The repo is currently 274MB when cloned, and just the src tree (i.e., excluding past versions in .git) is 85MB — the actual code takes up negligible space, and the vast majority of that space is taken up by src/test/resources/gcd-head.zip.

This makes it take an unusually large amount of time to clone the repo, and it will likely grow every time this blob is updated to a new version.

Would it be possible to not version these large files (and ideally remove them from history while there are few forks), and get them from Maven or other sources, pinned to a specific version?