Automatic integration for unknown plug-ins: extract clover-runtime artifact into current build folder (target/classes for clover2:setup and target/classes-clover for clover2:instrument). Thanks to this these runtime classes might be automatically picked up and packaged. Check if there is any Maven's build property holding list of classes which have to be updated.

Add configuration option for this, like:

extractCloverRuntimeIntoTargetClasses=true