Shutdown hooks don't run in REPL

[sfnelson]

When using the REPL, I would expect Stop REPL or Close REPL Tab to shut down the REPL JVM gracefully, running any shutdown hooks as appropriately.

Example:

(.addShutdownHook (Runtime/getRuntime) (Thread. ^Runnable (fn [] (println "shutdown")) "shutdown"))

When run in a Clojure REPL or Leiningen nREPL, the JVM will print shutdown before it terminates.

When run in Cursive's REPL nothing is printed when Stop REPL is pressed. If you end the process by calling (System/exit 0) the hook does run, so it is being registered successfully.

Maybe relevant: https://stackoverflow.com/a/4727696/1209442

[sfnelson]

This issue is relevant because it prevents File/deleteOnExit hook from running, which leaks temporary files (e.g. test output).

[jeff303]

Having the same issue here (5 years on). Temurin 17 JDK, OS X 12.3, IntelliJ Ultimate 2021.3.2, Cursive 1.12.1-2021.3