Should try to accomplish building, etc without the use of a maven.xml file
if a project depends on maven.xml, it is considered a 'custom build'
cross-project dependencies
... can be resolved by using jar:install goal to install jar distributions into the local maven repository (using the projects groupId, etc).... ~/./maven/repository
It appears that all of the sakai2.0 'submodules' (from a cvs perspective) are being deployed to cvs.sakaiproject.org/maven/sakai2