Apparently clojure library compiled by JDK 21 and above cannot be used inside a JDK below 21 https://aphyr.com/posts/369-classnotfoundexception-java-util-sequencedcollection, so I have to release a 0.9.18. Also added set-env-flags and get-env-flags, so transaction durability can be changed on the fly.
One can vote on this bug on http://ask.clojure.org: https://ask.clojure.org/index.php/13748/java-lang-noclassdeffounderror-java-sequencedcollection?show=13748#q13748