The version number is hard-coded in the integraition test java class, it's 1.3.0-SNAPSHOT. I haven't noticed it before because the 1.3.0-SNAPSHOT artifacts were actually present in my local maven repository. The problem makes the build fail when ran from an empty local repository. There should be a mechanism for specifying the correct aperture version number outside the actual java code.
fixed in rev 2066, this closes the issue.