is there a way to change where the instrumented classes are spat out? Or is the only way to package up a jar that does not include the instrumented classes is to re-compile everything again?

I tried using the tmpdir attribute of the clover-setup target but that did not seem to have any effect.