I have a bunch of Maven2 projects that depend on each other, each built separately
by Hudson. Before we upgraded to 1.318 and selected "Use private Maven repository"
for these projects, they correctly found their upstream/downstream dependencies
and built in the right order. Now, a change to any one project only builds it.

I have an aggregation project that runs (sonar, findbugs, pmd etc) on a top-level
pom over all these projects, also with a private Maven repository, and it
correctly identifies modules and kicks off dependent builds (although I'd rather
it didn't!), so the fact that the sub-modules don't is a bit strange.