Ok, thanks for the hint, it has been useful :-) . Committed under trunk a new folder ci-builds-on-jenkins containing all junit and maven-ant-task jars and related licenses. Make all changes to build.properties and build.xml proposed by dreamtangerine and all works good (there is only a small problem with the dist task but could be simple to fix it).
In the JIRA issue I just uploaded the patch for this first step, but a step2 will follow probably tomorrow, to fix Jenkins builds. Then I'll post another patch, so before committing someone can give me a feedback ... Let's update. Bye
