The reference to the Docker image clojure:lein-2.8.1 was stale
Updating that to clojure:lein-2.9.1 also bumped to Java 11, which revealed an incompatibility (I think) between Java 11 and JavaMail. I don't have time to fix right now.
Updated JavaMail to 1.6.2, but that seems ok.
Using clojure:openjdk-8-lein-2.9.1 works, so we'll go with that for now.
The tests weren't passing in CI, a few notes:
clojure:lein-2.8.1
was staleclojure:lein-2.9.1
also bumped to Java 11, which revealed an incompatibility (I think) between Java 11 and JavaMail. I don't have time to fix right now.clojure:openjdk-8-lein-2.9.1
works, so we'll go with that for now.