This is a bugfix release that addresses issues found in Clover-for-Maven 3.1.7 and earlier versions.
1) It is possible to define location/name of the dynamically created grover*.jar artifact (used for compilation of Groovy code, by default in java.io.tmpdir) or to disable its creation at all.
Reported in CLOV project
Please see also the Clover-for-Ant Changelog for all changes in the Clover product.