Out of precaution, I've made maven 3.0.3 (or higher) a prerequisite to build droolsjbpm: - to make the build reproducible - to avoid "why doesn't this work on my machine but it does work on your machine?" - to avoid bugs (maven 2.2.1 did not deploy the jbpm poms) Grab the maven 3.0.3 download here: http://maven.apache.org/download.html There are a couple of tricks in the README to make such a maven upgrade faster: https://github.com/droolsjbpm/droolsjbpm-build-bootstrap/blob/master/READ... -- With kind regards, Geoffrey De Smet