Fortunately, they can't pull the artifacts from Maven Central.
Pulling an open-source project upon which people may depend is total jerk behavior.
Of those four commits, one was a version bump, one a README tweak, and two were merge commits.
The source code is there on Maven Central, alongside the build artifacts, but the git history is gone.
It's out of date - only goes as far as 1.5, but at the very least you can import the 1.6.1 source as one big commit.
Always something to be mindful of.
Also note that there seems to be a mirror for the PyPI packages.