pom.sha1 file sometimes contains sha1 hash twice in a row

[sheldonneuberger-sc]

We sometimes see a pom.sha1 file contain an invalid hash that is just duplicated twice, i.e. 80 bytes total (the same 40 bytes repeated twice). It happens rarely, we're not sure of the root cause, and then once it does happen that particular builder will continue to fail due to the presence of the invalid pom.sha1.

Using courseir 2.1.4.

checksum format error: /home/me/.cache/coursier/gcs/mybucket/releases/com/foo/bar/1.0.603740/bar-1.0.603740.pom.sha1

[lefou]

To my understanding, coursier can still produce concurrency situations when writing files. (In Mill, where we use coursier internally, we work around by re-trying) Although I never saw what you describe, it could be another symptom of the same issue.