The uberjar wasn't generated when building. Tried bootstrapping and normal build (using a maven 2.0.6 install). I've had to patch the maven-core pom and specify the shade version to get it to work again. I've used version 0.4 (which was also used in maven 2.0.7) $ svn info Path: . URL: https://svn.apache.org/repos/asf/maven/components/tags/maven-2.0.6 Repository Root: https://svn.apache.org/repos/asf Repository UUID: 13f79535-47bb-0310-9956-ffa450edef68 Revision: 659652 Node Kind: directory Schedule: normal Last Changed Author: jvanzyl Last Changed Rev: 522714 Last Changed Date: 2007-03-27 04:40:40 +0200 (Tue, 27 Mar 2007)