Where did Clover originally come from?

Clover was originally developed at Cenqua as an internal tool to support development of large J2EE applications. Existing tools were found to be too cumbersome to integrate with complex build systems and often required specialized development and/or runtime environments that were not compatible with target J2EE Containers. Another feature that we found lacking in other tools was simple, source-level coverage reporting - the kind that is most useful to developers.