leiningen-clojure (2.9.0-1) unstable; urgency=medium Leiningen has been updated to build and run with JDK11 for the buster release; however, some users may encounter performance degradations as a result. If you wish, you can override the default Java command used by Leiningen by exporting JAVA_CMD, for example: export JAVA_CMD=/usr/lib/jvm/java-8-openjdk-amd64/bin/java -- Elana Hashman Sun, 03 Mar 2019 14:19:48 +0000